Page 8 of 432
AN IMPORTANT SAFETY MESSAGE:
READ THIS MANUAL COMPLETELY BE-
FORE OPERATING YOUR ATV. MAKE SURE
YOU UNDERSTAND ALL INSTRUCTIONS.
PAY CLOSE ATTENTION TO THE WARNING
AND CAUTION LABELS ON THE ATV.
THIS ATV, AND ANY OTHER ATV OVER
90cc, SHOULD NOT BE RIDDEN BY ANY-
ONE UNDER 16 YEARS OF AGE.
U5GH62.book Page 6 Monday, August 6, 2001 9:09 AM
Page 10 of 432
EBU00801
1-IMPORTANT MANUAL
INFORMATION
FAILURE TO FOLLOW THE WARNINGS CON-
TAINED IN THIS MANUAL CAN RESULT IN SE-
RIOUS INJURY OR DEATH.
Particularly important information is distinguished
in this manual by the following notations:The Safety Alert Symbol means ATTENTION!
BECOME ALERT! YOUR SAFETY IS IN-
VOLVED!
WARNING
Failure to follow WARNING instructions couldresult in severe injury or death
to the machine
operator, a bystander or a person inspecting
or repairing the machine.
U5GH62.book Page 1 Monday, August 6, 2001 9:09 AM
Page 16 of 432

EBU00015
1-CONTENTS
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
Coolant temperature warning light
checking method ............................... 4-7
Speedometer ..................................... 4-11
Fuel gauge ........................................ 4-13
Handlebar switches ........................... 4-15
Throttle lever ..................................... 4-21
Speed limiter ..................................... 4-23
Front brake lever ............................... 4-25
Rear brake pedal and lever ............... 4-27
1234
Drive select lever .............................. 4-29
Recoil starter ..................................... 4-29
Fuel tank cap .................................... 4-31
Fuel cock ........................................... 4-33
Starter (choke) “” .......................... 4-35
Seat ................................................... 4-37
Storage box ....................................... 4-39
Front carrier ...................................... 4-39
Rear carrier ....................................... 4-39
Front shock absorber adjustment ..... 4-41
Rear shock absorber adjustment ...... 4-45
Auxiliary DC jack ............................... 4-49
PRE-OPERATION CHECKS .................. 5-1
Front and rear brakes ......................... 5-7
Fuel .................................................... 5-11
Engine oil ........................................... 5-15
Final gear oil ..................................... 5-19
Differential gear oil ............................ 5-21
Throttle lever ..................................... 5-21
Fittings and Fasteners ...................... 5-21
Lights ................................................ 5-23
Switches............................................. 5-23
5
U5GH62.book Page 1 Monday, August 6, 2001 9:09 AM
Page 28 of 432
1-1
EBU00464
LOCATION OF THE WARNING
AND SPECIFICATION LABELSRead and understand all of the labels on your ma-
chine. They contain important information for safe
and proper operation of your ATV.
Never remove any labels from your ATV. If a label
becomes difficult to read or comes off, a replace-
ment label is available from your Yamaha dealer.
1
6
40 kg (88 lbs)
4GB-24877-A0
LOAD LIMIT80 kg (176 lbs)
4SH-24877-A0
LOAD LIMIT
U5GH62.book Page 1 Monday, August 6, 2001 9:09 AM
Page 31 of 432
1-4
For Oceania
Pour l’Océanie
Para Oceanía
2
UNDERWARNING5FE-21697-01
NEVER operate this ATV if you areunder age 16. Operating this ATV if you are under
the age of 16 increases your chance
of severe injury or death.
For Europe
Pour l’Europe
Para Europa
5FK-21568-00
GBDEFINLPS
Before you operate this vehicle,
read the owner's manual.
Lesen Sie die Bedlenungsanleitung
bevor Sie dieses Fahrzeug fahren.
Autes 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 voertulg
de handleiding met aandacht lezen.
Antes de utilizar este veículo,
leia o manual do proprietário.
lnnan du kör detta fordon,
läs handboken.
3
U5GH62.book Page 4 Monday, August 6, 2001 9:09 AM
Page 32 of 432
1-5
For Oceania
Pour l’Océanie
Para Oceanía
WARNING5FE-21568-11
Improper ATV use can result in SEVERE
INJURY or DEATH.ALWAYS USE
AN APPROVED
HELMET AND
PROTECTIVE
GEARNEVER USE
ON PUBLIC
ROADSNEVER CARRY
PASSENGERSNEVER USE
WITH DRUGS
OR ALCOHOLNEVER operate :• without proper training or instruction.
at speeds too fast for your skills or
the conditions.
on public roads-a collision can occur
with another vehicle.
with a passenger-passengers affect balance
and steering and increase risk
of losing control.ALWAYS : use proper riding techniques to avoid vehicle overturns on hills and rough terrain
and in turns.
avoid paved surfaces-pavement may
seriously affect handling and control. LOCATE AND READ OWNER'S MANUAL.
FOLLOW ALL INSTRUCTIONS AND WARNINGS.
3
U5GH62.book Page 5 Monday, August 6, 2001 9:09 AM
Page 35 of 432
1-8
For Oceania
Pour l’Océanie
Para Oceanía
WARNING
Passengers can cause
a loss of control,
resulting in SEVERE
INJURY or DEATH.
NEVER ride as a
passenger.5FE-2151H-01
5
7
PULLING LOAD: 4900 N(
500kgf)
1102 l b f
TONGUE WEIGHT: 147 N(
15kgf)
33 lbf
5GH-2151K-00
MAXIMUM.
LOADING LIMIT MAXIMUM LOADING LIMIT
For Europe
Pour l’Europe
Para Europa
For Europe
Pour l’Europe
Para Europa8
4GB-2155A-00
.
9
MODEL
POWER:DRY WHEIGHT:
YFM400FWA
19.4 kW
247 kg5GH-2156A-00
U5GH62.book Page 8 Monday, August 6, 2001 9:09 AM
Page 50 of 432
2-15
WARNING
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
refuel while smoking, or while in the vicini-
ty of sparks, open flames, or other sources
of ignition such as the pilot lights of water
heaters and clothes dryers. Gasoline can
catch fire and you could be burned.
When transporting the machine in another
vehicle, be sure it is kept upright and that
the fuel cock is in the “OFF” position. Oth-
erwise, 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 gaso-
line vapor, or get some gasoline in your
eyes, see your doctor immediately. If gaso-
line spills on your skin, wash with soap
and water. If gasoline spills on your cloth-
ing, change your clothes.
U5GH62.book Page 15 Monday, August 6, 2001 9:09 AM