Betamotor MINICROSS R150 4T User manual

R150 4T Minicross
Service Manual
Holtvej 8-10, Høruphav, 6470 Sydals
Telefon: [phone]
Fax: [phone]
[email protected] · www.scanmi.dk
CVR: 27 73 31 07
www.betamotor.dk
Juli 2011
Manualen er skre-
vet til den tidligere
R125 4T Minicross.
Det kan forekom-
me små afvigelser.

2
INFORMATIONS
ATTENTION
After the first training hour, check all the tightenings and
in particular manner:
• Footboard supports
• Shock absorber cover
• Wheel rims
• Shock absorber
• Engine bolts and nuts
• Crown

3
INFORMATIONS
REMEMBER THAT
The means you own is not a toy,
you must use it with competence,
attention and respect towards the
others and towards yourself.
Please always wear the advised
apparels, the helmet (well closed),
the suitable glasses, gloves and
shoes.
Do not try to show to yourself
and to the others your driving
capabilities.
WARNING
The vehicle must be in the
proportions of the driver ’s sizes,
the person must be able to
comfortably lay his feet on the
round when he’s sitting on the
saddle.
The vehicle was designed for a
driver with a weight not higher than
75 kg.
The vehicle, if used in a non correct
way without paying attention to
the I manual’s indication can
cause you serious hurts, permanent
and/or even mortal ones.
THE MANUAL
First, this must be carefully read
by an adult who afterwards must
inform and train the minor to
correctly use the Minicross. The
minor, if he can, must anyway read
the manual to feel responsible.
This manual contains useful
information for the use and
maintenance of the Minicrossand
the indications in order to keep it
always at the top of its efficiency,
so it is important to read this
manual and learn the advise
and suggestions that we feel are
important for you to have.

4
INFORMATIONS
BETAMOTOR S.p.A. reserves the right
to change the data and features
described in this manual and to
modify its products at any time.

5
INFORMATIONS
Symbols ........................................................6
Description ...................................................6
Safety, advice and recommandations ....7
Ecologic drive ............................................12
SECTION 1: GENERAL INFORMATION
Main parts ..................................................14
Vehicle identification data ......................15
Plates on the vehicle ...............................16
Hand drive controls ...................................17
Technical data ..........................................18
Electrical diagram ....................................19
SECTION 2: OPERATION AND USE
Checks and maintenance
before and after use ................................22
How to fuel up into the Minicross ...........23
How to stock and manage fuel ..............25
Recommended lubricants and liquids ...26
Breaking in .................................................27
Startup ........................................................28
SECTION 3: MAINTENANCE AND CHECKS
Maintenance, description .......................30
Maintenance and checking to perform .......31
Gearbox oil ................................................32
Brake pump oil ..........................................33
Air filter ........................................................34
Spark plug ..................................................35
Brakes .........................................................36
Checks after cleaning ..............................37
Maintenance schedule ............................38
How to transport the vehicle ...................39
How to dispose the vehicle .....................39
Suitable apparels ......................................39
SECTION 4: ADJUSTMENTS
Adjustment of brakes ................................42
Adjustment of clutch ................................43
Adjustment of gas clearance ..................43
Adjustment of idling speed ......................44
Adjustment forks ........................................45
Check and adjustment of steering gear ...46
Tightening the chain .................................47
Adjustment of rear shock absorber ........48
SECTION 5: WHAT TO DO IN AN EMERGENCY
Troubleshooting .........................................50
ALPHABETICAL INDEX
Index ...........................................................53

6
INFORMATIONS
WARNING
The guarantee is considered null
and the manufacturer is released
of all responsibility in the case of
any intervention carried out by
unauthorized personnel, technical
modifications and/or tampering
carried out on the Minicross during
the guarantee period, or if non
original spare parts are used.
Always wear your crash
helmet, the suitable suit, shoes
and glasses for a motorbiker
and don’t go over your capa-
bilities. Being careful means
being intelligent.
SYMBOLS
SAFETY/WARNING
If the parts indicated with this
symbol are not respected this could
lead to danger for the driver.
VEHICLE INTEGRITY
If the parts indicated by this symbol
are not respected, this can lead to
serious damage to the vehicle and
to the guarantee being null.
SAFEGUARDING
THE ENVIRONMENT
Behaviour to be adopted in order
not to damage nature.
PROTECTION DEVICES
Use the protection devices shown.
BE INFORMED
Important information for the safety
of both owner and vehicle
DESCRIPTION
• This manual is Your guide to the
use and simple maintenance of
the Minicross.
• We suggest that you follow
very closely the advise herewith
contained because the good
working order and durability in
time of the Minicross depend
on its correct use and on the
methodical application of the
maintenance rules mentioned.
• We recommend that You read
this “MANUAL” carefully in all its
parts before carrying out any USE
operation or small MAINTENANCE,
to be carried out always and in
any case with the help of an adult
and under adult supervision.
• In case of loss or deterioration
of this manual it is necessary to
ask your dealer directly for a
new copy.

7
INFORMATIONS
SAFETY, ADVICE AND
RECOMMANDATIONS
• Make an adult teach you how to
correctly use your Minicross:
A. Progressive speeding up
modalities.
B. Deceleration.
C. Braking.
D. How to behave correctly
during the use of the means.
E. Read this manual along with
an adult.
F. Proper use of gears.
Do not let aliens approach to the
means driving when this is stopped
on the stand. Danger of burning
and falls of the means.
• Do not seat and make nobody
seat on the cross-bike when this
is stopped and is laid on the
stand.
• If you wear sight glasses let an adult
inspect they are clean and suitable to
be used when driving the means.
This Minicross has been
designed to carry a
maximum weight of 75
Kg. It is forbidden to carry
passengers.
• Always keep your motorcycle in
perfect working order. This will
help you to keep it for a longer
time, at its top efficiency and
ready to satisfy your desire for
fun.
Please remember to always
use the helmet, suitable gloves,
sunglasses and garments to
drive the means. The apparel
must be in leather with
support patches on knees
and elbows.
Never drive with naked feet.
WARNING
Other operations that are not
described in this manual require
the use of special equipment and
technical know-how. Therefore
we recommend that you go to a
specialized garage.

8
INFORMATIONS
Always tell an adult
if you notice anything
strange while riding; for
your safety, and to keep
your Minicross in good
condition, it is important
to have even the smallest
noise checked out.
The vehicle must always be used
in the presence of a responsible
adult.
Before starting up always
check the brakes and the
state and pressure of the tyres,
the functioning of the gas
throttle and of the fuel pipe
integrity.
Any alteration or modification
of the Minicross made to the
original purchase makes the
vehicle dangerous because
it will no longer be in
conformity.
• In case small part should detach
from the saddle or metal parts or
plastic ones do not swallow and
do not bite and in any case call
for an adult to repair it.
• When you start, make sure that
no people are nearby and that
the children that are present, are
kept at the right distance and
under the control of an adult.
• Always follow the indications by
an adult that is super-visioning
how you are using the means.
• Minicross is not equipped with a
stationing stand so please make
sure that you have stopped it in
a suitable area (in flat and not
in a slant).
• To park the vehicle (when getting
off) turn off the engine, pull out
the kickstand, and make sure it
is firmly resting on the ground.
Before riding away, always make
sure that the kickstand is all the
way up (or down, depending on
the model).
• If the Minicross is stopped on
the stand the motor must be
switched off.
WHERE TO USE THE MINICROSS
• Remember that the use of this
motorcycle is allowed only in
private areas.
Where however the ordinary
circulation is not allowed

9
INFORMATIONS
This vehicle is not authorized for
use on public roads.
Do not make races or competi-
tions.
Don’t start the engine in closed
places.
• Do not drive close to rivers and
do not cross water even if not
too deep.
HOW TO BEHAVE DURING THE
DRIVING
• Do not speak on the mobile
phone when driving, even if you
wear an earphone.
• Only drive with sufficient light
for your safety and the other’s
one.
Do not drive at night.
Always drive gripping tightly
the handles at the side of
the handlebars, and drive
according to your capabilities
and with care, to avoid
danger both to yourself and
to others.
• Do not wander: always look
in front of you During the
driving, your feet must always be
comfortably laid on the special
pedal cranks.
• On dirt roads or on the wet don’t
brake completely and in any
case use both brakes in order
to spread the braking action on
two wheells.
Never lock the front wheel.
• Do not start driving if you do not
feel in perfect health conditions,
this might cause a reduction in
the reflex promptness and/or
a decrease in the physical
capabilities this causing danger
situations for yourself and for the
others.
• Always proceed at speeds that
are suitable for any kind of ground
and for your capabilities.
• Always proceed at speeds that
can permit to you to stop in safety
conditions on every round and
road conditions.
• Start braking with sufficient
distance from obstacles so that
you must not make any sudden
operations that may prejudge
the means control.
• Remember to release the gas
before braking and if the vehicle
stops, use the clutch first..

10
INFORMATIONS
• Go slow before facing and closing
the curves and variations of the
kind of round.
• If you use the Minicross along with
other friends that are also driving
a Minicross please remember
to:
- ALL go in the same direction.
- Do not make competitions
- Never proceed side by side.
- Never talk to other drivers during
the driving.
- Drive carefully.
- Keep safety distance > 5 m
from the Minicross you have in
front of you and from the others
that you have in front of you
or that accidentally should find
on your sides.
ON MINICROSS YOU CANNOT TAKE
• Do not wear flying garments,
scarves, necklaces or other
objects with chains and/long
laces. Do not wear slippers or
clogs.
• Do not drive with objects in
your pocket or hanged on your
neck.
• Do not drive by holding in your
hand or mouth any kind o
object.
• Do not take the mobile phone or
other electronic tools.
• Passengers or small things.
HOW TO PARK THE MINICROSS
After having used the Minicross
please remember:
• To park it in a safe way, on a flat
surface and with the stand well
entered.
• When you stop or you must park
the Minicross, before getting off,
turn the motor off.
• Park it in safe places with no
high or dried grass, far from
inflammable material that might
touch the warm parts of the
mufflers.
• Do not leave it unattended if
nearby there may be some small
children.
• When you move the Minicross by
hand please remember to well
catch the handlebar throttles;
incline towards you the means
and go on carefully. Remember
to handle by hand the Minicross
only when the motor is cold and
off.
• Before putting it in the garage
make all the warm parts get cold
and make sure that the fuel cock
and the tank plug are closed.

11
INFORMATIONS
• Do not rest the vehicle on its side,
and be sure to use the kickstand
only on firm ground (not sand
or mud).
HOW TO CORRECTLY USE THE
VEHICLE
During the driving it is absolutely
forbidden to:
• Lay feet on the ground during the
running, even at slow speeds.
• Get off from the vehicle when
moving.
• Get off from the vehicle when
moving.
• Consume foodstuff or drinks
during the driving.
• Read or write.
• Use the mobile phone or
earphones to listen to music.
• Drive on grounds or roads that
are excessively loose or stony or
with deep holes.
• Drive in the presence of
dangerous differences in the
ground height (gorges, slopes
and descents with high slant).
• Enter grounds of which you do
not know the features.
• Drive under drunk condition or
however under the effect of drugs
or medicines that may reduce
the reaction speed, change
the state of conscience, the
capability of judging or reduce
the physical force.
• Drive in non perfect physical
and/or conditions.
• Say hallo to anyone or distract
to look around so loosing of sight
of your way.
• Drive if you feel asleep.
• Drive in a non neat way or in
strange positions or laid on the
motorbike during the driving.
• Use your feet to break.
• Use the vehicle to make jokes
and do not make jokes during
the driving.
• Do not make sudden steering.
Use the Minicross only:
• When a responsible adult has
suitably informed you on the use
of the means and on the norms
of behavior and safety.
• When a responsible adult has
checked and esteemed your
capability at driving and
managing the vehicle.

12
INFORMATIONS
ECOLOGIC DRIVE
The noise and the pollution
of every vehicle depends on
how it is driven.
We strongly recommend you
to drive steadily, without
strong acceleration and
deceleration.
During off road use do not
damage the environment,
avoid noise and everything
that can disturb persons and
animals.
Use a sport drive only on race
circuits.
• If you have the full control of
the means even when this is
stopped and you can steadily
put both feet on round while
staying comfortably seated on
the saddle.
• After having worn the suitable
garments (motor-biker shoes and
suit with leather reinforcement
patches) and the protection
devices (glasses, helmet, motor-
biker leather gloves).
• If you can easily action the brake
levers and the gas throttle and
you have well understood which
lever operates the front brake
and which one the rear brake.
• If you can easily use the gas
throttle and you have well
understood its working. If you
rotate the motor towards yourself
it accelerates, if you release it,
this decelerates.
• In absence of persons and
animals, the position of which
you cannot keep under control
or that may suddenly come out
from bushes and/or things hiding
them.
• From a person at a time, you
cannot transport passengers,
animals or things on board.
• Carefully execute the checking
operations before departure see
“maintenance section”.

13
SECTION 1: GENERAL INFORMATION
INDEX
MAIN PARTS
VEHICLE IDENTIFICATION DATA
PLATES ON THE VEHICLE
HAND DRIVE CONTROLS
TECHNICAL SPECIFICATIONS
ELECTRICAL DIAGRAM

14
SECTION 1: GENERAL INFORMATION
MAIN PARTS
1 Gasoline tank plug
2 Air filter
3 Stand
4 Fuel tap
5 Fuel tank
6 Kick-starter
7 Silencer
8 Rear brake pedal
9 Fork
10 Saddle
11 Rear mudguard
12 Front mudguard
13 Big fork
14 Muffler 6
74
8
12
14
5
1
23
9
11
13
10

15
SECTION 1: GENERAL INFORMATION
VEHICLE IDENTIFICATION
DATA
Frame identification
The identification data A are
stamped on the steering tube r.h.
side.
Motor identification
Motor identification data B are
stamped on the rear part of the
engine assembly.
A
B

16
SECTION 1: GENERAL INFORMATION
PLATES ON THE VEHICLE
1 Danger of burning
2 Obligation to use gloves
3 Obligation to use the helmet
4 Obligation to use motor-biker
shoes
5 Obligation to use motor-biker
glasses
6 Obligation to use the motor-
biker suit
7 Danger of organs in
movement
8 Danger of fuel tanking with
warm motor or motor on.
9 Max admissible load
10 CE Plate
8
4
9
5
7
1
10
3
26
1

17
SECTION 1: GENERAL INFORMATION
HAND DRIVE CONTROLS
1 Front brake lever
2 Gas throttle
3 Clutch lever
4 Engine stop push button
5 Rear brake pedal
1
2
3
4
5

18
SECTION 1: GENERAL INFORMATION
TECHNICAL DATA
Vehicle weight
• ready to operate (unfueled) .....................61 (kg)
• allowed load ................................................75 (kg)
Dimensions
• total length ...............................................1630 mm
• total width ...................................................740 mm
• total height .................................................980 mm
• pitch 1140 mm
• saddle height .............................................760 mm
• clearance from ground ............................265 mm
Filling capacity
• fuel tank ...............................................................2 lt
including reserve of .....................................0.300 lt
• crank case transmission oil .......................... 900 gr
Front Suspension
• hydraulic fork with 35 mm Ø reverse rods
Rear Suspension
• hydraulic single shock absorber - adjustable spring
Rims
- front 14” x 60/100 (aluminum)
- rear 12” x 2.75(aluminum)
Brakes
- disk-type with hydraulic control Ø 200 mm
Engine
• type mono cylinder 4 stroke
• number of cylinders ...............................................1
• bore x stroke ...............................Ø 52,4 x 55,5 mm
• displacement ...............................................125 cc
• cooling ................................................................. air
• transmission ................................................ 4 speed
• inition digital electronic
• kick-starter
• spark plug ............................................NGK C7HSA
Noise dB
Vibrations on the arms ............................. ≤ 2,04 m/s2
Vibrations on the seated part ................. ≤ 2,04 m/s2
Fuel system
• carburetor ............................................ Mikuni Ø 19
• iet 98 max
• fuel running of unleaded petrol

19
SECTION 1: GENERAL INFORMATION
ELECTRICAL DIAGRAM
Legend
1 Generator
2 High Voltage coil
3 Spark plug
4 Engine stop push button
Ma Brown
N Black