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8-12
8
5. If the engine oil is at or below the minimum
level mark, add sufficient oil of the recom-
mended type to raise it to the correct level.
NOTICE: Be sure the engine oil is at the
correct level, otherwise engine damage
may result.
[ECB00851]
6. Insert the dipstick into the oil filler hole, and
then tighten the engine oil filler cap.To change the engine oil (with or without oil fil-
ter element cleaning)
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. Place an oil pan under the engine to collect
the used oil.
4. Remove the engine oil filler cap, and then re-
move the engine oil drain bolt to drain the oil
from the crankcase. NOTICE: When remov-
ing the engine oil drain bolt, the compres-
sion spring, oil strainer and O-ring will fall
out. Take care not to lose these parts.
[ECB00311]
1. Engine oil dipstick
2. Maximum level mark
3. Minimum level mark
4. Engine oil filler capU1BS61E0.book Page 12 Tuesday, April 13, 2010 10:25 AM
Page 104 of 138

8-24
8Front brake
Rear brakeObserve 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.
1. Minimum level mark
1. Minimum level mark
1
Recommended brake fluid:
DOT 4
U1BS61E0.book Page 24 Tuesday, April 13, 2010 10:25 AM
Page 130 of 138
10-1
10
EBU25960
SPECIFICATIONS
Dimensions:Overall length:
1780 mm (70.1 in)
Overall width:
1095 mm (43.1 in)
Overall height:
1080 mm (42.5 in)
Seat height:
820 mm (32.3 in)
Wheelbase:
1210 mm (47.6 in)
Ground clearance:
115 mm (4.5 in)
Minimum turning radius:
3100 mm (122 in)Weight:With oil and fuel:
180.0 kg (397 lb)Noise and vibration level:Noise level (77/311/EEC):
YFM35RA 84.3 dB(A)@3500 r/min
Noise level 40 CFR Part 205 Subpart D (Acceleration):
YFM35RA 79.3 dB(A)
Vibration on seat (EN1032, ISO5008):
YFM35RA Will not exceed 0.5 m/s²
Vibration on handlebar (EN1032, ISO5008):
YFM35RA Will not exceed 2.5 m/s²
Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
349 cm³
Bore × stroke:
83.0 × 64.5 mm (3.27 × 2.54 in)
Compression ratio:
9.20 :1
Starting system:
Electric starter
Lubrication system:
Wet sumpEngine oil:Recommended brand:
YAMALUBE
U1BS61E0.book Page 1 Tuesday, April 13, 2010 10:25 AM
Page 131 of 138

10-2
10
Type:
SAE 5W-30, 10W-30, 10W-40, 15W-40, 20W-40 or 20W-
50
Recommended engine oil grade:
API service SG type or higher, JASO standard MA
Engine oil quantity:
Without oil filter element replacement:
2.50 L (2.64 US qt, 2.20 Imp.qt)
With oil filter element replacement:
2.60 L (2.75 US qt, 2.29 Imp.qt)Air filter:Air filter element:
Wet elementFuel:Recommended fuel:
YFM350RA Unleaded gasoline only
YFM35RA Regular unleaded gasoline onlyFuel tank capacity:
9.0 L (2.38 US gal, 1.98 Imp.gal)
Fuel reserve amount:
2.7 L (0.71 US gal, 0.59 Imp.gal)
Carburetor:Type × quantity:
BSR36 x 1Spark plug (s):Manufacturer/model:
NGK/DR8EA
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-disc
Operation:
Left hand operationTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
76/24 (3.166)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
38/13 (2.923)
Transmission type:
Constant mesh 6-speed.forward, 1-speed.reverse
Operation:
Left foot operation
0 10 30 50 70 90 110 130 ˚F
–20 –10 0 10 20 30 40 50 ˚CSAE 5W-30
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40SAE 20W-50
U1BS61E0.book Page 2 Tuesday, April 13, 2010 10:25 AM
Page 133 of 138
10-4
10
Rim size:
9 x 8.0ATFront brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4Front suspension:Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
200 mm (7.9 in)Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
210 mm (8.3 in)
Electrical system:Ignition system:
DC CDI
Charging system:
AC magnetoBattery:Model:
YTZ10S
Voltage, capacity:
12 V, 8.6 AhHeadlight:Bulb type:
Krypton bulbBulb voltage, wattage × quantity:Headlight:
12 V, 30/30 W × 2
Tail/brake light:
12 V, 5.0/21.0 W × 1
Neutral indicator light:
12 V, 1.7 W × 1
Reverse indicator light:
12 V, 1.7 W × 1Fuse:Fuse:
15.0 A
U1BS61E0.book Page 4 Tuesday, April 13, 2010 10:25 AM