Yamaha YFM80RX User manual

This A
MANUAL DEL PROPIETARIO
5TH-28199-66
YFM80RX
MANUEL DU PROPRIÉTAIRE
OWNER’S MANUAL

PRINTED IN JAPAN
2007.05-0.3x1 !
(E,F,S)
YAMAHA MOTOR CO., LTD.

This A
5TH-28199-66-E0
YFM80RX
OWNER’S MANUAL

EBU17170
INTRODUCTION
EBU17260
Congratulations on your purchase of the Yamaha YFM80RX. This ATV represents the result of many years
of Yamaha experience in the production of fine sporting, touring, and pacesetting racing machines. With the
purchase of this Yamaha, you can now appreciate the high degree of craftsmanship and reliability that have
made Yamaha a leader in these fields.
This manual will provide you with a good basic understanding of the features and operation of this ATV.
This manual includes important safety information. It provides information about special tech-
niques and skills necessary to ride the ATV. It also includes basic maintenance and inspection proce-
dures. If you have any questions regarding the operation or maintenance of your ATV, please consult a
Yamaha dealer.
AN IMPORTANT SAFETY MESSAGE:
●
READ THIS MANUAL COMPLETELY BEFORE OPERATING YOUR ATV. MAKE SURE YOU UNDER-
STAND ALL INSTRUCTIONS.
●
PAY CLOSE ATTENTION TO THE WARNING AND CAUTION LABELS ON THE ATV.
●
THIS ATV, AND ANY OTHER ATV OVER 70 cc, SHOULD NOT BE OPERATED BY A CHILD UNDER
12 YEARS OF AGE.
AN IMPORTANT NOTE TO PARENTS:
This ATV is not a toy. Before you let your child ride this ATV, you should understand the instructions and
warnings in this Owner’s Manual. Then be sure your child understands and will follow them. Children differ
in skills, physical abilities and judgment. Some children may not be able to operate an ATV safely. Parents
should supervise their child’s use of the ATV at all times. Parents should permit continued use only if they
determine that the child has the ability to operate the ATV safely.

Your ATV was delivered with an adjustable speed limiter and also with an air intake restrictor plate. Yamaha
recommends that all beginners start off with the speed limiter screw turned in and the air intake restrictor
plate installed to limit the amount of speed available while they learn. The limiter screw may be gradually
turned out to increase maximum speed as the beginner becomes more familiar with operating the ATV. Par-
ents should decide when to adjust the ATV for more power as their youngster’s riding skills improve. Once
the ATV rider can operate with skill at the top speed permitted by adjusting the speed limiter alone, the air
intake restrictor plate can be removed. Since removal of this plate will result in a significant increase in pow-
er, turn the speed limiter completely back in again; adjust it out in stages as you did before.
If your child is a beginner or is inexperienced, he or she should take a training course.

EBU17330
IMPORTANT MANUAL INFORMATION
EBU17341
FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS IN-
JURY OR DEATH.
Particularly important information is distinguished in this manual by the following notations:
* Product and specifications are subject to change without notice.
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED!
Failure to follow WARNING instructions could result in severe injury
or death to the ATV operator, a bystander, or a person inspecting or
repairing the ATV.
A CAUTION indicates special precautions that must be taken to avoid
damage to the ATV.
A NOTE provides key information to make procedures easier or clearer.
WARNING
CAUTION:
NOTE:

EBU17350
IMPORTANT NOTICE
EBU17370
Welcome to the Yamaha world of motor sports!
This ATV is designed and manufactured for use on UNPAVED surfaces only. It is unsafe to operate this
ATV on any paved surface, paved street, paved road or motorway.
Please check your local riding laws and regulations before operating this ATV.
EBU17390
YFM80RX
OWNER’S MANUAL
©2007 by Yamaha Motor Co., Ltd.
1st edition, May 2007
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan.

EBU17420
TABLE OF CONTENTS
SAFETY INFORMATION .............................. 1-1
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 2-1
DESCRIPTION .............................................. 3-1
Left view ..................................................... 3-1
Right view................................................... 3-1
Controls and instruments ........................... 3-2
INSTRUMENT AND CONTROL
FUNCTIONS .................................................. 4-1
Main switch ............................................... 4-1
Indicator light ............................................. 4-1
Handlebar switches ................................... 4-2
Throttle lever ............................................. 4-2
Speed limiter and air intake restrictor
plate ........................................................ 4-3
Front brake lever ....................................... 4-4
Brake pedal and rear brake lever .............. 4-5
Parking brake ............................................ 4-6
Shift pedal ................................................. 4-6
Fuel tank cap ............................................. 4-7
Fuel ........................................................... 4-7
Fuel cock ................................................... 4-8
Choke ...................................................... 4-10
Seat ......................................................... 4-10
PRE-OPERATION CHECKS ..........................5-1
Pre-operation check list ............................. 5-1
Fuel ............................................................ 5-3
Engine oil ................................................... 5-3
Final gear oil .............................................. 5-3
Front and rear brakes ................................ 5-3
Throttle lever .............................................. 5-4
Tires ........................................................... 5-4
Measuring the tire pressure ....................... 5-5
Tire wear limit ............................................ 5-6
Chassis fasteners ...................................... 5-6
Instruments, lights and switches ................ 5-6
Battery ....................................................... 5-6
OPERATION...................................................6-1
Starting a cold engine ................................ 6-1
Starting a warm engine .............................. 6-3
Shifting ....................................................... 6-3
Engine break-in .......................................... 6-5
Parking ....................................................... 6-5
Parking on a slope ..................................... 6-6
Accessories and loading ............................ 6-7

RIDING YOUR ATV ...................................... 7-1
GETTING TO KNOW YOUR ATV.............. 7-2
RIDE WITH CARE AND GOOD
JUDGEMENT ...........................................7-2
BE CAREFUL WHERE YOU RIDE............ 7-9
TURNING YOUR ATV ............................. 7-13
CLIMBING UPHILL .................................. 7-14
RIDING DOWNHILL................................. 7-17
CROSSING A SLOPE.............................. 7-18
CROSSING THROUGH SHALLOW
WATER ..................................................7-19
RIDING OVER ROUGH TERRAIN .......... 7-20
SLIDING AND SKIDDING........................ 7-21
WHAT TO DO IF... ................................... 7-22
WHAT TO DO... ....................................... 7-22
PERIODIC MAINTENANCE AND MINOR
REPAIR.......................................................... 8-1
Owner’s manual and tool kit ...................... 8-1
Periodic maintenance chart for the
emission control system .......................... 8-3
General maintenance and lubrication
chart ........................................................ 8-5
Checking the spark plug ............................ 8-8
Engine oil .................................................. 8-9
Final gear oil ............................................ 8-12
Cleaning the air filter element ................. 8-13
Removing the air intake restrictor plate ... 8-17
Cleaning the spark arrester ..................... 8-17
Adjusting the carburetor ........................... 8-18
Adjusting the engine idling speed ............ 8-18
Checking the throttle cable free play ....... 8-19
Timing chain ............................................ 8-20
Valve clearance ....................................... 8-20
Checking the front and rear brake
shoes .....................................................8-20
Adjusting the front brake lever free
play ........................................................8-21
Adjusting the rear brake lever and brake
pedal free play .......................................8-23
Adjusting the clutch free play ................... 8-26
Checking and lubricating the cables ........ 8-26
Checking and lubricating the front and
rear brake levers ....................................8-27
Checking and lubricating the brake and
shift pedals .............................................8-28
Checking the wheel hub bearings ............ 8-28
Lubricating the front knuckle pivots ......... 8-28
Lubricating the steering shaft ................... 8-28
Battery ..................................................... 8-29
Replacing the fuse ................................... 8-31
Removing a wheel ................................... 8-32
Installing a wheel ..................................... 8-33
Troubleshooting ....................................... 8-33
Troubleshooting chart .............................. 8-35
CLEANING AND STORAGE ..........................9-1
Cleaning ..................................................... 9-1

Storage ...................................................... 9-2
SPECIFICATIONS ...................................... 10-1
CONSUMER INFORMATION ...................... 11-1
Identification numbers ............................. 11-1

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EBU17430
SAFETY INFORMATION
SAFETY INFORMATION
EBU17622
AN ATV IS NOT A TOY AND CAN BE HAZARD-
OUS TO OPERATE.
An ATV handles differently from other vehicles, in-
cluding motorcycles and cars. A collision or roll-
over can occur quickly, even during routine
maneuvers such as turning and riding on hills or
over obstacles, if you fail to take proper precau-
tions.
SEVERE INJURY OR DEATH can result if you do
not follow these instructions:
●
Read this manual and all labels carefully and fol-
low the operating procedures described.
●
Never operate an ATV without proper training or
instruction.
●
Always follow the age recommendation:
– A child under 12 years old should never oper-
ate an ATV with engine size greater than 70 cc.
– A child under 16 years old should never oper-
ate an ATV with engine size greater than 90 cc.
●
Never allow a child under age 16 to operate an
ATV without adult supervision, and never allow
continued use of an ATV by a child if he or she
does not have the abilities to operate it safely.
●
Never carry a passenger on an ATV.
●
Always avoid operating an ATV on any paved
surfaces, including sidewalks, driveways, park-
ing lots and paved streets.
●
Never operate an ATV on any paved street,
paved road or motorway.
●
Watch carefully for other vehicles when operat-
ing on unpaved public streets or roads. Make
sure you know your country’s laws and regula-
tions before you ride on unpaved public streets
or roads.
●
Never operate an ATV without wearing an ap-
proved motorcycle helmet that fits properly. You
should also wear eye protection (goggles or face
shield), gloves, boots, a long-sleeved shirt or a
jacket, and long pants.
●
Never consume alcohol or drugs before or while

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operating this ATV.
●
Never operate at speeds too fast for your skills
or the riding conditions. Always go at a speed
that is proper for the terrain, visibility, operating
conditions, and your experience.
●
Never attempt wheelies, jumps, or other stunts.
●
Always inspect your ATV each time you use it to
make sure it is in safe operating condition. Al-
ways follow the inspection and maintenance
procedures and schedules described in this
manual.
●
Always keep both hands on the handlebars and
both feet on the footrests of the ATV during op-
eration.
●
Always go slowly and be extra careful when op-
erating on unfamiliar terrain. Always be alert to
changing terrain conditions when operating the
ATV.
●
Never operate on excessively rough, slippery or
loose terrain until you have learned and prac-
ticed the skills necessary to control the ATV on
such terrain. Always be especially cautious on
these kinds of terrain.
●
Always follow proper procedures for turning as
described in this manual. Practice turning at low
speeds before attempting to turn at faster
speeds and never turn at excessive speeds.
●
Never operate the ATV on hills too steep for the
ATV or for your abilities. Practice on smaller hills
before attempting larger hills.
●
Always follow proper procedures for climbing
hills as described in this manual. Check the ter-
rain carefully before you start up any hill. Never
climb hills with excessively slippery or loose sur-
faces. Shift your weight forward. Never open the
throttle suddenly or make sudden gear changes.
Never go over the top of a hill at high speed.
●
Always follow proper procedures for going down
hills and for braking on hills as described in this
manual. Check the terrain carefully before you
start down any hill. Shift your weight backward.
Never go down a hill at high speed. Avoid going
down a hill at an angle that would cause the ve-
hicle to lean sharply to one side. Go straight
down the hill where possible.
●
Always follow proper procedures for crossing
the side of a hill as described in this manual.
Avoid hills with excessively slippery or loose sur-
faces. Shift your weight to the uphill side of the
ATV. Never attempt to turn the ATV around on
any hill until you have mastered the turning tech-
nique described in this manual on level ground.

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Avoid crossing the side of a steep hill if possible.
●
Always use proper procedures if you stall or roll
backwards when climbing a hill. To avoid stall-
ing, use the proper gear and maintain a steady
speed when climbing a hill. If you stall or roll
backwards, follow the special procedure for
braking described in this manual. Dismount on
the uphill side or to a side if pointed straight up-
hill. Turn the ATV around and remount, following
the procedure described in this manual.
●
Always check for obstacles before operating in a
new area.
●
Never attempt to operate over large obstacles,
such as large rocks or fallen trees. Always follow
proper procedures when operating over obsta-
cles as described in this manual.
●
Always be careful when skidding or sliding.
Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth
terrain. On extremely slippery surfaces, such as
ice, go slowly and be very cautious in order to re-
duce the chance of skidding or sliding out of con-
trol.
●
Never operate an ATV in fast flowing water or in
water deeper than that recommended in this
manual. Remember that wet brakes may have
reduced stopping ability. Test your brakes after
leaving water. If necessary, apply them several
times to let friction dry out the linings.
●
Always use the size and type of tires specified in
this manual.
●
Always maintain proper tire pressure as de-
scribed in this manual.
●
Never modify an ATV through improper installa-
tion or use of accessories.
●
Never exceed the stated load capacity for an
ATV. Cargo should be properly distributed and
securely attached. Reduce speed and follow in-
structions in this manual for carrying cargo or
pulling a trailer. Allow greater distance for brak-
ing.
WARNING
EWB00061
●
Always turn off the engine when refueling.
●
Do not refuel right after the engine has been
running and is still very hot.
●
Do not spill gasoline on the engine or ex-
haust pipe/muffler when refueling. Never re-
fuel while smoking, or in the vicinity of
sparks, open flames, or other sources of ig-
nition such as the pilot lights of water heat-
ers and clothes dryers. Gasoline can catch

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fire and you could be burned.
●
When transporting the ATV in another vehi-
cle, be sure it is kept upright and that the fuel
cock is in the “OFF”position. Otherwise, fuel
may leak out of the carburetor or fuel tank.
●
Gasoline is poisonous. If you should swal-
low some gasoline or inhale a lot of gasoline
vapor, or get some gasoline in your eyes,
seek medical help immediately. If gasoline
spills on your skin, wash with soap and wa-
ter. If gasoline spills on your clothing,
change your clothes.
WARNING
EWB00070
Always operate your ATV in an area with ade-
quate ventilation. Never start or run the engine
in a closed area. Exhaust fumes are poisonous
and may cause loss of consciousness and
death within a short time.

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EBU17660
LOCATION OF THE WARNING AND SPECIFICATION LABELS
EBU27150
Read and understand all of the labels on your ATV. These labels contain important information for safe and
proper operation.
Never remove any labels from your ATV. If a label becomes difficult to read or comes off, request a replace-
ment label from your Yamaha dealer.
1
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For Europe
GB
D
E
F
I
NL
P
S
Before you operate this vehicle,
read the owner’s manual.
Lesen Sie die Bedienungsanleitung
bevor Sie dieses Fahrzeug fahren.
Antes de conducir este vehículo,
lea el Manual del Propietario.
Lire le manuel du propriétaire avant
d’utiliser ce véhicule.
Prima di usare il veicolo,
leggete il manuale di istruzioni.
Voor het gebruik van dit voertuig
de handleiding met aandacht lezen.
Antes de utilizar este veículo,
leia o manual do proprietário.
Innan du kör detta fordon,
läs handboken.
5FK-21568-00
5
GB
D
E
F
I
NL
P
S
Set with tires cold.
Bei kalten Reifen.
Ajuste con los
neumticos en fro.
Pneus  froid.
Impostare a pneumatici
freddi.
Wanneer de banden
koud zijn.
Regular com pneus
frios.
Stll in med kalla dck.
20 kPa
0.20 kgf/cm2
2.9 psi
20 kPa
0.20 kgf/cm2
2.9 psi
5YF-21696-M0
YAMAHA MOTOR CO., LTD.
SHIZUOKA JAPAN
p
4GB-2155A-00
5FK-2151H-00
<12
5NE-21697-00
123
4

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For Oceania
WARNING
IMPROPER TIRE PRESSURE OR OVERLOADING CAN
CAUSE LOSS OF CONTROL.
LOSS OF CONTROL CAN RESULT IN SEVERE
INJURY OR DEATH.
OPERATING TIRE PRESSURE: Set with tires cold
9
Recommended : FRONT : 20 kPa, {
0.20 kgf/cm2}2.9 psi
REAR
: 20 kPa, {
0.20 kgf/cm2}2.9 psi
9 Minimum
: FRONT : 17 kPa, {
0.17 kgf/cm2}2.5 psi
REAR
: 17 kPa, {
0.17 kgf/cm2}2.5 psi
9 Never set tire pressure below minimum.
It could cause the tire to dislodge from the rim.
LOADING
9 Maximum Vehicle Load :95 kg, (209 lbs).
Includes weight of operator, cargo and accessories.
4EM-21696-11
1
Improper ATV use can result in SEVERE
INJURY or DEATH.
ALWAYS USE NEVER USE NEVER CARRY NEVER USE
AN APPROVED ON PUBLIC PASSENGERS WITH DRUGS
HELMET AND ROADS OR ALCOHOL
PROTECTIVE
GEAR
NEVER operate :
9 without proper training or instruction.
9 at speeds too fast for your skills or
the conditions.
9 on public roads-a collision can occur
with another vehicle.
9 with a passenger-passengers affect balance
and steering and increase risk
of losing control.
ALWAYS :
9use proper riding techniques to avoid
vehicle overturns on hills and rough terrain
and it turns.
9 avoid paved surfaces-pavement may
seriously affect handling and control.
LOCATE AND READ OWNER'S MANUAL.
FOLLOW ALL INSTRUCTIONS AND WARNINGS.
5FE-21568-11
WARNING
UNDER
12
Operating this ATV if you are under
the age of 12 increases your chance
of severe injury or death.
NEVER permit children under age 12
to operate this ATV.
Adult supervision required for children
under age 16 .
WARNING
NEVER ride as a
passenger.
Passengers can cause
a loss of control,
resulting in SEVERE
INJURY or DEATH.
4EM-21697-31
5FE-2151H-01
23
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EBU17680
DESCRIPTION
EBU17690
Left view
EBU17700
Right view
1. Choke
2. Fuel cock
3. Rear wheel
4. Footrest
5. Shift pedal
6. Front wheel
2
654 3
1
1. Spark arrester
2. Seat
3. Brake pedal
4. Footrest
2
1
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EBU17712
Controls and instruments
NOTE:
The ATV you have purchased may differ slightly
from the figures shown in this manual.
1. Rear brake lever
2. Parking brake
3. Neutral indicator light
4. Front brake lever
5. Throttle lever
6. Main switch
7. Fuel tank cap
8. Handlebar switches
123 4
5
6
7
8