2006 YAMAHA BRUIN 350 4WD belt

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
Engine break-in ...................................6-15
Parking ................................................6-17
Parking on a slope ..............................6-19
Accessories and loading .....................6-21
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 ................................7-39
Climbing uphill.....................................7-45
Riding downhill ....................................7-55
Crossing a slope .................................7-59
Crossing through shallow water ..........7-63
Riding over rough terrain ....................7-69
Sliding and skidding ............................7-71
What to do if ........................................7-75
What to do...........................................7-75
67
PERIODIC MAINTENANCE AND
ADJUSTMENT ........................................ 8-1
Owner’s manual and tool kit ................. 8-3
Periodic maintenance/lubrication.......... 8-7
Panel removal and installation............ 8-17
Engine oil and oil filter cartridge ......... 8-21
Final gear oil ....................................... 8-31
Differential gear oil replacement ......... 8-39
Axle boots ........................................... 8-45
Spark plug inspection ......................... 8-47
Air filter element cleaning ................... 8-53
V-belt cooling duct check hose ........... 8-61
V-belt case drain plug ......................... 8-61
Carburetor adjustment ........................ 8-63
Idle speed adjustment ........................ 8-65
Valve clearance adjustment ............... 8-67
Select lever safety system cable
adjustment ........................................ 8-67
Throttle lever adjustment .................... 8-69
Front brake pad check ........................ 8-71
Rear brake shoe inspection ................ 8-71
Brake fluid level check ........................ 8-73
Brake fluid replacement ...................... 8-77
Front brake lever free play.................. 8-79
Rear brake pedal and lever
adjustment ........................................ 8-81
8
U5UH62.book Page 2 Tuesday, April 5, 2005 6:57 PM

3-1
EBU00032
DESCRIPTION AND MACHINE
IDENTIFICATION1. Rear shock absorber
assembly spring preload
adjusting ring
2. Storage box and tool kit
3. Spark plug
4. Front shock absorber
assembly spring preload
adjusting ring
5. Brake pedal
6. V-belt case
7. Fuel cock
8. Air filter case
9. Fuses
10. Tail/brake light
11. V-belt cooling duct check
hose12. Oil filter cartridge
13. Engine oil dipstick
14. Rear brake lever
15. Left handlebar switches
16. Starter (choke)
17. Horn switch
18. Drive select lever
19. Speedometer
20. Main switch
21. Fuel tank cap
22. On-Command four-wheel
drive switch
23. Throttle lever
24. Front brake leverNOTE:The machine you have purchased may differ
slightly from those shown in the figures of this
manual.
U5UH62.book Page 1 Tuesday, April 5, 2005 6:57 PM

7-65
1. Air filter case check hose
1. Flexible de contrôle du boîtier de filtre à air
1. Manguera de comprobación de la caja del filtro de aire
Test your brakes after leaving the water. Do not
continue to ride your ATV without verifying that
you have regained proper braking ability.CAUTION:_ After riding your ATV in water, be sure to drain
the trapped water by removing the check hose
at the bottom of the air filter case, the V-belt
cooling duct check hose, the drive select lever
box check hose and the storage box check
hose. Also, remove the V-belt case drain plug
to drain any water that may have accumulated.
Wash the ATV in fresh water if it has been op-
erated in salt water or muddy conditions. _
U5UH62.book Page 65 Tuesday, April 5, 2005 6:57 PM

7-67 1. V-belt cooling duct check hose
1. Flexible de contrôle du conduit de refroidissement de la courroie
trapézoïdale
1. Manguera de comprobación del conducto de enfriamiento de
la correa trapezoidal
1. Drive select lever box check hose
1. Flexible de contrôle du boîtier du levier de présélection
1. Manguera de comprobación de la caja de la palanca de
selección de marcha
1. Storage box check hose
1. Flexible de contrôle de la boîte de rangement
1. Manguera de comprobación de la caja para objetos
1. V-belt case drain plug
1. Boulon de vidange du carter de courroie trapézoïdale
1. Tapón de drenaje de la caja de la correa trapezoidal
U5UH62.book Page 67 Tuesday, April 5, 2005 6:57 PM

8-8
Engine oil filter cartridge
Replace.Final gear oil
Check oil level/oil leakage.
Replace every 12 months.Differential gear oil
Front brake*Check operation/fluid leakage. (See NOTE page 8-9.)
Correct if necessary.Rear brakeCheck operation.
Adjust if necessary.Select lever safety system
cable*Check operation.
Adjust if necessary.V-belt*Check operation.
Check for cracks or damage.Wheels*Check balance/damage/runout.
Repair if necessary.Wheel bearing*Check bearing assemblies for looseness/damage.
Replace if damaged.Front and rear
suspension*Check operation.
Correct if necessary.Steering system*Check operation./Replace if damaged.
Check toe-in./Adjust if necessary.Drive shaft universal
joint*Lubricate with lithium-soap-based grease.Axle boots*Check operation.
Replace if damaged.Fittings and fasteners*Check all chassis fittings and fasteners.
Correct if necessary.Lights and switches*Check operation.
Adjust headlight beams.
ITEM ROUTINEWhichever
comes firstINITIAL EVERY
month136612
km
(mi)320
(200)1,200
(750)2,400
(1,500)2,400
(1,500)4,800
(3,000)
hours 20 75 150 150 300
U5UH62.book Page 8 Tuesday, April 5, 2005 6:57 PM

8-61 1. V-belt cooling duct check hose
1. Flexible de contrôle du conduit de refroidissement de la courroie
trapézoïdale
1. Manguera de comprobación del conducto de enfriamiento de
la correa trapezoidal
1. V-belt case drain plug
1. Boulon de vidange du carter de courroie trapézoïdale
1. Tapón de drenaje de la caja de la correa trapezoidal
EBU06411
V-belt cooling duct check hose
If dust or water collects in the V-belt cooling duct
check hose, remove the hose and clean it.
EBU08741
V-belt case drain plug
After riding in water deep enough to allow it to en-
ter the V-belt case, remove this plug to drain the
water from the case.NOTE:_ If water drains from the V-belt case after removing
the plug, have a Yamaha dealer inspect the ATV
as the water may affect other engine parts. _
U5UH62.book Page 61 Tuesday, April 5, 2005 6:57 PM

10-4
Transmission:
Primary reduction system V-belt
Secondary reduction system Shaft drive
Secondary reduction ratio 41/21
× 24/18
× 33/9 (9.545)
Transmission type V-belt automatic
Operation Left hand operation
Forward gear 35/20 (1.750)
Reverse gear 26/15 (1.733)
Chassis:
Frame type Steel tube frame
Caster angle 4°
Trail 21 mm
Tire:
Type Tubeless
Size front AT25
×8 - 12
rear AT25
× 10 - 12
Brake:
Front brake type Dual disc brake
operation Right hand operation
Rear brake type Drum brake
operation Left hand and right foot operation Model YFM35FA
U5UH62.book Page 4 Tuesday, April 5, 2005 6:57 PM