Page 100 of 142
8-20
87. Check the differential gear case for oil leak-
age. If oil is leaking, check for the cause.
EBU23646Cleaning the air filter element The air filter element should be cleaned at the in-
tervals specified in the periodic maintenance and
lubrication chart. Clean or, if necessary, replace
the air filter element more frequently if you are
riding in unusually wet or dusty areas.TIPThere is a check hose at the bottom of the air filter
case. If dust or water collects in this hose, empty
the hose and clean the air filter element and air fil-
ter case.
1. Place the ATV on a level surface.
2. Remove the seat. (See page 4-14.)
3. Remove the air filter case cover by unhooking
the air filter case cover holders. Tightening torque:
Differential gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)1. Air filter case check hose
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Page 110 of 142

8-30
8
Use only the recommended quality brake fluid,
otherwise the rubber seals may deteriorate,
causing leakage and poor braking performance.Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reaction
and lead to poor braking performance.Be careful that water does not enter the brake
fluid reservoir when refilling. Water will signifi-
cantly lower the boiling point of the fluid and may
result in vapor lock.Brake fluid may deteriorate painted surfaces or
plastic parts. Always clean up spilled fluid imme-
diately.As the brake pads wear, it is normal for the brake
fluid level to gradually go down. However, if the
brake fluid level goes down suddenly, have a
Yamaha dealer check the cause.EBU24281Changing the brake fluid Have a Yamaha dealer change the brake fluid at
the intervals specified in the TIP after the periodic
maintenance and lubrication chart. In addition,have the oil seals of the brake master cylinder and
calipers as well as the brake hoses replaced at the
intervals listed below or whenever they are dam-
aged or leaking.
Oil seals: Replace every two years.Brake hoses: Replace every four years.EBU24394Checking the front brake lever free play The brake lever free play must be checked at the
intervals specified in the periodic maintenance and
lubrication chart. The brake lever should have no
free play as shown. If there is free play, have a
Yamaha dealer check the brake system. Recommended brake fluid:
DOT 41. No free play
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Page 131 of 142
10-1
10
EBU25960
SPECIFICATIONS
Dimensions:Overall length:
1984 mm (78.1 in)
Overall width:
1085 mm (42.7 in)
Overall height:
1120 mm (44.1 in)
Seat height:
827 mm (32.6 in)
Wheelbase:
1233 mm (48.5 in)
Ground clearance:
245 mm (9.6 in)
Minimum turning radius:
3000 mm (118 in)Weight:With oil and fuel:
YFM350FAZ 262.0 kg (578 lb)
YFM35FGZ 258.0 kg (569 lb)Noise and vibration level:Noise level (77/311/EEC):
YFM35FGZ 77.6 dB(A)
Vibration on seat (EN1032, ISO5008):
YFM35FGZ Will not exceed 0.5 m/s²
Vibration on handlebar (EN1032, ISO5008):
YFM35FGZ Will not exceed 2.5 m/s²
Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
348 cm³
Bore × stroke:
83.0 × 64.5 mm (3.27 × 2.54 in)
Compression ratio:
9.20 :1
Starting system:
Electric and recoil starter
Lubrication system:
Wet sumpEngine oil:Recommended brand:
YAMALUBE
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Page 139 of 142

INDEX
AAccessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-20
Axle boots .................................................................... 8-34BBattery .......................................................................... 8-38
Brake fluid, changing ................................................... 8-30
Brake fluid level, checking ........................................... 8-29
Brake lever free play, checking the front ...................... 8-30
Brake lever, front ............................................................ 4-7
Brake levers, checking and lubricating ........................ 8-36
Brake light switches ..................................................... 8-34
Brake pads and shoes, checking ................................. 8-28
Brake pedal and brake lever free play (rear) and
brake pedal position, adjusting and checking ............ 8-31
Brake pedal and rear brake lever ................................... 4-7
Brake pedal, checking and lubricating ......................... 8-36
Brakes .......................................................................... 8-28
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-35
Carburetor, adjusting ................................................... 8-25
Carrier, front ................................................................. 4-16
Carrier, rear .................................................................. 4-16
Chassis fasteners .......................................................... 5-6
Cleaning ......................................................................... 9-1DDifferential gear oil ......................................................... 5-3Differential gear oil, changing ...................................... 8-18
Drive select lever ........................................................... 4-9
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ........ 8-28
EEngine break-in .............................................................. 6-4
Engine, cold start ........................................................... 6-1
Engine idling speed ..................................................... 8-25
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ................................... 8-12
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-4FFinal gear oil ......................................................... 5-3, 8-16
Four-wheel-drive indicator light ...................................... 4-3
Fuel ....................................................................... 4-10, 5-3
Fuel cock ..................................................................... 4-12
Fuel tank cap ............................................................... 4-10
Fuses, replacing .......................................................... 8-40HHandlebar switches ....................................................... 4-4
Headlight beam, adjusting ........................................... 8-43
Headlight bulb, replacing ............................................. 8-42
Horn switch .................................................................... 4-4IIdentification numbers .................................................. 11-1
Indicator lights and warning light ................................... 4-2
Instruments, lights and switches .................................... 5-6
U1AB60E0.book Page 1 Wednesday, April 29, 2009 10:19 AM