Page 9 of 410

FVU00021
INFORMATIONS IMPORTANTES
CONCERNANT CE MANUELLE NON-RESPECT DES AVERTISSEMENTS DON-
NÉS DANS CE MANUEL PEUT ENTRAÎNER DES
BLESSURES GRAVES, VOIRE LA MORT.
Les informations particulièrement importantes sont repé-
rées par les notations suivantes:Le symbole de danger incite à ÊTRE VIGILANT
AFIN DE GARANTIR LA SÉCURITÉ!
AVERTISSEMENT
Le non-respect des instructions AVERTISSEMENT
peut entraîner des blessures graves ou la mort
du pi-
lote, d’une personne se trouvant à proximité ou d’une
personne inspectant ou réparant le véhicule.
SVU00021
INFORMACIÓN IMPORTANTE
RELATIVA AL MANUAL
LA INOBSERVANCIA DE LAS ADVERTENCIAS
CONTENIDAS EN ESTE MANUAL PUEDE ACA-
RREAR LESIONES GRAVES O MORTALES.
En este manual, la información particularmente im-
portante se distingue mediante las siguientes anota-
ciones:El símbolo de aviso de seguridad significa
¡ATENCIÓN! ¡TENGA CUIDADO! ¡SU SEGURI-
DAD ESTÁ EN JUEGO!
ADVERTENCIA
Hacer caso omiso de las instrucciones de AD-
VERTENCIA puede provocar lesiones graves oun accidente mortal
del conductor del vehículo,
de otra persona o de quien esté revisando o re-
parando el vehículo.
EE.book Page 2 Monday, July 11, 2005 2:32 PM
Page 10 of 410
CAUTION:
A CAUTION indicates special precautions that
must be taken to avoid damage to the vehicle.NOTE:
A NOTE provides key information to make proce-
dures easier or clearer.
*Product and specifications are subject to change
without notice.
EE.book Page 3 Monday, July 11, 2005 2:32 PM
Page 11 of 410
ATTENTION:
Un ATTENTION indique les précautions particuliè-
res à prendre pour éviter d’endommager le véhicule.N.B.:
Un N.B. fournit les renseignements nécessaires à la clari-
fication et la simplification des divers travaux.
*Le produit et les caractéristiques peuvent être modifiés
sans préavis.
AT E N C I O N :
ATENCIÓN indica precauciones especiales que
se deben adoptar para evitar causar daños al ve-
hículo.NOTA:
Una NOTA proporciona información clave para faci-
litar o clarificar los procedimientos.
*El producto y las especificaciones pueden cambiar
sin previo aviso.
EE.book Page 4 Monday, July 11, 2005 2:32 PM
Page 12 of 410
EVU01250
3-IMPORTANT NOTICE
This vehicle is designed and manufactured for
use on UNPAVED surfaces only. It is unsafe to
operate this vehicle on any paved surface,
paved street, paved road or motorway.
Check the laws and regulations in force before
choosing where to operate this vehicle.
It is illegal to operate this vehicle on public
lands where vehicles its size are prohibited.
EVU01100
YXR66FAV
OWNER’S MANUAL
©2005 by Yamaha Motor Co., Ltd.
1st Edition, July 2005
All rights reserved. Any reprinting or
unauthorized use without the written
permission of Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in U.S.A.
EE.book Page 1 Monday, July 11, 2005 2:32 PM
Page 13 of 410

FVU01250
REMARQUE IMPORTANTE
Ce véhicule est conçu et fabriqué pour une utilisation
sur surfaces non revêtues uniquement. La conduite de
ce véhicule sur les surfaces ou les routes revêtues est
dangereuse.
Prendre connaissance des lois et réglementations en
vigueur avant de décider de l’endroit où circuler dans
ce véhicule.
L’utilisation de ce véhicule sur les espaces publics
dont l’accès est interdit aux véhicules de cette taille
est illicite.
FVU01100
YXR66FAV
MANUEL DU PROPRIÉTAIRE
© 2005 par la Yamaha Motor Co., Ltd.
1re édition, juillet 2005
Tous droits réservés
Toute réimpression ou utilisation
sans la permission écrite
de la Yamaha Motor Co., Ltd.
est formellement interdite.
Imprimé aux États-Unis
SVU01250
AVISO IMPORTANTE
Este vehículo está diseñado y fabricado única-
mente para uso en superficies NO PAVIMENTA-
DAS. No es seguro utilizar este vehículo en vías
pavimentadas como calles, carreteras o auto-
vías.
Consulte las leyes y reglamentos vigentes antes
de decidir el lugar donde vaya a utilizar este vehí-
culo.
Es ilegal utilizar este vehículo en vías públicas en
las que esté prohibida la circulación de vehículos
de este tamaño.
SVU01100
YXR66FAV
MANUAL DEL PROPIETARIO
©2005 por Yamaha Motor Co., Ltd.
1ª edición, julio 2005
Todos los derechos reservados.
Toda reimpresión o
uso no autorizado sin el consentimiento
por escrito de Yamaha Motor Co., Ltd.
quedan expresamente prohibidos.
Impreso en EEUU.
EE.book Page 2 Monday, July 11, 2005 2:32 PM
Page 14 of 410

EVU00050
1-CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ....................... 1-1
SAFETY INFORMATION ......................... 2-1
DESCRIPTION AND VEHICLE
IDENTIFICATION .................................... 3-1
Identification number records ............... 3-7
Key identification number ..................... 3-9
Vehicle identification number ............. 3-11
Model label ......................................... 3-13
CONTROL FUNCTIONS ......................... 4-1
Main switch........................................... 4-1
Indicator and warning lights.................. 4-5
Multi-function meter unit ..................... 4-13
Switches ............................................. 4-19
Accelerator pedal ............................... 4-33
Brake pedal ........................................ 4-35
Parking brake lever ............................ 4-37
Drive select lever ................................ 4-39
Fuel tank cap ...................................... 4-39
Fuel level check window..................... 4-41
Starter (choke) ................................... 4-41
1234
Seats .................................................. 4-43
Seat belts ........................................... 4-45
Glove compartment............................ 4-49
Cargo bed .......................................... 4-51
Front and rear shock absorber
adjustment ....................................... 4-57
Trailer hitch bracket ........................... 4-61
Auxiliary DC jack ................................ 4-63
PRE-OPERATION CHECKS ................... 5-1
Front and rear brakes .......................... 5-7
Fuel .................................................... 5-11
Engine oil ........................................... 5-15
Coolant............................................... 5-17
Final gear oil ...................................... 5-21
Differential gear oil ............................. 5-21
Accelerator pedal ............................... 5-23
Seat belts ........................................... 5-23
Steering.............................................. 5-25
Fittings and fasteners......................... 5-25
Lights ................................................. 5-25
Switches............................................. 5-27
Tires ................................................... 5-29
How to measure tire pressure ............ 5-33
5
EE.book Page 1 Monday, July 11, 2005 2:32 PM
Page 15 of 410

Tire wear limit......................................5-35
OPERATION ............................................6-1
Starting a cold engine ...........................6-3
Starting a warm engine .........................6-9
Jump-starting ........................................6-9
Warming up.........................................6-13
Drive select lever operation and
reverse driving ..................................6-15
Engine break-in ...................................6-21
Parking ................................................6-25
Parking on a slope ..............................6-25
Accessories and loading .....................6-29
DRIVING YOUR VEHICLE .......................7-1
Getting to know your vehicle .................7-1
Learning to operate your vehicle...........7-9
Turning your vehicle............................7-13
Braking ................................................7-15
Going uphill .........................................7-17
Going downhill ....................................7-21
Crossing through shallow water ..........7-27
Riding over rough terrain ....................7-33
Riding in brush or wooded areas ........7-35
Encountering obstacles on the trail .....7-37
67
PERIODIC MAINTENANCE AND
ADJUSTMENT ......................................... 8-1
Owner’s manual and tool kit ................. 8-3
Periodic maintenance/lubrication.......... 8-7
Hood ................................................... 8-17
Console .............................................. 8-21
Engine oil and oil filter cartridge ......... 8-23
Final gear oil ....................................... 8-35
Differential gear oil.............................. 8-41
Coolant ............................................... 8-47
Axle boots ........................................... 8-51
Spark plug inspection ......................... 8-53
Cleaning the air filter elements ........... 8-61
V-belt cooling duct check hose ........... 8-73
V-belt case drain plug ......................... 8-75
Carburetor adjustment ........................ 8-77
Idle speed adjustment ........................ 8-79
Valve clearance adjustment ............... 8-81
Front brake pad check ........................ 8-83
Rear brake pad check ........................ 8-85
Checking the brake fluid level............. 8-85
Brake fluid replacement ...................... 8-89
Checking the brake pedal ................... 8-91
Parking brake lever free play
adjustment ........................................ 8-93
Brake light switch adjustment ............. 8-97
Cable inspection and lubrication......... 8-99
8
EE.book Page 2 Monday, July 11, 2005 2:32 PM
Page 16 of 410

Brake pedal and accelerator pedal
lubrication ....................................... 8-101
Rear knuckle upper and lower pivot
lubrication ....................................... 8-101
Steering shaft lubrication .................. 8-103
Wheel removal ................................. 8-103
Wheel installation ............................. 8-105
Battery .............................................. 8-107
Battery maintenance ........................ 8-111
Fuse replacement............................. 8-113
Replacing a headlight bulb ............... 8-119
Headlight beam adjustment.............. 8-125
Tail/brake light bulb replacement ..... 8-127
Troubleshooting................................ 8-133
Troubleshooting charts ..................... 8-135
CLEANING AND STORAGE ................... 9-1
A. Cleaning ........................................... 9-1
B. Storage ............................................ 9-7
SPECIFICATIONS ................................ 10-1
910EE.book Page 3 Monday, July 11, 2005 2:32 PM