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EBU19550
Fuel and 2-stroke engine oil mixing
ratio
If Yamalube “R” oil is not available, select an oil
from the following list.
CAUTION:
ECB00140
Never mix two types of 2-stroke engine oil in
the same batch. Always use the same type of
oil to ensure maximum engine performance.
EBU19580
Transmission oil
Make sure that the transmission oil is at the speci-
fied level. Add oil as necessary. (See page 8-9.)
EBU19630
Coolant
Make sure that the coolant is at the specified level.
Add coolant as necessary. (See page 8-11.)
NOTE:
The coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture.WARNING
EWB00510
Wait for the engine and radiator to cool before
removing the radiator cap. You could be
burned by hot fluid and steam blown out under
pressure. Always put a thick rag over the cap
when opening. Allow any remaining pressure
to escape before completely removing the cap.
EBU19710
Front and rear brakes
Brake lever and brake pedal
Check that there is no free play in the brake le-
ver. If there is free play, have a Yamaha dealer
check the brake system.
Check for correct brake pedal height. (See Recommended 2-stroke engine oil:
Yamalube “R” (Yamalube Racing 2-cycle oil)
Mixing ratio:
24:1
Recommended 2-stroke engine oil Mixing ratio
Castrol R30
20:1 Castrol A545
Castrol A747
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a spark plug, a good estimate of the correct torque
is 1/4–1/2 turn past finger tight. However, the spark
plug should be tightened to the specified torque as
soon as possible.
4. Install the spark plug cap.
EBU23341
Transmission oil
The transmission oil level should be checked be-
fore each ride. In addition, the transmission oil
must be changed at the intervals specified in the
periodic maintenance and lubrication chart.
To check the transmission oil level
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Wait a few minutes until the oil settles, remove
the oil filler cap, wipe the dipstick off with a
clean rag, insert it back into the oil filler hole
(without screwing it in), and then remove it
again to check the oil level.NOTE:
The transmission oil should be between the mini-
mum and maximum level marks.
4. If the oil is at or below the minimum level mark,
add sufficient oil of the recommended type to
raise it to the correct level.
5. Insert the dipstick into the oil filler hole, and
then tighten the oil filler cap.
To change the transmission oil
1. Place the ATV on a level surface.
1. Dipstick
2. Maximum level mark
3. Minimum level mark
12
3
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Rear brake
Observe these precautions:
When checking the fluid level, make sure that
the top of the brake fluid reservoir is level.
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.
EBU24290
Changing the brake fluid
Have a Yamaha dealer change the brake fluid at
the intervals specified in the NOTE after the peri-
odic maintenance and lubrication chart. In addi-
tion, have the oil seals of the master cylinders 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.
EBU24390
Checking the front brake lever free play
The brake lever free play must be checked at the
1. Minimum level mark
Recommended brake fluid:
DOT 4
LOWER
1
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EBU25960
SPECIFICATIONS
EBU25977
Dimensions:
Overall length:
1855 mm (73.0 in)
Overall width:
1100 mm (43.3 in)
Overall height:
1080 mm (42.5 in)
Seat height:
800 mm (31.5 in)
Wheelbase:
1280 mm (50.4 in)
Ground clearance:
135 mm (5.3 in)
Minimum turning radius:
3600 mm (142 in)
Weight:
With oil and fuel:
187.0 kg (412 lb)
Engine:
Engine type:
Liquid cooled 2-stroke
Cylinder arrangement:
Forward-inclined parallel 2-cylinder
Displacement:
347.0 cm
3
Bore
×
stroke:
64.0
×
54.0 mm (2.52
×
2.13 in)Compression ratio:
6.50 :1
Starting system:
Kickstarter
Lubrication system:
Premix
Type:
YAMALUBE 2-R, Castrol R30, A545, A747
Engine oil quantity:
Mixing ratio:
YAMALUBE R 24:1
Transmission oil:
Type:
SAE10W30 type SE motor oil (EUR)
YAMALUBE 4 (10W30) or SAE10W30 type SE motor oil
(AUS)(NZL)
Quantity:
1.5 L (1.59 US qt) (1.32 Imp.qt)
Cooling system:
Coolant reservoir capacity (up to the maximum level mark):
0.28 L (0.30 US qt) (0.25 Imp.qt)
Radiator capacity (including all routes):
1.50 L (1.59 US qt) (1.32 Imp.qt)
Air filter:
Air filter element:
Wet element
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Size:
AT20 x 10-9
Manufacturer/model:
DUNLOP/KT877A
Loading:
Maximum loading limit:
100.0 kg (220 lb)
(Total weight of rider, cargo, accessories, and tongue)
Tire air pressure (measured on cold tires):
Recommended:
Front:
30.0 kPa (4.4 psi) (0.300 kgf/cm
2
)
Rear:
30.0 kPa (4.4 psi) (0.300 kgf/cm
2
)
Minimum:
Front:
27.0 kPa (3.9 psi) (0.270 kgf/cm
2
)
Rear:
27.0 kPa (3.9 psi) (0.270 kgf/cm
2
)
Maximum:
Front:
33.0 kPa (4.8 psi) (0.330 kgf/cm
2
)
Rear:
33.0 kPa (4.8 psi) (0.330 kgf/cm
2
)
Front wheel:
Wheel type:
Panel wheel
Rim size:
10 x 6.0AT
Rear wheel:
Wheel type:
Panel wheel
Rim size:
9 x 8.5AT
Front brake:
Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
Rear brake:
Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
Front suspension:
Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
230 mm (9.1 in)
Rear suspension:
Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper