2006 YAMAHA YFM80R engine

LOCATION OF THE WARNING AND
SPECIFICATION LABELS .......................1-1
SAFETY INFORMATION .........................2-1
DESCRIPTION AND MACHINE
IDENTIFICATION.....................................3-1
Identification number records ...............3-3
Key identification number .....................3-5
Vehicle identification number ...............3-7
Model label ...........................................3-9
CONTROL FUNCTIONS..........................4-1
Main switch ...........................................4-1
Indicator lights ......................................4-3
Handlebar switches ..............................4-3
Throttle lever ........................................4-7
Speed limiter ........................................4-9
Front brake lever ................................4-13Brake pedal and rear brake lever .......4-15
Parking brake .....................................4-17
Shift pedal ..........................................4-19
Fuel tank cap ......................................4-19
Fuel cock ............................................4-21
Choke lever ........................................4-23
Seat ....................................................4-25
PRE-OPERATION CHECKS ...................5-1
Front and rear brakes ...........................5-5
Fuel ......................................................5-9
Engine oil ............................................5-11
Final gear oil .......................................5-15
Throttle lever ......................................5-17
Tires ...................................................5-19
How to measure tire pressure ............5-23
Tire wear limit .....................................5-25
Fittings and fasteners .........................5-25
Switches .............................................5-25
Battery ................................................5-25
EBU00015
CONTENTS
1
2
3
4
5
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OPERATION ............................................6-1
Starting a cold engine ...........................6-3
Starting a warm engine ......................6-11
Warming up ........................................6-11
Shifting ...............................................6-13
To start out and accelerate .................6-15
To decelerate .....................................6-19
Engine break-in ..................................6-21
Parking ...............................................6-25
Parking on a slope ..............................6-27
Accessories and loading ....................6-29
Riding Your ATV ......................................7-1
Getting to know your ATV.....................7-3
Ride with care and good
judgement ...........................................7-5
Be careful where you ride ...................7-27
Turning your ATV ...............................7-41
Climbing uphill ....................................7-45
Riding downhill ...................................7-57
Crossing a slope .................................7-61Crossing through shallow water .........7-65
Riding over rough terrain ....................7-69
Sliding and skidding ...........................7-71
What to do if ......................................7-75
What to do .........................................7-75
PERIODIC MAINTENANCE AND
ADJUSTMENT .........................................8-1
Owner’s manual and tool kit .................8-3
Periodic maintenance/lubrication .........8-7
Engine oil ............................................8-13
Final gear oil .......................................8-19
Spark plug inspection .........................8-23
Air filter cleaning .................................8-27
Air intake restrictor plate removal .......8-33
Carburetor adjustment ........................8-35
Idle speed adjustment ........................8-37
Valve clearance adjustment ...............8-39
Cam chain adjustment ........................8-39
Front and rear brake shoe
inspection .........................................8-416
7
8
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2-1
EBU10421
AN ATV IS NOT A TOY AND CAN BE HAZ-
ARDOUS TO OPERATE.
An ATV handles differently from other vehicles
including motorcycles and cars. A collision or
rollover 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:
8Read this manual and all labels carefully and
follow the operating procedures described.
8Never operate an ATV without proper instruc-
tion.
8Always follow the age recommendation:
- A child under 12 years old should never
operate an ATV with engine size greater
than 70 cc.
- A child under 16 years old should never
operate an ATV with engine size greater
than 90 cc.
qSAFETY INFORMATION
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2-15
8Never exceed the stated load capacity for an
ATV. Cargo should be properly distributed
and securely attached. Reduce speed and fol-
low instructions in this manual for carrying
cargo or pulling a trailer. Allow greater dis-
tance for braking.
w
8Always turn off the engine when refueling.
8Do not refuel right after the engine has
been running and is still very hot.
8Do not spill gasoline on the engine or
exhaust pipe/muffler when refueling.
Never refuel while smoking, or while in the
vicinity of sparks, open flames, or other
sources of ignition such as the pilot lights
of water heaters and clothes dryers.
Gasoline can catch fire. You could be
burned.
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2-17
8When transporting the machine in another
vehicle, be sure it is kept upright and that
the fuel cock is in the “OFF” position.
Otherwise, fuel may leak out of the carbu-
retor or fuel tank.
8Gasoline is poisonous. If you should swal-
low some gasoline or inhale a lot of gaso-
line vapor, or get some gasoline in your
eyes, see your doctor immediately. If
gasoline spills on your skin, wash with
soap and water. If gasoline spills on your
clothing, change your clothes.
w
Always operate your ATV in an area with
adequate ventilation. Never start or run the
engine in a closed area. Exhaust fumes are
poisonous and may cause loss of con-
sciousness and death within a short time.
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4-1
EBU00040
CONTROL FUNCTIONS
EBU00042
Main switch
Functions of the respective switch positions are
as follows:
ON:
The engine can be started only at this position.
OFF:
All electrical circuits are switched off. The key
can be removed in this position.
OFF ON
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4-3
EBU00043
Indicator lights
EBU00603
Neutral indicator light “N”
This indicator light comes on when the transmis-
sion is in neutral.
EBU00053
Handlebar switches
EBU11580
Engine stop switch “ENG. STOP”
Make sure that the engine stop switch is in the
“RUN” position before starting the engine. The
engine stop switch controls ignition and can be
used at all times to stop the engine, especially in
an emergency. The engine will not start or run
when the engine stop switch is turned to “OFF”.
q
1. Neutral indicator light “N”
1. Témoin de point mort “N”
1. Luz de control de punto muerto “N”
1
1. Engine stop switch “ENG. STOP”
1. Coupe-circuit du moteur “ENG. STOP”
1. Interruptor de paro del motor “ENG. STOP”
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4-5
EBU00056
Start switch “START”
The starter motor cranks the engine when this
switch is pushed.
cC
See starting instructions prior to starting
engine (see page 6-3 for details).
NOTE:
If the starter switch is pushed with the main
switch “ON” and the engine stop switch “OFF”,
the starter motor will be activated but the engine
will not start. To start the engine, be sure to
position the engine stop switch at “RUN”.
1
1. Start switch “START”
1. Contacteur du démarreur “START”
1. Interruptor de arranque “START”
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