JETSURF ULTRA SPORT User manual

USER
MANUAL
versions 18-R001/EN_part A
A
part
JETSURF ULTRA SPORT
JETSURF FACTORY GP
JETSURF RACE
models

318-R001/EN_part A
Name of engine manufacturer: MSR Engines s.r.o.
Address: Krásného 3857/7
Town: Brno Post Code: 636 00 Country: Czech Republic
Name of Notied Body for design and construction assessment: Ceskoslovensky Lloyd s.r.o.
Address: Pobřežní 620/3
Town: Praha 8 Post Code: 186 00 Country: Czech Republic ID Number: 2371
EC Type-Examination Certicate number: 5390403 Date: 24 / 10 / 17
Module used for construction assessment:
Other Community Directives applied: Regulation 595/2009/EC
This declaration of conformity is issued under the sole responsibility of the manufacturer. I declare on behalf of the craft
manufacturer that the craft mentioned above complies with all applicable essential requirements in the way specied (and
is in conformity with the type for which above mentioned EC type examination certicate has been issued) – delete text
between brackets if no EC type examination certicate has been issued.
Name and function: Martin Šula, CEO of MSR Engines s.r.o.
Signature: ......................................................................................................................................................
Date of issue: 24.10.2017
AA1 B+C B+D B+E B+F G H PCA
DECLARATION OF CONFORMITY
Name of craft manufacturer: MSR Engines s.r.o.
Address: Krásného 3857/7, 636 00 Brno, CZECH REPUBLIC
DESCRIPTION OF CRAFT:
Craft Identication Number (CIN):
Module used for construction assessment: B+C
Brand name of the craft: JetSurf™
Model: ULTRA SPORT / FACTORY GP / RACE
Type of craft: motorized surfboard
Maximum Design Category: D
Type of hull: monohull
Max Rider weight: 100 kg
Passenger capacity: One operator
Construction material: carbon
Dimensions of hull: 1800 mm - length; 600 mm - beam; 150 mm - height
CZ-MSR
JSU
YVS
FD
DECLARATION OF CONFORMITY
Declaration of Conformity of Marine Engine with the Directive 2013/53/EU NV 96/2016 Sb (To be
completed by engine manufacturer) 2/2017
DESCRIPTION OF COMPONENT:
Engine:
Engine serial number:
Type of main Propulsion: two-stroke petrol engine / inboard
Engine power: 7,6 kW
Engine name: MSR 50.2
Emissions: According to the Directive 2013/53/EU:
Annex I.B – Exhaust Emissions Inboard engine emissions ČSN EN ISO 18 8584; 2013/53/EU Annex I. B
Annex I.C – Noise Emissions ČSN EN ISO 14509
Owner’s manual Engine MSR 50.2.
This is to declare that the engine specied above is in conformity with the essential require-
ment od Government notice 96/2016 Sb / 2013/53/EU , Annex I.
PLEASE KEEP THIS MANUAL AT A SAFE PLACE AND HAND IT OVER TO A NEW OWNER IF YOU SELL
THE JETSURF.
THE MANUAL COMPRISES OF TWO PARTS (Part A and Part B) which form an integral document.
The rules and warnings included in one part apply to the other.
Therefore always keep both parts with you.
SYMBOLS USED
This symbol is used to mark important warnings which are often
ignored by the JetSurf users. Please pay due attention to these
warnings. You will thus avoid making frequent user mistakes.
These warnings are based on the experience of the JetSurf ser-
vice technicians. Ignoring these warnings may cause permanent
damage to the vessel and its parts.
SAFETY WARNING SYMBOLS
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow the symbol to avoid possible injury
or death.
DANGER indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which,
ifnot avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which,
ifnot avoided, may result in minor or moderate injury.
NOTICE is used to address practices not related to physical inju-
ry. This information could result in damages to the product that
are not covered under warranty.
These icons will appear throughout the Owner’s Manual.
WARNING
CAUTION
NOTICE

4 518 -R001/EN_part A 18-R001/EN_part A
INTRODUCTION
INTRODUCTION
USER MANUAL
Copyright 2017; All rights reserved
JetSurf™ motorized power boards were designed and manufactured by MotosurfWC and Formula 1 engi-
neers to push the limits of motor sports. The power boards created by JetSurf™ are the only motorized water
vehicles with the ability to be transported by hand, car, boat or plane (as hand luggage on international/
domestic carrier ights). This allows the users of JetSurf™ power boards to travel easily around the word –
aunique attribute in comparison to other motorized watercraft.
JetSurf™ parts and components are manufactured by MSR Engines, based in the Czech Republic. Thecom-
pany specializes in the development of combustion engines and specialized electronics.
JetSurf™ power boards are produced in a single factory that uses the highest standards of production technology.
Only the nest materials and components currently produced in the European Union are utilized. This compre-
hensive in-house production allows JetSurf™ to ensure themaximum precision and ecient production. Since
2017 the manufacturer has been an ISO 9001 certicate holder.
JetSurf™ power boards were developed with exceptional eort to minimize environmental impact. Through
specialized and the most advanced technology, engineers have reduced the total weight of the JetSurf™ power
board and accessories to forty four (44) pounds (twenty kilograms [+20]). JetSurf™ power boards meet homolo-
gation (registration for racing) standards for noise emissions, as well as using an internal combustion engine that
enforces the Greentech technology and complies with the emission limits set for motor vessels. The complete
drive unit is certied and approved by the European Commission and received the European Union label, CE. All
this eort toward compliance with international standards has ensured that the power boards are also compli-
ant with North American requirements for personal watercraft.
EPA Emissions Regulations:*
JetSurf motorized surfboards are certied to the United States Environmental Protection Agency (EPA) as con-
forming to the requirements of the regulations for the control of air pollution from new watercraft engines. This
certication is contingent on certain adjustments being set to factory standards. §1068.101(b)(1) prohibits tam-
pering, removal or rendering inoperative any device installed onto the engine in compliance with EPA regulations
prior to sale and delivery to, as well as after the sale to, the ultimate purchaser of the product.
Maintenance, replacement, or repair of the emission control devices and systems may be performed by any
marine engine repair establishment or individual.
Emission Control Information is printed onto the Engines as permanent evidence of EPA certication.
The information contained in this User Manual represents the most up-to-date product data available at the
time of printing. Because JetSurf™ is committed to continuous product improvements and advancement
of technology, the company reserves the right to change the product, components, specications or other
aspects of the JetSurf™ motorized power board without advance notice or a requirement to equip previously
produced JetSurf™motorized power boards with these changes. You can nd current upgrades on the Jet-
Surf™ websites (www.jetsurf.com). Check this website regularly.
This User Manual for Owners or Operators (hereafter referred to as the “User Manual”) cannot anticipate
every circumstance involved in owning or operating the motorized power board. JetSurf™ strongly encour-
ages owners and operators to regularly review the U.S. Coast Guard website (www.uscg.mil) or the relevant
coast guard and/or authority regulating the laws pertaining to the use of personal watercraft with particular
attention to information provided for personal watercraft. Also check JetSurf™ company’s website (www.
jetsurf.com) for updates and product information.
JetSurf™ provides the following information in the expectation of long and enjoyable ownership of this
JetSurf™ motorized power board.
This manual will help you to operate your vessel safely and easily. It contains a detailed description of the vessel,
its supplied or built-in accessories, systems and information about their operation and maintenance. Please
read it carefully and learn about the vessel before you start using it.
Do not set out on a ride until the conditions (wind force and wave height) correspond to the construction cate-
gory of your vessel and make sure you are able to safely control the vessel in these conditions.
This user manual does not include detailed maintenance or repair instructions. If you experience any problems,
contact the manufacturer of the vessel or its representative. If you have the maintenance manual, please follow
it during the vessel maintenance.
Maintenance, xing and adjustments of the vessel can only be made by trained and qualied persons. Any
adjustments which might aect the safety characteristics of the vessel have to be checked, implemented and
documented by a competent person. The manufacturer of the vessel cannot be held responsible for any ad-
justments not approved by it.
In some countries it is required to have qualication or certicate to control a vessel or some other special
regulations might apply.
Always duly maintain your motorized power board and be aware it will wear with time and as a result of demand-
ing operation or bad handling.
Each vessel, regardless how hard-wearing it is, can suer severe damage if used incorrectly. This is incompatible
with its safe use. Always adapt the speed and course of the vessel to the conditions (wind force and wave height).
The person controlling the vessel must use suitable swimming aids described in the chapter PERSONAL SWIM-
MING AIDS in this manual. It is necessary to point out that in some countries the law requires wearing swimming
aids under all circumstances while using the JetSurf™ and is therefore necessary to comply with these national
legislations.
PLEASE KEEP THIS MANUAL AT A SAFE PLACE AND HAND IT OVER TO A NEW OWNER IF YOU
SELL THE VESSEL.
This user manual comprises of two parts. Part A contains information valid for all the JetSurf models.
Part B includes information relating to the individual models. Any reference to the user manual al-
ways means both its parts.
* Valid for the USA

6 718 -R001/EN_part A 18-R001/EN_part A
1A IDENTIFICATION PLATES AND WARNINGS
IDENTIFICATION PLATE OF THE VESSEL
The identication plate of the vessel is attached in the motor compartment.
Information that you can not nd on this plate are written in respective category of the manual.
CRAFT IDENTIFICATION NUMBER (CIN)
The craft identication number is situated on the starboard near the stern.
ENGINE IDENTIFICATION PLATE
The engine serial number and information concerning the exhaust fume emission control is la-
ser-marked in the engine.
STAGE TWO – engine start ................32
BRIEF DESCRIPTION OF STARTING..........33
STARTING FROM THE BANK
(IN SHALLOW WATER) ....................33
STARTING IN DEEP WATER O
R AFTER FALLING DOWN ..................35
JETSURF CONTROL - THROTTLE ............35
JETSURF CONTROL - TURNING ............35
JETSURF CONTROL - RIDING ...............35
JETSURF CONTROL – STOPPING/FALLING ...36
AFTER THE RIDE .....................36
A BRIEF LIST OF TASKS TO BE DONE
BEFORE THE RIDE A BRIEF LIST OF
THE TASKS TO BE DONE AFTER THE RIDE ...37
WATER REMOVAL FROM THE FLOODED
ENGINE ............................38
4A STORAGE ...............40
SHORT-TERM STORAGE ...............40
LONG-TERM STORAGE ................40
5A TRANSPORT .............41
AIR TRANSPORT .....................41
TRANSPORT TO SERVICING ............41
6A MAINTENANCE . . . . . . . . . . . 42
SURFACE MAINTENANCE .............42
MAINTENANCE OF TECH. EQUIPMENT ......42
ENGINE MAINTENANCE ...............42
SPARK PLUG.........................42
SPARK PLUG REPLACEMENT...............43
CHECK OF SPARK PLUG...................43
MAINTENANCE OF FREEWHEEL .........44
APPLYING LUBRICANT IN THE FREEWHEEL . . 45
MAINTENANCE OF EXHAUST ENDING.....46
MAINTENANCE OF BILGE PUMP .........47
TABLE OF REGULAR MAINTENANCE ........48
7A WARRANTY ..............49
8A TROUBLESHOOTING ......54
SIGNALLINNG OF ICU FAULS ...........55
CHECK OF THE SPARK PLUG AND TIMING
SENSOR FUNCTION ........................56
CERTIFIKÁTY ..............................59
LIST OF SERVICE POINTS ......67
IDENTIFICATION PLATES AND WARNINGSTABLE OF CONTENTS
SYMBOLS USED .....................2
SAFETY WARNING SYMBOLS ...........2
USER MANUAL ................4
1A IDENTIFICATION PLATES AND
WARNINGS................... 7
IDENTIFICATION PLATE OF THE VESSEL ..7
CRAFT IDENTIFICATION NUMBER (CIN) ...7
ENGINE IDENTIFICATION PLATE .........7
WARNINGS ...........................8
2A SAFETY MATTERS.........11
DEFINITION .........................12
GENERAL COMMON SENSE ............12
CARBON MONOXIDE ..................13
ENGINE PREPARATION ................14
CLOTHING ..........................15
PERSONAL FLOTATION DEVICES (PFDs) . 15
LAW ENFORCEMENT..................16
UNDER THE INFLUENCE...............16
REGISTRATION.......................16
SPEEDING/NOISE ...................16
ELECTRONIC DEVICES ................16
JUMPS ON JETSURF ..................16
REPORTING ACCIDENTS AND INSURANCE17
REFUSE AND POLLUTION..............17
OTHER SAFETY MATTERS..............18
SAFE OPERATION ON THE WATER.......19
GENERAL PRUDENTIAL RULE ..........19
GENERAL EXPECTATIONS..............19
3A RIDE ....................22
BEFORE YOU START ..................22
STAND AND ITS UNFOLDING ..............22
FINS ...................................22
STRAPS .................................24
TUBES ..................................24
ELECTRIC CONNECTIONS ................24
CONTROL HANDLE.......................24
CHARGING OF THE ICU BATTERY...........25
FUEL TOP-UP ............................28
LUBRICATION ...........................29
START AND FIRST RIDE .............31
JETSURF STARTING ..................32
STAGE ONE – ICU activation ...............32
TABLE OF CONTENTS
or for the USA
or for the CANADA
CZ-MSR
JSU
YVS
SN : FD 10 00 00 5999 9
MS R En gi nes s. r. o.
DA TE O F MF G : 14 /1 5
MSR 50 .2
01/18
2018
J

8 918 -R001/EN_part A 18-R001/EN_part A
1 – sticker MSR 0116/M2-EN situated on the spark plug boot
2 – warning on the tank
3 – warning on the ICU
4 – sticker MSR 0717/H1-EN situated at the snorkel
5 – stickers MSR 0616/D1-EN and MSR 0316/D2-EN situated on the engine complement hood
WARNINGS
Before using this vehicle, read the following plates. If you have any questions, consult a sales repre-
sentative of JetSurf™.
IDENTIFICATION PLATES AND WARNINGS IDENTIFICATION PLATES AND WARNINGS
2
4
1
3
SN:180000
06/2017
PN: A000080
DANGER
HIGH VOLTAGE
BATTERY Li-Ion 73.2 Wh (6.6 Ah)
NOMINAL VOLTAGE 11.1 V
MAX.CHARGING VOLTAGE 12.6 V
CLEANING/OFF
ICU
IGNITION CONTROL UNIT
SN.111822
DANGER
HIGH VOLTAGE
P L A CE E NG IN E SH UT-O F F KE Y
Batt ery Li- Ion 3, 2 Ah
nomi nal volt age 11 V
max. charg ing voltage i s 12,6 V
ICU
i i
see
Read
the manual!
ECU
Batt ery Li- Ion 3, 2 Ah
nomi nal volt age 11 V
max. charg ing voltage is 12, 6 V
P L A CE E NG IN E SH UT-O F F KE Y
i i
see
Read
the manual!
P L A CE E NG IN E SH UT-O F F KE Y
ECU
Battery Li-Ion 3,2 Ah
nomi nal volt age 11 V
max. charging voltage is 12,6 V
i i
see
Read
the manual!
SN.111822
DANGER
HIGH VOLTAGE
P L A CE E NG IN E SH UT-O F F KE Y
batt ery Li-Ion 3 ,2 A h
nomi nal volt age 11 V
max. charg ing voltage i s 12,6 V
ICU
i i
see
Read
the manual!
ECU
batt ery Li- Ion 3, 2 Ah
nomi nal volt age 11 V
max. charg ing voltage is 12, 6 V
P L A CE E NG IN E SH UT-O F F KE Y
i i
see
Read
the manual!
ECU
battery Li-Ion 3,2 Ah
nomi nal volt age 11 V
max. charg ing voltage is 12, 6 V
nové
i i
see
Read
the manual!
dolaserování
model FACTORY GP, RACE
SN.XXXXXX
DANGER
HIGH VOLTAGE
PLACE ENGINE SHUT-OFF KEY
batte r y Li-Ion 48, 8 Wh (4,4 Ah)
nominal v olt age 11,1 V
max. char ging v oltage i s 12, 6 V
ICU
i i
see
Read
the manual!
model Ultra Sport
1
2
45
3

10 1118 -R001/EN_part A 18-R001/EN_part A
SAFETY MATTERSIDENTIFICATION PLATES AND WARNINGS
52A SAFETY MATTERS
BEFORE USING THE POWER BOARD THE FIRST TIME, READ THIS ENTIRE OWNER’S
MANUAL.
If any of the information is not clearly understood, contact the retail sales dealer for clarication and
further understanding prior to operating the power board. Safety is the primary concern of Jet-Surf™,
and it needs to be for all owners and operators as well.
The Safety information provided in this Owner’s Manual cannot anticipate every circumstance that
may arise while maintaining and operating the power board. Basic safety information is provided
and it is not all-inclusive. JetSurf™ strongly encourages all owners and operators to regularly review
the U.S. Coast Guard safety information (www.uscg.mil and www.uscgboating.org)* and other safe-
ty-minded, watercraft websites and authorities which apply to the relevant area/region under which
the JetSurf™ power board is to be operated.
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow the symbol to avoid possible injury or death.
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
NOTICE is used to address practices not related to physical injury.
This information could result in damages to the product that are
not covered under warranty.
These precaution icons will appear throughout the Owner’s Manual.
* Valid for the USA
WARNING
CAUTION
NOTICE

12 1318 -R001/EN_part A 18-R001/EN_part A
SAFETY MATTERSSAFETY MATTERS
DEFINITION
“Power board” or “motorized surfboard,” interchangeable terms in this Owner’s Manual, mean a ves-
sel that uses an inboard petrol-and-oil-powered engine, providing power to a water-jet pump as its
primary source of propulsion power. It is designed to be operated by a person (“rider” or “operator”)
sitting, standing or kneeling on the vessel. Direction of JetSurf™ is controlled by rider leaning to one
side or another, speed is controlled by throttle trigger located on the handle.
GENERAL COMMON SENSE
It is the responsibility of the owner and/or operator to comply with safe-
ty-related material provided in this Owner’s Manual and to regularly re-
view safety information provided by governmental agencies and local ju-
risdictions. Common sense should guide owners/operators at all times,
regardless of whether the engine is running or not. Failure to do so will
result in serious injury or death.
Riders are reminded that general common sense should be the rule for any and all outings. While
some objects appear above water and are easily avoidable, it may be necessary to pay special atten-
tion to underwater objects as well.
In using the power board, some common sense considerations are for safety of the rider and other
vessel riders, boaters and passengers, while common sense also is necessary to preserve the power
board in good shape.
JetSurf™ cannot anticipate every type of activity or negligent performance that could result in death/
injury or damage. The operator accepts responsibility for use of the power board in a safe and
sensible manner. Particular attention must be paid to surroundings at all times to avoid accidents.
Care must also be taken to avoid situations in which carbon monoxide fumes may become trapped
between objects or may be released out-of-the-water. Be certain to read the information regarding
carbon monoxide poisoning contained in this section of the Owner’s Manual.
With regard to damage to the power board, riders should avoid running it all the way to shore. Often,
beaches or shoreline are made up of rocks and/or sand that can scratch or dent the power board.
Such occurrences are not covered under the JetSurf™ Limited Warranty statement, which appears
later in this Owner’s Manual.
Familiarity with the nautical waters in which the power board will be operated is extremely important.
Currents, especially strong ones, can aect the performance of the power board and threaten the
safety of the operator. Pay attention to buoys and other markers also.
It is critical for all owners and operators to be prepared to maintain and operate the power board in
a responsible and common sense manner at all times.
All riders must use helmet, life vest and a safety leash at all times while operating JetSurf™ to prevent
any serious injury or death in the events of accident (you can nd more details in CLOTHING category).
CARBON MONOXIDE
Carbon monoxide (CO) is a gas and it can be extremely dicult to de-
tect, because it has no color, taste or odor and it can accumulate without
awareness. Exposure can be fatal in a matter of minutes. The eects of
CO are cumulative and repeated exposure to low amounts can have a
similar eect to a single high concentration exposure. Carbon monoxide
should be avoided, while any exposure should be treated immediately.
The exhaust on the power board is purposely located at the stern (rear) of the board. While emis-
sions from the engine are relatively low due to its purpose-built design which ventilates into the water
under normal operation, there are still some CO fumes as a natural by-product of a combustion
engine. Therefore, riders must operate the power board as designed. No one should ever be towed
behind the power board while it is in operation. The engine should not be operated when the power
board is out of the water (this can cause damage to the engine from over-heating also).
CO enters through the lungs and blocks oxygen. Milder symptoms of poisoning include headache,
nausea, itching or irritated eyes and dizziness. Victims often become increasingly weak and disorient-
ed. These symptoms should not be confused with alcohol intoxication.
Individuals who suer from lung- or heart-related issues may be aected more quickly. Alcohol and
tobacco use also accelerate symptoms. For all riders, regardless of health or ingestion, note that
physical activity will also hasten CO absorption.
In the even that someone shows evidence of CO poisoning, immediately shut o motorized surf-
board or any other combustion-engine in the area. Provide fresh air, if possible, and move the victim
to an area away from the CO concentration. Provide rst aid and seek professional medical assis-
tance immediately.

14 1518 -R001/EN_part A 18-R001/EN_part A
ENGINE PREPARATION
Operation of the power board engine out of the water for more than
ten (10) seconds can result in permanent damage to the engine and ex-
haust system, (temperatures of cylinder shouldn’t be higher than 65 °C/
149°F). Such damage is not covered under the warranty.
Touching any part of a running engine, in particular any component that
is moving, can result in serious injury or death. If it is necessary to ac-
cess or touch an engine for any reason, the engine must be turned o.
EEngine also become increasingly hot with usage and can result in skin
burns if engine is not allowed to cool prior to touching it.
Never transport fuel except in D.O.T. (USA) or CE (Europe) -approved con-
tainers.
Transporting fuel in the engine or fuel tank can result in damage to Jet-
Surf™ or injury to people handling the board. Fumes from fuel are even
more volatile, explosive and generally dangerous than liquid fuel. Never
transport JetSurf™ power board with the tank inside. JetSurf™ transport
is described in detail in the chapter “TRANSPORT” page 66.
Later in this Owner’s Manual are instructions for the proper preparation and maintenance of the
power board’s engine. Be sure to read and follow these instructions.
Note also that operators should regularly verify that the engine is probably installed and rmly axed
to the engine housing. DO NOT attempt to start an engine that is not secure!
Operators and bystanders should NEVER touch any part of a running engine.
Avoid allowing any object, even small bio-degradable items (seaweed, sand, small animals...) to come
into contact with the engine. This could result in damage to the engine that would not be covered
under warranty.
Use only JetSurf™-approved (manufacturer) replacement parts. Using any other parts will void the
warranty and may adversely aect the operation and safety of the power board.
When starting the engine, ensure that individuals (especially children) are at least 33 feet/10 meters away.
The engine was designed and crafted for the JetSurf™ retail power board only. Never use
the engine for any other craft, object, projectile, or item. Such usage is expressly prohibited.
SAFETY MATTERSSAFETY MATTERS
NOTICE
WARNING
WARNING
CLOTHING
Persons in range of the power board’s engine moving parts should exercise caution to
avoid having clothing or hair come in contact. If clothing or hair become entangled in mov-
ing parts, injury may result.
Because the engine has moving parts, owners/operators should never wear loose clothing when the
engine is in operation. Straps, buckles, as well as the edges of cloth can become entangled in JetSurf™
moving parts.
If the owner/operator has long hair, it should be tied up or secured in some fashion so that the hair
cannot become entangled in the engine’s moving JetSurf™.
An injury can occur nearby the jets as a result of water inux into the body cavities. Conventional
swimwear does not protect suciently against water being forced into rectum or vagina. All the riders
must wear at least the bottom part of the neoprene suit or any other garment providing the same
protection. We recommend wearing footwear, gloves and glasses.
Helmets are a compulsory item of safety gear and must be worn at all times while riding. It is expected
that operators will, from time to time, fall o the power board, even in normal operation. Helmets
provide protection in the event the operator’s head would strike the board. Helmets are therefore a
mandatory accessory and should be manufactured to wear on the water, t properly and be relatively
lightweight. Manufacturer JetSurf™ makes no claims nor promises regarding protection, including that
aorded by helmets.
The use of an arm or leg leash is compulsory and must be used at all times while using JetSurf™.
PERSONAL FLOTATION DEVICES (PFDs)
It is the responsibility of the owner/operator to comply with any and all laws, statutes and requirements
for personal safety. American federal law requires the wearing of a U.S. Coast Guard-approved* person-
al otation device (PFD) under most circumstances. State and local laws and statutes may also vary
from federal requirements.
As JetSurf™ power boards are commonly dened as personal water craft it is essential for all users to
check with their relevant local Authorities for all information relating to the use of safety accessories.
JetSurf™ takes no responsibility for failure of users to comply with the relevant laws which apply to
the use of personal water craft in any specic location.
Authorized JetSurf™ dealers are able to assist owners and operators in ensuring that they are prop-
erly outtted for conditions and to comply with the law of the countries where JetSurf™ is used.
WARNING
* Valid for the USA

16 1718 -R001/EN_part A 18-R001/EN_part A
LAW ENFORCEMENT
When underway, operators may be required to cease manoeuvres and allow U.S. Coast Guard* or
state law enforcement personnel to come alongside. Some Countries, States and jurisdictions may
require a minimum age to operate the power board, pass a training course, and/or possess an op-
erator’s license. Requirements vary widely. If operating in a location that allows minors, such activity
should be done only under adult supervision.
Be sure to check annually regarding requirements for legal and safe operation of the power board.
UNDER THE INFLUENCE
Under no circumstances should a power board rider ever operate under the inuence of alcohol
or drugs, including prescription drugs that have potentially disorienting side eects. This can be as
dangerous as driving a car while under the inuence!
REGISTRATION
In many jurisdictions, it will not be necessary to register the power board with the state of principal
use. However, because the power board is motorized, registration may be necessary. Verify with the
state and local law enforcement entities in the area in which the power board will be used most prior
to using for the rst time.
SPEEDING/NOISE
Some areas have restrictions regarding speed related to creating waves and maximal noise restric-
tions. Operators of power boards are required to adhere to these requirements.
ELECTRONIC DEVICES
Operating the power board requires full attention. JetSurf™ strongly recommends leaving cell phones
(including waterproof models), radios, iPods, and other devices ashore during outings. The distrac-
tions can potentially lead to accidents.
JUMPS ON JETSURFTM
NEVER JUMP with the motorized power board! Damage caused due to incorrect use of your JetSurf™
(for example jumps) is not covered by the guarantee.
SAFETY MATTERSSAFETY MATTERS
* Valid for the USA
REPORTING ACCIDENTS AND INSURANCE
Federal law requires reporting of accidents in which:
- A person dies;
- A person disappears from the vessel in what appears to be a situation that could have resulted in
death or serious injury;
-A person is injured and requires medical assistance beyond minor rst aid;
- Damage to vessel and/or property that exceeds the amount stipulated by law. The total may be
lower in some jurisdictions and it is the responsibility of the owner/operator to verify;
- The power board is destroyed.
Any instance in which other vessels or persons appear in distress, power board operators are re-
quired by law to oer assistance unless doing so would result in potential danger to the power board
operator. Good Samaritan protection is provided to anyone who oers good faith assistance.
Even when others operate the power board, the owner is generally responsible for damages or
injuries that may occur. Owners must not allow any Third Party to operate the JetSurf™ without prior
instruction in correct use and operational risks. Owners are strongly encouraged to carry sucient
liability and property insurance to provide in anticipation of potential judgments in those instances.
Theft and on-shore damage are additional reasons to purchase insurance.
REFUSE AND POLLUTION
The U.S. Coast Guard* and/or relevant Authority which applies to the region where the JetSurf™ is
used provides detailed information regarding the disposal or refuse. In general, refuse, even bio-de-
gradable, should be disposed properly on-shore. If the user deduces that there are any substances
that could pollute waters leaking from the board, it should be presented to an authorised JetSurf™
dealer for repair. Pollution laws and regulations are stringent in most areas.
At no time should the power board owner and/or operator alter the engine exhaust system or fuel
system in any fashion. Doing so is both illegal and potentially dangerous.
* Valid for the USA

18 1918 -R001/EN_part A 18-R001/EN_part A
OTHER SAFETY MATTERS
Riders should:
- Be at least sixteen (16) years old or the minimum age required within the jurisdiction in which the
power board is operated. The power board was designed to be operated by adults.
- Wear appropriate safety gear especially a Helmet and Life Vest and safety leash.
- Ensure the power board is in excellent condition and ready to operate in top form. Have sucient
fuel for the outing or gear the outing to the generally expected period of time that fuel will remain,
and be sure that the ignition battery is functional and well-charged to avoid becoming stranded away
from shore.
- Avoid operation during bad weather, including but not limited to, high winds, rain that obscures
vision, warnings of impending threatening weather, high waves, or any weather in which the rider
feels at all uncomfortable.
- Do not use the power board, if the air temperature is lower than 2°C.
- Avoid operation in water that is too shallow or is brackish.
Because the power board engine is water-jet pump pro-
pelled, weeds and other ora can foul the engine intake.
If it is suspected that fouling agents or small objects have
been brought into the pump/engine system (height of water
stream coming out of engine cooling system nozzle output
will get smaller or end completely), immediately cease oper-
ation and perform a typical maintenance operation to clean
the system.
- Maintain a speed and operational method that ensures the
rider can avoid collisions with objects (above and below the
waterline), buoys, docks, shorelines and other vessels.
- Know and practice navigational rules and regulations.
- Maintain an unobstructed view at all times, particularly in
the direction the power board is moving.
- Ride singularly on the power board. Multiple people on one
power board can overload it and cause it to sink. The power
board is built with anticipation of one (1) average-sized per-
son per board.
- Never exceed the highest loading capacity.
- In addition, it is necessary for the rider to maintain line-of-sight, which means there should never be
another person in front of the rider as the outing progresses.
- Not carry aboard any item. The power board requires the rider to maintain control via the control
handle. The rider should never be distracted from control of the power board.
- Always keep the engine shut-o key with kill switch Paracord around the wrist so that when the
rider goes overboard the engine will be immediately shut down.
SAFETY MATTERSSAFETY MATTERS
WARNING
SAFE OPERATION ON THE WATER
Laws, rules, regulations and enforcement have been developed in North America and around the
world to ensure safe and proper operation of all watercraft. It is the responsibility of the owner and/
or operator to familiarize himself or herself with all applicable ordinances on the body of water upon
which the JetSurf™ power board will be operated. For operators in the United States, refer to the
website*: www.uscg.boating.org
In Canada, refer to the website**: www.tc.gc.ca/eng/marinesafety/menu.htm
Other countries have their own laws or participate in international rules. Always verify markings and
rules as they apply to any body of water on which operations will be conducted.
GENERAL PRUDENTIAL RULE
Rule 2 in the International Rules says, “In obeying and construing these rules due regard shall be
had to all dangers of navigation and collision, and to any special circumstances, which may
render a departure from the above rules necessary in order to avoid immediate danger.”
GENERAL EXPECTATIONS
Always use common sense when encountering other vessels. The power board is considered a pow-
ered watercraft and will be expected to give-way to non-powered vessels that have less maneuvera-
bility. The vessel that does not has the duty to take proper and timely action to sta out of the way of
the stand-on vessel. Normally, the give-way vessel should not cross in front of the stand-on vessel.
Always move in such a way that the stand-on operator can see the operation.
When encountering other powered vessels, there are three (3) main situations that could require
avoiding a collision:
- Meeting (approaching another vessel head on);
- Crossing (travelling across the other vessel’s path);
- Overtaking (passing or being passed by another vessel).
When meeting another vessel head on with the risk of collision, neither has right of way. Both vessels
must alter course to avoid an accident. Keep the other vessel on the port (left) side unless it is possi-
ble to clear each other by maintaining course.
When two (2) power-driven vessels cross paths with risk of collision, the vessel that views the crossing
vessel to the starboard (right) side must give way.
When overtaking, you are the give-way vessel. The other vessel is expected to maintain course and
speed. Avoid it as you clear it. When being passed by another vessel, maintain speed and direction
so that the passing vessel can clear.
In other circumstances, when preparing to go around a bend on a body of water, sound a prolonged
blast on a whistle for four (4) to six (6) seconds. Regardless of whether you hear a response, proceed
with caution.
* It applies to the USA; ** It applies to Canada

20 2118 -R001/EN_part A 18-R001/EN_part A
Under normal operation situations, stationary shing and sailing boats (stationary or moving) are
given the right of way.
Always learn about and pay attention to buoys and other markers. The Uniform State Waterway
Marker System has been devised for interior waterways in the United States. Markings may vary by
geographic location. Always consult appropriate authorities before using the power board in unfa-
miliar waters.
MEETING
When two boats are approaching
each other on the water, one has
the righta-way and is designated the
“stand-on” vessel. The other boat
must yield or give way and is desig-
nated the “give-way” vessel.
In illustration A, you are the JetSurf™
in the center. You are required to
yield to any vessel shown in the
white area (you are the “give-way”
vessel). Any vessels shown in the
shaded area must yield to you(you
are the “stand-on” vessel). If both
of you are heading directly toward
one another, illustration B, you both
must give way. You should turn right
to keep the approaching vessel to
your left or port side. This rule does
not apply if both vessels will be clear
of each other if you continue on
your set course and speed.
SAFETY MATTERSSAFETY MATTERS
A
B
OVERTAKING
If you are passing another vessel, you are the “give-way” vessel.
The other vessel is expected to maintain its course and speed and you are required to stay
out of its way until you are clear of it. If another vessel is passing you, you should maintain
your course and speed so that the overtaking vessel can steer safely around you.
CROSSING
If you and another vessel are
crossing paths close enough to risk
a collision and the other vessel is
on your right (starboard) side, you
must yield or stay out of its way.
If the other vessel is on your left
(port) side, you must maintain your
course and speed, as long as the
other vessel yields the right-a-way
to you, as it is required.
JetSurf™ cannot anticipate every circumstance that can occur in operating the power
board. The information provided is general in nature and may not apply to the location
in which you will be operating the power board. Always perform due diligence in prepa-
ration and planning for all outings, with particular attention to doing so in the safest
manner possible.

22 2318 -R001/EN_part A 18-R001/EN_part A
using a cross-head screwdriver PH 2x100 (supplied with the tools). TIGHTEN GENTLY. Please check
whether the n is tightened up, the n should not move. Fasten the other n in the same way.
MAIN FIN FASTENING
Unscrew 4 M 6x8 Allen screws from the platform – FIGURE 3. Place the main n on the platform.
Make sure the n is oriented correctly. Insert the removed screws in the openings on the main n and
fasten the n – FIGURE 4. Check for tightness – the n should allow any movement.
Keep all the screws openings for attaching ns clean, without sand and
other impurities which might damage the thread. After several rides,
lubricate the screw openings with Vaseline to prevent their corrosion.
It is strongly recommended to use all ns under all circumstances. It ensures
the maximum control of the movement of the motorized power board.
We strongly recommend removing all ns when transporting the JetSurf
™ motorized power board. The ns are delicate and are not designed to
support the power board weight on hard surface. Transporting the pow-
er board with the ns attached may result in damage to the ns and/or
power board.
FIGURE 1
FIGURE 3
FIGURE 2 FIGURE 2
FIGURE 4
RIDERIDE
3A RIDE
BEFORE YOU START
Before your rst ride without being supervised by a sales person or a technician of JetSurf, please
make sure that you have read and understood the manual supplied together with the power board.
Familiarize yourself with the laws valid for the water bodies where you intend to use your motorised
power board.
STAND AND ITS UNFOLDING
Every JetSurf™ is supplied with a light stand. The stand should be used on a solid levelled surface and
it is only used to keep the JetSurf motorized power board in a comfortable height. Use of the JetSurf
stand is strongly recommended to keep the JetSurf motorised power board above the ground, it is
intended as an aid for preparation, maintenance and cleaning of the motorized power board.
STAND ERECTION
Place all four rods parallel - FIGURE 1. Take the ends of the rods which are farther from the stand
clip and turn them gently clockwise – FIGURE 2. Then take the opposite ends of two rods (the side
where the ends of the rods are closer to the stand clip) and pull these ends apart – FIGURE 3.
Make sure that the stand is situated on the solid surface and that the power boards rests on the
stand correctly (the engine should be directly above the stand and all four rods of the stand touch
the power board).
FINS
FASTENING OF SIDE (SMALL) FINS
First unscrew the long screw which is screwed in the n. Slide the side n into the opening in the
bottom side of the board. Make sure that the ns are oriented correctly – FIGURE 1. Find the
opening in the top side of the power board (it is situated nearby the straps, above the n). Insert
the long screw you have screwed out of the side n into the opening – FIGURE 2. Fasten the n
POWER BOARD
STERN
FIGURE 1 FIGURE 2 FIGURE 3 NOTICE
CAUTION
model RACE model
Ultra Sport and
FACTORY GP

24 2518 -R001/EN_part A 18-R001/EN_part A
CHARGING OF THE ICU BATTERY
Before the ride make sure that the battery is fully charged.
When battery are being charged, tiny electric charges and potentially also
sparks may be generated. Never charge the battery when there is petrol
or its vapours present as an electric discharge could cause an explosion,
which may result in serious injury or death.
The battery power the electronic system of the motorized power board.
Correct handling of battery, mainly when they are being charged up, plays
a crucial role for their safe use. Follow the provided instructions concer-
ning the use of the battery and handling them. The failure to observe the-
se instructions may result in serious injury or death.
The control unit (ICU), starter and the electric bilge pump are powered from six or nine Li-Ion batter-
ies according to the particular model situated inside the control unit (ICU). In order to protect all the
persons in the surroundings as well as the user who is charging the battery, please pay attention to
these important steps:
– NEVER charge the battery when the engine is in operation.
– NEVER charge the battery when the ignition control unit (ICU) is ON
and the indicator is ashing.
– NEVER charge the battery when the engine of the motorized power board
is in water.
– ALWAYS wipe the charger connector dry and prevent any water from get-
ting into the charger connector.
– NEVER use the charger if the power cable is damaged mechanically
or oxidised.
– NEVER use a dierent charger other than the one specied by JetSurf™.
– ALWAYS put the dry charging connector cover back after charging.
– When charging, do not leave the charger unattended and do not expose it
to direct sun or at least cover it so that it could cool down
– Follow the manual supplied with the charger.
HOW TO CHARGE BATTERY USING A CHARGER
The charger is supplied in a protective cover. When charging, you do not have to take the charger out
of the cover, it is adapted to charging.
NEVER leave the side ns screws loose in the board during transporting
the JetSurf™, always pull them out. Similarly we recommend screwing
the main n screws into the base even without the n.
STRAPS
JetSurf™ have fully adjustable straps. They can be adjusted by pulling the loose ends of straps with
force or by means of plastic buckles. Make sure that the straps are comfortable and are not too
loose or tight.
HOSES
Check all the connections. Check also all the hoses whether they are not worn or cracked. Check for
cuts, scratches, cracks and bulges. Make sure that the hoses are not kinked or squeezed and that
there is no fuel leak.
CHECK ALL OF THE FOLLOWING:
Fuel hoses
Transparent hose of exhaust cooling
Blue cooling hoses
Drain hoses
If a tube is damaged in any way, replace it immediately and check all the other tubes whether they
are not damaged.
Make sure that all the tubes are laid correctly and fastened with clamps at a sucient distance from
the moving parts and parts with sharp edges.
ELECTRIC CONNECTIONS
Before the ride check ALL the electric connections carefully. Pay special attention to the spark plug
boot (to prevent it coming loose during the ride), correct placement of the feeding cable from the ICU
and proper fastening of all the connections. Also make sure that the cover of charging cable is properly
connected when the board is not being charged.
Before every ride, remove the spark plug and check it. Generally, for proper operation of the
power board, Jetsurf recommends changing the spark plug every 6 hours of the ride.
Check whether all the connections are fastened properly by pulling both ends slightly away from
each other. If you are not sure, we recommend disconnecting and reconnecting. The connectors are
equipped with a clip which must be pushed when being disconnected (preferably with thumb) until
it “clicks”. After the clip is released, you can disconnect the connector. To reconnect the connectors,
simply push both ends together until you can hear a click.
CONTROL HANDLE
Check the throttle trigger allowance. If the allowance is incorrect, adjust the throttle cable. Check
several times whether the throttle trigger moves smoothly from the fully open position to the fully
closed position and that it closes quickly and completely by means of a return spring.
If the throttle trigger does not return correctly, check the throttle cable line, cable adjustment and
cable damage.
RIDERIDE
CAUTION
NOTICE
WARNING
conector for
charging
marked to
red cable tie
stainless steel
conector
holder
FIGURE 1 FIGURE 2

26 2718 -R001/EN_part A 18-R001/EN_part A
If the battery is not connected or it is connected incorrectly or
if there is any other problem, an error message “CONNECTION
BREAK” will be displayed on the screen and the charger will
start beeping. Press START when asked to do so.
TIP: When the CELL button is pressed (FIGURE 7), the dis-
play will show the level of the individual cells – FIGURE 8.
7) When the battery is fully charged up, the display will read
Li-Po END and the charger will beep twice.
8) The STOP button will nish the charging process.
9) Disconnect the charging connector from the charger and
put the connector cover on back the connector holder.
10) Disconnect the charger from the source.
Fully charge battery last approximately two (2) to four (4) rides
depending on the style of riding.
Note: We recommend charging battery continuously (for ex-
ample when you have a break between the individual rides).
Repeated short charging cycles do not aect the battery life. However, in the rst 5 cycles it is
absolutely necessary to charge the battery to its full capacity and avoid rapid discharging
to the minimum level.
AFTER HAVING CHARGED THE BATTERY, NEVER FORGET TO INSERT THE ICU
CONNECTOR IN THE CONNECTOR HOLDER.
ALWAYS CHARGE THE BATTERY BEFORE AND AFTER THE RIDE. AFTER THE
RIDE, DO NOT LEAVE THE BATTERYFLAT. CHARGE THEM TO MINIMUM 50%
OF THE CAPACITY.
IN WINTER OR WHEN NOT USING JETSURF, IT IS NECESSARY TO CHARGE THE
BATTERY IN THE ICU MINIMUM ONCE IN EVERY 3 MONTHS.
BRIEF OUTLINE OF BATTERY CHARGING
MODE1: BAL. CHARGE Mode intended for charging after the last ride
of the day rides and WHEN JETSURFTM IS
CHARGED FOR THE FIRST TIME
MODE2: CHARGE Mode intended for charging between
theindividual
MODE3: STORAGE Mode intended for charging the JetSurfTM
for storage
1) Disconnect the 4-pin connector (marked with a red cable tie)
which is connected in the connector holder – FIGURE 1 and 2.
2) Connect the charger to a 12 V socket in the car or to a 110/220V
power cable.
Never charge the battery while the car is moving as there
is a danger of damage to both the charger and the ignition
control unit (ICU).
3) Connect the charger to the charging connector on the control
unit (ICU) – FIGURE 3 and 4. Never disconnect the charg-
er when charging from the ICU!!!
4) When the charger is connected to the ICU, charging options will
be displayed on the touch screen – FIGURE 5. The default set-
ting by the JetSurf manufacturer is charging of Li-Po battery which
are charged in the same way as Li-Ion battery in the ICU.
Select one of the charging modes on the display (the parameters
of the individual modes are preset by the manufacturer).
MODE1: BAL. CHARGE – it is intended for charging after the last
ride of the day. Select this mode when charging JetSurf for the rst
time. Check the default parameters preset by the manufacturer
displayed on the screen – FIGURE 6a.
MODE2: CHARGE – it is intended for charging between the individ-
ual rides. Check the default parameters preset by the manufactur-
er displayed on the screen – FIGURE 6b.
MODE3: STORAGE – it is intended for charging for storage. Check
the default parameters preset by the manufacturer displayed on
the screen – FIGURE 6c.
MODE4: DISCHARGE – discharging, this mode is not used for JetSurfTM.
5) When a mode has been selected, press the green button START.
The charger will beep and the battery charging will start. The charging
progress is displayed on the screen – FIGURE 7.
RIDERIDE
FIGURE 3 FIGURE 4
FIGURE 6b
FIGURE 6a
FIGURE 6c
FIGURE 5 FIGURE 8
FIGURE 7
4-pin female
charger
4-pin female of
charger

28
29
18 -R001/EN_part A 18-R001/EN_part A
Make sure that petrol and oil are mixed properly in the correct propor-
tion. If the proportion is not observed, the engine may get damaged.
Before every ride, make sure that the fuel tank is fastened well using a velcro. A slight sideways move-
ment after applying force is normal but it MUST NOT COME INTO CONTACT WITH ANY PART OF THE
ENGINE DURING THE OPERATION. Pay special attention to the safe distance between the gear cover
and the fuel tank and make sure they cannot come into contact.
LUBRICATION
Before the ride it is recommended to lubricate the engine with a conservation spray, e.g. MOTOREX
INTACT MX 50, mainly before riding in salt water. Sea water causes corrosion of metal parts of
the engine and if you spray these parts with a preservation spray, you will decrease the
corrosive eects of salt water.
When lubricating, pay special attention to the moving parts, such as gears (they are under the carbon
cover), shaft bearing and carburettor screws – FIGURE 1 na následující straně.
Generally, spray the whole engine.
FUEL TOP-UP
Observe all the safety instructions specied in this manual, mainly the
chapter FUEL TANK (part A, page 12–13).
NEVER add fuel into the tank which is inside the JetSurf™. Before adding
fuel, ALWAYS take the tank out.
FUEL TANK REMOVAL
1) Disconnect the second CPC coupling connecting the tube coming out of the tank to the tube going
to the carburettor – FIGURE 1. The CPC coupling has a security clip which must be pressed when
disconnected.
2) Undo the velcro on the tank – FIGURE 2.
3) Move the tank out upwards – FIGURE 3.
4) Disconnect the hose on the other side of the tank – FIGURE 4 leading to the suction hose.
FUEL MIXING
Use lead-free car petrol with the octane number 95 or higher mixed in the proportion of fty (50)
parts of fuel to one (1) part of MOTOREX OCEAN FS 2T BIO; or oil meeting these standards: NMMA
TC-W3, API TC, ISO-L-EGD: JASO FD/FC; TSI.
PETROL TO OIL
MIXTURE
50 parts of
petrol
1 part of oil
Example:
To 1 litre of petrol
add 0.02 l (20 ml) of oil
To 2 litres of petrol
add 0.04 l (40 ml) of oil
50 : 1
FIGURE 1 FIGURE 2
RIDE
RIDE
FIGURE 3
CAUTION
FIGURE 4

30 3118 -R001/EN_part A 18-R001/EN_part A
START AND FIRST RIDE
SWITCHING ON THE IGNITION CONTROL UNIT (ICU) AND STARTING THE ENGINE
NEVER start the engine in an enclosed area, such as a garage. In such places,
carbon monoxide (CO) fumes may be trapped, which can result in death or
serious injury, as described in the section Safety of this user manual.
Before switching on the ignition control unit (ICU) and starting the engi-
ne, make sure that the engine is FASTENED and that the screws holding
the engine in the holders are TIGHTENED carefully. If the engine is fas-
tened incorrectly, it can result in a serious damage to the engine and/or
fuel tank as well as the motorized power board. Such damage may lead
to a serious injury or death.
Keep your arms, legs and other body part away from all the jet inlets when
the engine is in operation. It could result in a serious injury or death.
When starting the JetSurf™, make sure that people (especially children)
are at least 10 meters/33feet away from water-jet pump.
Operation of the motorized power board engine outside water for longer
than 10 seconds can result in permanent damage to the engine and ex-
haust system. Such damage is not covered by the guarantee.
DO NOT leave JetSurf™ in direct sunlight or anywhere that would allow
its surface to rise to a temperature in excess of 65°C/149°F. Excessive
temperatures can cause damage to the engine.
Be aware that the JetSurf™ motorized power boards are not intended
or designed as swimming aids. Do not leave the motorized power board
unattended or in water without the engine running for a longer time,
there is a danger of its sinking.
Before starting, ALWAYS make sure that there is no petrol leaked any-
where in the engine compartment.
CONTROL HANDLE
It is ABSOLUTELY NECESSARY for the rider to release the control handle
when he/she loses full control of the board or balance during the ride.
Pulling the engine shut-o key from the engine shut-o switch will stop
the engine immediately. NOT PULLING THE ENGINE SHUT-OFF KEY FROM
THE ENGINE SHUT-OFF SWITCH MAY RESULT IN SERIOUS INJURY OR DEATH.
PROTECTIVE AIDS
It is necessary to use all the protective aids all the time. They include:
- Helmet
- Life jacket
- Safety leash on the leg or arm
CAUTION
NOTICE
WARNING
RIDERIDE
THE WHOLE
ENGINE

32 3318 -R001/EN_part A 18-R001/EN_part A
If the JetSurf™ is ready (the chapter Before start), you can start using it. To check whether the engine
is working and warmed-up, rst try the device out of water – BEFORE EVERY RIDE.
The JetSurfTM is cooled with water and can run on land without the water
cooling only for a limited period of time. Otherwise it can get damaged.
Therefore do not leave it started longer than necessary. To warm up the
engine, it is enough to let it run for 3-5 seconds on (and BUT NO LONGER
THAN 10 SECONDS as it can cause overheating of exhaust system and it‘s
destruction).
JETSURFTM STARTING
Note: the starting process has two stages. Read these instructions carefully in order to understand
them completely.
STAGE ONE – ICU activation
1. Insert the engine shut-o key in the engine shut-o switch placed on the upper part of the con-
trol handle for minimum 4 seconds (BUT LONGEST FOR 30 SECONDS!!!), then take the key out. The
ignition control unit (ICU) will switch on and also the other accessories (such as a bilge pump) will be
activated. The control unit activation is optically signalled by the control LED lighting and activation of
the electric bilge pump which you are able to hear (see the chapter Ignition control unit).
Note: The ICU will stay in this state for 5 minutes from the last time the engine shut-o key was
pulled out of the engine shut-o switch. Then it will switch o automatically and in order to start the
power board you will have to repeat this step.
STAGE TWO – engine start
2. Insert the key in the engine shut-o switch on the control handle a second time. In the ignition
control unit (ICU), a three-second (3 s) delay has been programmed so that the rider could get into
a safe position and hold tight the grips of the motorized power board before the engine starts. After
this short delay, the engine starter will switch on and start the engine.
Note: The running engine can be switched o by pulling the key out of the engine shut-o switch.
WARNING: THE JetSurf™ STARTS REGARDLESS WHETHER THE THROTTLE IS PRESSED OR
NOT. THE JetSurf™ THEREFORE STARTS EVEN IF THE USER DOES NOT HOLD THE THROTTLE
TRIGGER ON THE HANDLE.
TIP: To make the rst start easier, cover the
air intake of carburetor (diuser) with your hand
and in the same time accelerate. This will make
the mixture of fuel richer (this procedure replac-
es so called choke). With this procedure you can
also prevent knocking which can occur when you
are trying to start JetSurf™ after a long time. In
general, we recommend to use “choke” every-
time that you are trying to start JetSurf™ after
more than 12 hours.
BRIEF DESCRIPTION OF STARTING
1. STAGE- ICU activation
Inserting the engine shut-o key in the engine shut-o
switch for 5 seconds
You can hear the electric pump
Pulling the shut-o key out The ICU waits for 5 minutes for the key
to be inserted for the second time
2. STAGE - start
Inserting the engine shut-o key in the engine shut-o
switch
After 3 seconds the engine starts
independent of the throttle
During the time when the engine is running, check the engine operation both optically and acoustically.
Check whether the engine acceleration is correct and whether the freewheel has been adjusted cor-
rectly. If the freewheel revolutions are increasing, check the throttle cable line (adjust the freewheel, see
CARBURETTOR on page 24 part B).
WARNING! If you are not sure how to set the carburettor, contact a sales representative.
WARNING! The correct engine operation is only checked on the engine when warmed up. After the
very rst start, the engine may run irregularly. In such a case repeat the start procedure once or twice.
The rider prepared to use the JetSurf™ MUST WEAR a life jacket, safety helmet and MUST HAVE the
original JetSurf™ wrist band with the engine shut-o key attached to his/her wrist and it must be
connected with the motorized power board by means of the safety leash.
For sharp start from water it is necessary to nd a suitable place where to start riding. First it is nec-
essary to have a sucient depth from which we can start safely without damaging the bottom ns of
the vessel. The minimum depth is 50 cm. Keep in mind that after starting the engine, the rear part of
the board may sink by 10-20 cm.
Never start JetSurf™ in swimming areas. Also make sure that you have
sucient space for manoeuvring, mainly if you are a beginner. The ideal
area is 300x300 m without obstacles and with smooth water surface.
STARTING FROM THE BANK (IN SHALLOW WATER)
In order to speed up the process of starting, we recommend performing of the engine check and
warm-up (the rst start stage) on the bank and carrying the started power board to water within 5
minutes where the second stage of starting will be performed.
The following picture – FIGURE 1 shows the correct position of the rider when starting from
shallow water. The rider holds his/her JetSurf™ with both hands in such a way that with his/her more
dextrous hand he/she is able to hold the vessel and control the throttle trigger at the same time
– FIGURE 2. The rider IS STANDING next to the board, NOT LYING on the board. When
the rider is in the correct position for starting, with his/her free hand in which he/she does not have
control handle he/she can insert the engine shut-o key in the engine shut-o switch (on condition
that the ICU has been activated) – FIGURE 3.
During the three-second delay between inserting the engine shut-o key and starting of the JetSurf™,
the rider holds the throttle. After having started the JetSurf™ and its subsequent acceleration, the
rider must jump onto the JetSurf™ with his/her full weight - FIGURE 4.
RIDERIDE
WARNING

34 3518 -R001/EN_part A 18-R001/EN_part A
ATTENTION: For comfortable ride and correct functionality of the equipment it is necessary to
hold the throttle for the whole ride. It is not necessary to keep the full speed but when the speed is
not sucient, the vessel becomes unstable and more dicult to control.
After the JetSurf™ gets going, check optically the correct cooling system
operation. From the right side you should see a continuous ow of water
coming out of the cooling system (at least 30 cm high). If you cannot see
the water, stop immediately and check the vessel.
STARTING IN DEEP WATER OR AFTER FALLING DOWN
Starting in deep water happens similar to start from the bank. If after falling down the rider manages
to insert the engine shut-o key in the engine shut-o switch within 5 minutes, the engine will start
in 3 seconds (second stage of starting). The rider does not get on the board until the engine is
running. After the engine starts, it is necessary to use the engine power and pull yourself back onto the
JetSurf™ - FIGURE 5.
If it is not possible to start the JetSurf™ again af-
ter stopping on water, we do not recommend
repeating the starting procedure more
than three times. It is necessary to get the
JetSurf™ on bank and check it there.
JETSURFTM CONTROL - THROTTLE
During the very rst ride, the rider should learn
how to operate the control handle and acceler-
ate. this skill is crucial for JetSurf™. The rider
can stay in the lying or kneeling position. Only
when he/she knows how to control the throttle,
he/she can stand up.
JETSURFTM CONTROL - TURNING
The next important step is turning. You turn the board by tilting the whole vessel to one or the other side.
JETSURFTM CONTROL - RIDING
The rider may be lying or kneeling. Only when he/she is sure how to control the throttle, he/she can
stand up. Standing up is performed from the position kneeling on the engine cover.
If you want to stand up, make sure you have sucient space for manoeuvring, you are not crossing
the path of any other vessel and there is no swimmer or obstacle near your JetSurf. When standing
up, it is necessary to be riding fast enough (the board is stable and riding without bigger resistance).
The way how to stand up from kneeling down is individual.
For beginners we recommend placing rst one foot in the rear strap – left foot if you hold the control
handle in your right hand or left foot if you hold the handle in your left hand.
If you have your foot rmly in the rear strap,
place the other foot in the front strap –
FIGURE 6.
When standing up, it is necessary to keep a
constant speed, stand up gradually and not to
stop halfway through.
If the rider falls down during getting up, repeat
the whole procedure step by step. After every
fall, JetSurfTM recommend continuing straight
ride lying or kneeling for a while so that the
bilge pumps can pump out the water which
might have got into the engine compartment
during the fall.
FIGURE 1 FIGURE 2
FIGURE 5
WRONG!!! WRONG!!!
FIGURE 3 FIGURE 4
RIDE
RIDE
WARNING
FIGURE 6

36 3718 -R001/EN_part A 18-R001/EN_part A
A BRIEF LIST OF TASKS TO BE DONE BEFORE THE RIDE
Attach all the ns page 22/part A
Set the straps page 24/part A
Charge the battery in the ICU page 25/part A
Top up the fuel page 29/part A
Check the tubes of the cooling system and all the connections and tubes page 24/part A
Check whether all the connectors are connected page 24/part A
Check the spark plug boot, check the spark plug, check the spark plug boot hold-
er (safety spring) so that boot can’t get loose while riding
page 42/part A
Check the throttle control and fuel system page 24/part A
Spray thoroughly all the engine parts with MOTOREX INTACT MX 50 oil page 29/part A
Start the engine, check the engine operation and throttle control;
MAXIMUM FOR 10 seconds!!! Otherwise the engine can overheat and
destroy the exhaust system.
page 24/part A
Check the carburettor setting page 24/part A
Check the bilge pump page 27/part A
A BRIEF LIST OF THE TASKS TO BE DONE AFTER THE RIDE
Tilt the JetSurfTM and pour the water out of it page 36/part A
Start the JetSurfTM with its tip up, MAXIMUM FOR 10 seconds!!! page 36/part A
Wash the whole JetSurfTM with fresh water, including the engine compartment,
then let the engine run for about 5 seconds (MAXIMUM FOR 10 seconds)
page 36/part A
Check the exhaust end and clean it if necessary page 46/part A
Let the JetSurfTM dry page 36/part A
Spray all the engine parts thoroughly with MOTOREX INTACT MX 50 oil page 29/part A
Charge the ICU battery page 25/part A
Store your JetSurf TM with the open engine cover
Always watch the time for which you are riding in water. With full tank,
you can ride for 0.6 hours. Do not forget to have some reserve to be able
to get back to the bank. When returning back to land, please keep in mind
any potential swimmers near the bank and sucient depth of water.
JETSURFTM CONTROL – STOPPING/FALLING
If the rider wants to stop, rst he/she has to slow the JetSurfTM down before reaching the place of
stopping. As soon as the rider is suciently close to the place of stopping, he/she will remove the key
from the handle. JetSurf™ will slow down and the rider can leave the board.
If you fall down, LET GO THE THROTTLE CONTROL HANDLE IMMEDIATELY!!!
It is NECESSARY TO PULL THE ENGINE SHUT-OFF KEY FROM THE HANDLE
to stop the JetSurfTM safely.
POKUD NEBĚŽÍ MOTOR, NESTRVÁVAJTE NA PRKNĚ!
AFTER EACH RIDE, PLEASE MAKE A HEARING CHECK OF THE ENGINE COOL-
ING. IF JETSURFTM PRODUCES A DIFFERENT NOISE, PLEASE TRANSPORT IT
TO THE LAND AND CHECK IT. THE ENGINE’S COOLING OUTPUT NOZZLE
SHOULD PRODUCE A CONTINUOUS JET OF WATER OF AT LEAST 30 CM IN
HEIGHT DURING THE RIDE.
AFTER THE RIDE
As soon as the rider pulls the power board from water, lean it against something with its tip up and
wait for a while until most of the water has run out of the JetSurfTM. Place the JetSurfTM on the stand
and start it in the angle of 30 degrees with the jet pump facing down. Accelerate several times and
switch o the engine. This way you will ensure that you will get the remaining water from exhaust and
cooling system out of the board. The engine operation time should not exceed 10 seconds!!!!
To store the power board overnight, nd a freshwater source (e.g. a garden hose) and wash the inside
of the board thoroughly (be careful and prevent any water getting into the carburettor). Then let the
engine run for 5 more seconds (MAXIMUM for 10 seconds).
If the motorized power board was operated in seawater or brackish water, place a garden hose to the engine
cooling output and ush it out If the motorized power board was operated in seawater or brackish water
(water will start pouring from the jet pump).). When dried out, spray the inside of the board with oil (MOTO-
REX INTACT MX 50) and make sure that the oil gets to the jet pump bearing, gears and all the moving parts.
Check the exhaust end and clean it if necessary, chapter 6A, page 46.
Charge the ICU battery.
Leave the engine compartment lid open so that it could dry thoroughly.
WE STRONGLY RECOMMEND PERFORMING ALL THESE STEPS. NOT PER-
FORMING THESE STEPS LEADS TO SIGNIFICANT SHORTENING OF THE PROD-
UCT LIFE OR IN EXTREME CASES TO IRREVERSIBLE DAMAGE TO JETSURFTM.
RIDERIDE

38 3918 -R001/EN_part A 18-R001/EN_part A
WATER REMOVAL FROM THE FLOODED ENGINE
Although the JetSurf™ is equipped with systems for removing water from the power board, it can
happen that some water gets into the engine compartment and then it oods the engine through the
carburettor or exhaust. In such a case, the JetSurf™ will not start and it will be necessary to remove
the water from the engine.
PROCEDURE
1) First it is necessary to open the valve to let the water out of the crankshaft – FIGURE 1 – position
open and gure position closed.
2) Then it is necessary to pull the spark plug from the engine. Take the holder from the spark plug boot
- FIGURE 2 and remove the boot from the spark plug - FIGURE 3. Screw the spark plug out
using a spark plug spanner which is supplied within the accessories - FIGURE 4. Dry the spark plug
properly. If the spark plug has been in operation for more than 6 hours, it should be replaced.
3) Tilt the JetSurf™ towards the spark plug opening down (its head engine) . When the valve is open and
spark plug screwed out, start turning the shaft with your hand. While turning the shaft, you should see
water coming out of the open valve and head engine. Continue until water stops coming out.
4) If no more water is coming out of the engine head, place and keep the key on the indicator – FIG-
URE 5. Continue turning the engine until only fuel is splashing out of the spark plug opening (fuel
and water form a white emulsion). When the shut-o key is placed, the starter starts turning without
ignition on the spark plug
ATTENTION: The fourth point can only be
performed if most of the water has already
been pumped out manually or otherwise
there is a danger of damage to the start-
er. Do not turn the starter longer than 10
seconds.
5) Screw the spark plug back in following the in-
structions in the section Spark plug.
6) Put the spark plug boots back in place and se-
cure it with a boot holder.
7) Close the bottom drain valve – FIGURE 1 –
position CLOSED.
9) Start the engine for maximum 5-10 seconds
to make sure that it works correctly. The engine
should not be run without cooling for more than
10 seconds (temperatures of cylinder shouldn’t
be higher than 65°c/147°F) or otherwise it can get
overheated and damage.
Never insert the engine shut-o key in the handle when the spark plug
is out.
Make sure that the boot covers the spark plug completely when mounted.
RIDERIDE
NOTICE
FIGURE 2
FIGURE 1
OPEN
VALVE
CLOSED
VALVE
FIGURE 3 FIGURE 4
FIGURE 5FIGURE 5
FIGURE 5
indicator on the FACTORY GP
and RACE models
indicator on the ULTRA SPORT model