2005 YAMAHA BRUIN 250 parking brake

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
Handlebar switches ............................. 4-5
Throttle lever ....................................... 4-9
Speed limiter ...................................... 4-11
Front brake lever ............................... 4-13
Brake pedal and rear brake lever ....... 4-15
Parking brake ..................................... 4-17
Shift pedal ......................................... 4-19
Drive select lever ............................... 4-19
Recoil starter ..................................... 4-21
1234
Fuel tank cap .................................... 4-21
Fuel cock ........................................... 4-23
Starter (choke) ................................... 4-25
Seat.................................................... 4-27
Storage compartment ........................ 4-29
Front carrier ....................................... 4-31
Rear carrier ........................................ 4-31
Rear shock absorber adjustment ....... 4-33
PRE-OPERATION CHECKS ................... 5-1
Front and rear brakes .......................... 5-5
Fuel ...................................................... 5-9
Engine oil ........................................... 5-13
Final gear oil ...................................... 5-15
Throttle lever ...................................... 5-15
Fittings and fasteners......................... 5-17
Lights ................................................. 5-17
Switches............................................. 5-17
Battery ............................................... 5-17
Tires .................................................. 5-19
How to measure tire pressure ............ 5-23
Tire wear limit .................................... 5-25
5
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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
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U1P060.book Page 2 Monday, August 2, 2004 12:19 PM

3-1
EBU00032
1-DESCRIPTION AND MACHINE
IDENTIFICATION1. Storage compartment
2. Air filter case
3. Engine oil dipstick
4. Front brake fluid reservoir
5. Brake pedal
6. Clutch adjusting bolt
7. Engine oil filter element
8. Rear brake light switch
9. Headlight
10. Fuel cock
11. Recoil starter
12. Fuses
13. Battery
14. Tail/brake light15. Rear shock absorber
spring preload adjusting
ring
16. Engine oil drain bolt
17. Shift pedal
18. Rear brake lever
19. Handlebar switch
20. Parking brake
21. Horn switch
22. Starter (choke)
23. Drive select lever
24. Main switch
25. Fuel tank cap
26. Throttle lever
27. Front brake leverNOTE:The machine you have purchased may differ
slightly from those shown in the figures of this
manual.
U1P060.book Page 1 Monday, August 2, 2004 12:19 PM

4-17 1. Lock plate
1. Verrou
1. Placa de bloqueo
EBU00075
Parking brake
Use the parking brake when you have to start the
engine or park the machine, especially on a slope.
Apply the rear brake lever and push down the lock
plate to apply the parking brake. Squeeze the rear
brake lever to release the parking brake.
WARNING


Always set the parking brake before start-
ing the engine. The ATV could start mov-
ing unexpectedly if the parking brake is not
applied. This could cause loss of control or
a collision.


Always be sure you have released the
parking brake before you begin to ride. The
brake could overheat if you ride the ATV
without releasing the parking brake. You
could lose braking performance which
could cause an accident. You could also
wear out the brakes prematurely.
U1P060.book Page 17 Monday, August 2, 2004 12:19 PM

4-21 1. Recoil starter
1. Lanceur à réenroulement
1. Arranque por tracción de cable
1. Fuel tank cap
1. Bouchon du réservoir de carburant
1. Tapón del depósito de combustible
EBU00591
Recoil starter
Firmly grasp the handle and pull slightly until en-
gagement can be felt. Then pull forcefully, being
careful not to pull the rope all the way out.
WARNING
Put the transmission in neutral and set the
parking brake before starting the engine or the
ATV could start to move unexpectedly, which
could cause an accident.
EBU00092
Fuel tank cap
Remove the fuel tank cap by turning it counter-
clockwise.
U1P060.book Page 21 Monday, August 2, 2004 12:19 PM

6-3
EBU15560
Starting a cold engine
WARNING
_ Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or do
not work smoothly, you could be unable to
control the ATV, which could lead to an acci-
dent or collision. _1. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the main switch to “ON” and the engine
stop switch to “”.
4. Shift the transmission into neutral.
U1P060.book Page 3 Monday, August 2, 2004 12:19 PM

6-23 1. Locked position
1. Position verrou bloqué
1. Posición bloqueada
0–10 hours:
Avoid continuous operation above half throttle. Al-
low a cooling off period of five to ten minutes after
every hour of operation. Vary the speed of the ma-
chine from time to time. Do not operate it at one
set throttle position.
10–20 hours:
Avoid prolonged operation above 3/4 throttle. Rev
the machine freely through the gears but do not
use full throttle at any time.
After break-in:
Avoid prolonged full throttle operation. Vary
speeds occasionally.
EBU02111
Parking
When parking, stop the engine and shift into first
gear. Turn the fuel cock to “OFF” and apply the
parking brake.
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6-25
EBU02201
Parking on a slope
WARNING
_ Avoid parking on hills or other inclines. Park-
ing on a hill or other incline could cause the
ATV to roll out of control, increasing the
chance of an accident. If you must park on an
incline, put the ATV in low gear, apply the park-
ing brake, and block the front and rear wheels
with rocks or other objects. Do not park the
ATV at all on hills that are so steep you could
not walk up them easily. _1. Bring the ATV to a stop by applying the
brakes in low gear.
2. Stop the engine.
3. With the rear brake lever and brake pedal ap-
plied, apply the parking brake and slowly re-
lease the brake pedal.
U1P060.book Page 25 Monday, August 2, 2004 12:19 PM