Page 12 of 264

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 ...............3-5
Model label ...........................................3-7
CONTROL FUNCTIONS .........................4-1
Main switch ...........................................4-1
Handlebar switches ..............................4-3
Throttle lever ........................................4-5
Throttle OverRide System ....................4-7
Speed limiter ........................................4-9
Clutch lever ........................................4-11
4
3
2
1Front brake lever ................................4-11
Rear brake pedal ................................4-13
Parking brake .....................................4-13
Shift pedal ..........................................4-17
Kick starter .........................................4-17
Fuel tank cap ......................................4-19
Fuel cock ............................................4-19
Starter (choke)....................................4-21
Seat ....................................................4-23
Front shock absorber adjustment .......4-25
Rear shock absorber adjustment .......4-27
PRE-OPERATION CHECKS ...................5-1
Front and rear brakes ...........................5-5
Fuel ....................................................5-11
Engine mixing oil ................................5-15
Transmission oil .................................5-17
Chain ..................................................5-19
Throttle lever ......................................5-19
5
EBU00015
CONTENTS
Page 13 of 264

Fittings and fasteners .........................5-19
Lights ..................................................5-21
Switches .............................................5-21
Tires ...................................................5-23
How to measure tire pressure ............5-27
Tire wear limit .....................................5-29
OPERATION ............................................6-1
Starting a cold engine...........................6-3
Starting a warm engine ........................6-9
Warming up ..........................................6-9
Shifting ...............................................6-11
To start out and accelerate.................6-15
To decelerate .....................................6-19
Engine break-in ..................................6-21
Parking ...............................................6-25
Parking on a slope..............................6-27
Accessories and loading ....................6-29
6
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 ....................................7-45
Riding downhill ...................................7-57
Crossing a slope .................................7-61
Crossing through shallow water .........7-65
Riding over rough terrain ....................7-69
Sliding and skidding ...........................7-71
What to do if .......................................7-75
What to do ..........................................7-75
PERIODIC MAINTENANCE AND
ADJUSTMENT .........................................8-1
Owner’s manual and tool kit .................8-3
Periodic maintenance/Lubrication ........8-7
Transmission oil .................................8-17
8
7
Page 88 of 264
5-1
EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Brakes9Check operation, free play, fluid level and fluid leakage. 5-5 ~ 5-9
9Fill with DOT 4 (or DOT 3) brake fluid if necessary. 8-73 ~ 8-83
Clutch9Check operation, condition and lever free play. 8-89
Parking brake9Check operation, condition and free play. 8-85 ~ 8-87
Fuel9Check fuel level.
9Fill with fuel if necessary.5-11 ~ 5-13
Transmission oil9Check oil level.
9Fill with oil if necessary.5-17, 8-17 ~ 8-23
Coolant reservoir 9Check coolant level.
9Fill with coolant if necessary.8-23 ~ 8-37
Drive chain9Check chain slack and condition.
9Adjust if necessary.5-19, 8-89 ~ 8-93
Throttle9Check for proper throttle cable operation. 5-19, 8-71
Wheels and tires9Check tire pressure, wear and damage. 5-23 ~ 5-29, 8-101
Fittings and Fasteners9Check all fittings and fasteners. 5-19
Lights9Check for proper operation. 5-21, 8-103 ~ 8-105
Page 104 of 264
5-17
EBU00490
Transmission oil
Make sure the transmission oil is at the specified
level. Add oil as necessary. (See pages 8-17 ~
8-23.)
cC
Be sure to use motor oils that do not contain
anti-friction modifiers. Passenger car motor
oils (often labeled “Energy Conserving”) con-
tain anti-friction additives which will cause
clutch and/or starter clutch slippage, result-
ing in reduced component life and poor
engine performance.
Recommended oil:
SAE 10W30
Recommended oil classification:
API Service SE, SF, SG type or higher
Oil quantity:
Total amount:
1.7 L
Periodic oil change:
1.5 L
Page 247 of 264
10-2
Model YFZ350
Engine oil (2-cycle):
Type Yamalube R, Castrol R30, A545, A747
Mixing ratio See page 5-15.
Transmission oil:
Type SAE10W-30
Rcommended transmission oil classification: API Service SE, SF, SG type or higher
Quantity
Periodic oil change 1.5 L
Total amount 1.7 L
Radiator:
(Including all routes) 1.5 L
Air filter: Wet type element
10
cC
Be sure to use motor oils that do not contain
anti-friction modifiers. Passenger car motor
oils (often labeled “Energy Conserving”)
contain anti-friction additives which will
cause clutch and/or starter clutch slippage,
resulting in reduced component life and poor
engine performance.