2005 YAMAHA BRUIN 250 all

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.
U1P060.book Page 6 Monday, August 2, 2004 12:19 PM

EBU00111
3-IMPORTANT NOTICE
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 regula-
tions before operating this ATV.
EBU00532
YFM250BT
OWNER’S MANUAL
©2004 by Yamaha Motor Co., Ltd.
1st Edition, July 2004
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.
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FBU00111
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 dan-
gereuse.
Prendre connaissance des règlements locaux avant de
conduire ce véhicule.
FBU00532
YFM250BT
MANUEL DU PROPRIÉTAIRE
©2004 par Yamaha Motor Co., Ltd.
1
re édition, juillet 2004
Tous droits réservés. Toute réimpression ou
utilisation non autorisée sans la permission
écrite de la Yamaha Motor Co., Ltd.
est formellement interdite.
Imprimé aux U.S.A.
SBU00111
AVISO IMPORTANTE
Este ATV ha sido fabricado y diseñado únicamente
para su utilización en terrenos SIN PAVIMENTAR.
Por lo tanto, es peligroso, circular con el ATV por su-
perficies pavimentadas, calles pavimentadas, carre-
teras pavimentadas o autopistas pavimentadas.
Se ruega consultar las leyes y reglamentaciones lo-
cales sobre vehículos motorizados antes de usar el
ATV.
SBU00532
YFM250BT
MANUAL DEL PROPIETARIO
©2004 por Yamaha Motor Co., Ltd.
1ª Edición, julio 2004
Reservados todos los derechos.
Queda expresamente prohibida cualquier
reimpresión o uso no autorizado sin el
consentimiento escrito de
Yamaha Motor Co., Ltd.
Impreso en EE.UU.
U1P060.book Page 2 Monday, August 2, 2004 12:19 PM

OPERATION ............................................6-1
Starting a cold engine ...........................6-3
Starting a warm engine ........................6-9
Warming up ..........................................6-9
Drive select lever operation and
reverse driving ..................................6-11
Shifting ................................................6-15
To start out and accelerate .................6-17
To decelerate ......................................6-19
Engine break-in ...................................6-21
Parking ...............................................6-23
Parking on a slope ..............................6-25
Accessories and loading ....................6-27
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.....................................7-47
Riding downhill ....................................7-57
Crossing a slope .................................7-61
Crossing through shallow water ..........7-65
Riding over rough terrain ....................7-71
Sliding and skidding ............................7-73
What to do if ........................................7-77
What to do...........................................7-77
67
PERIODIC MAINTENANCE AND
ADJUSTMENT ......................................... 8-1
Owner’s manual and tool kit ................. 8-3
Periodic maintenance/lubrication.......... 8-7
Engine oil and oil filter element........... 8-17
Final gear oil ....................................... 8-31
Spark plug inspection ......................... 8-37
Air filter element cleaning ................... 8-43
Carburetor adjustment ....................... 8-49
Idle speed adjustment ........................ 8-51
Valve clearance adjustment .............. 8-53
Throttle lever adjustment ................... 8-53
Select lever safety system cable
adjustment ........................................ 8-55
Front brake pad check ........................ 8-55
Rear brake shoe inspection ............... 8-57
Brake fluid level check ........................ 8-59
Brake fluid replacement ...................... 8-61
Front brake lever free play.................. 8-63
Adjusting the brake pedal and rear
brake lever........................................ 8-65
Adjusting the rear brake light switch ... 8-73
Clutch adjustment ............................... 8-75
Cable inspection and lubrication......... 8-77
Brake lever and brake pedal
lubrication ........................................ 8-79
Steering shaft lubrication .................... 8-81
8
U1P060.book Page 2 Monday, August 2, 2004 12:19 PM

Wheel removal ................................... 8-81
Wheel installation ............................... 8-83
Battery ............................................... 8-85
Replenishing the battery fluid ............. 8-89
Fuse replacement .............................. 8-93
Replacing a headlight bulb ................. 8-95
Headlight beam adjustment................ 8-99
Tail/brake light bulb replacement ....... 8-99
Troubleshooting ............................... 8-103
Troubleshooting chart ...................... 8-105
CLEANING AND STORAGE ................... 9-1
A. Cleaning .......................................... 9-1
B. Storage ........................................... 9-7
SPECIFICATIONS ................................ 10-1
CONVERSION TABLE .......................... 11-1
91011U1P060.book Page 3 Monday, August 2, 2004 12:19 PM

1-1
EBU00464
1-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.
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2-1
SAFETY INFORMATION
EBU00193
AN ATV IS NOT A TOY AND CAN BE HAZARD-OUS 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 precautions.
SEVERE INJURY OR DEATH can result if you do
not follow these instructions:


Read this manual and all labels carefully and
follow the operating procedures described.


Never operate an ATV without proper training
or instruction.


Always follow the age recommendation:
– A child under 16 years old should never oper-
ate an ATV with engine size greater than 90cc.
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2-3

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 jacket, and long pants.
U1P060.book Page 3 Monday, August 2, 2004 12:19 PM