8-18
8
9. Check the final gear case for oil leakage. If oil
is leaking, check for the cause.
10. Install the final gear case guard by installing the bolts and tightening them to the specified
torque.
EBU23437Changing the differential gear oilThe differential gear case must be checked for oil
leakage before each ride. If any leakage is found,
have a Yamaha dealer check and repair the ATV.
In addition, the differential gear oil must be
changed as follows at the intervals specified in the
periodic maintenance and lubrication chart.1. Place the ATV on a level surface.
2. Place an oil pan under the differential gear case to collect the used oil.
3. Remove the differential gear oil filler bolt, the differential gear oil drain bolt and their gasket
to drain the oil from the differential gear case.
Tightening torque:
Final gear case guard bolt:16 Nm (1.6 m·kgf, 12 ft·lbf)
1. Differential gear oil filler bolt
2. Gasket
1. Differential gear oil drain bolt
2. Gasket
21
12
U1NS63E0.book Page 18 Monday, March 10, 2014 9:05 AM
8-19
84. Install the drain bolt and its new gasket, and
then tighten the bolt to the specified torque.
5. Refill with the specified amount of the recom- mended differential gear oil. NOTICE: Be
sure no foreign material enters the differ-
ential gear case.
[ECB00412]
TIP Do not exceed the specified differential gear oil
quantity when filling. Overfilling will cause the oil
to seep out of the breather hose during and af-
ter riding.
The differential gear case capacity is greater
than the recommended oil quantity, therefore
the oil level cannot be accurately checked from
the oil filler hole.
6. Check the oil filler bolt gasket for damage,
and replace it if necessary.
7. Install the oil filler bolt and its gasket, and then tighten the bolt to the specified torque.
8. Check the differential gear case for oil leak- age. If oil is leaking, check for the cause.EBU23647Cleaning the air filter elementThe 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 rid-
ing 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.
Tightening torque:Differential gear oil drain bolt:10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Recommended differential gear oil: See page 10-1.
Oil quantity: 0.35 L (0.37 US qt, 0.31 Imp.qt)
Tightening torque:Differential gear oil filler bolt:23 Nm (2.3 m·kgf, 17 ft·lbf)
U1NS63E0.book Page 19 Monday, March 10, 2014 9:05 AM
8-30
8
Use only the specified brake fluid; otherwise,
the rubber seals may deteriorate, causing
leakage.
Refill with the same type of brake fluid. Add-
ing a brake fluid other than DOT 4 may result
in a harmful chemical reaction.
Be careful that water does not enter the
brake fluid reservoir when refilling. Water will
significantly lower the boiling point of the flu-
id and may result in vapor lock.
NOTICEECB01161Brake fluid may damage painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately. As the brake pads wear, it is normal for the brake
fluid level to gradually go down. A low brake fluid
level may indicate worn brake pads and/or brake
system leakage; therefore, be sure to check the
brake pads for wear and the brake system for
leakage. If the brake fluid level goes down sud-
denly, have a Yamaha dealer check the cause be-
fore further riding.
EBU24283Changing the brake fluidHave a Yamaha dealer change the brake fluid at
the intervals specified in 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 damaged or leaking.
Oil seals: Replace every two years.
Brake hoses: Replace every four years.EBU24395Checking the front brake lever free
playThe 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.
U1NS63E0.book Page 30 Monday, March 10, 2014 9:05 AM
10-1
10
EBU25962
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:Curb weight:
251.0 kg (553 lb) (EUR)(FRA)(GBR)
258.0 kg (569 lb) (AUS)(NZL)Noise and vibration level:Noise level (77/311/EEC):77.6 dB(A) (EUR)(FRA)(GBR)
Vibration on seat (EN1032, ISO5008): Will not exceed 0.5 m/s² (EUR)(FRA)(GBR)
Vibration on handle (EN1032, ISO5008):
Will not exceed 2.5 m/s² (EUR)(FRA)(GBR)
Engine:Engine type:Air cooled 4-stroke, SOHC
Cylinder arrangement: Single cylinder
Displacement:
348 cm³
Bore × stroke:
83.0 × 64.5 mm (3.27 × 2.54 in)
Compression ratio: 9.2 : 1
Starting system:
Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:
YAMALUBE
U1NS63E0.book Page 1 Monday, March 10, 2014 9:05 AM
12-1
12
INDEX
AAccessories and loading ................................................ 6-6
Air filter element, cleaning ........................................... 8-19
Axle boots .................................................................... 8-36BBattery ......................................................................... 8-39
Brake fluid, changing ................................................... 8-30
Brake fluid level, checking ........................................... 8-29
Brake lever free play, checking the front ..................... 8-30
Brake lever, front ........................................................... 4-8
Brake levers, checking and lubricating ........................ 8-37
Brake light switches ..................................................... 8-36
Brake pads and shoes, checking ................................ 8-28
Brake pedal and rear brake lever ................................... 4-8
Brake pedal, checking and lubricating ........................ 8-38
Brakes .......................................................................... 8-27
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................ 8-36
Carburetor, adjusting ................................................... 8-25
Carrier, front ................................................................. 4-16
Carrier, rear .................................................................. 4-16
Chassis fasteners .......................................................... 5-6
Cleaning ......................................................................... 9-1DDifferential gear oil ......................................................... 5-3
Differential gear oil, changing ...................................... 8-18
Drive select lever ......................................................... 4-10
Drive select lever and driving in reverse ........................ 6-3Drive select lever safety system cable, adjusting ........ 8-27
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 .................................. 8-11
Engine, starting a warm ................................................. 6-3
Engine stop switch ........................................................ 4-5FFinal gear oil ......................................................... 5-3, 8-15
Four-wheel-drive indicator light ..................................... 4-3
Fuel ....................................................................... 4-11, 5-3
Fuel cock ..................................................................... 4-12
Fuel tank cap ............................................................... 4-10
Fuses, replacing .......................................................... 8-42HHandlebar switches ....................................................... 4-5
Headlight beam, adjusting ........................................... 8-45
Headlight bulb, replacing ............................................. 8-44
Horn switch .................................................................... 4-5IIdentification numbers ................................................. 11-1
Indicator lights and warning light ................................... 4-2
Instruments, lights and switches ................................... 5-6LLabel locations ............................................................... 1-1
Light switch ................................................................... 4-5
U1NS63E0.book Page 1 Monday, March 10, 2014 9:05 AM