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10-2
10
Cooling system:Liquid cooled
Valve train: SOHC
Number of cylinders:
Single cylinder
Displacement: 421 cm³
Bore × stroke:
84.5 × 75.0 mm (3.33 × 2.95 in)
Compression ratio:
10.0 : 1
Starting system: Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:YAMALUBE
SAE viscosity grades: 5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50 Recommended engine oil grade:
API service SG type or higher, JASO standard MA
Quantity: Oil change:2.30 L (2.43 US qt, 2.02 Imp.qt)
With oil filter removal: 2.40 L (2.54 US qt, 2.11 Imp.qt)
Final gear oil:Type:Yamaha Friction Modified Shaft Drive Gear Oil
Quantity: 0.38 L (0.40 US qt, 0.33 Imp.qt)Differential gear oil:Type:Yamaha Friction Modified Shaft Drive Gear Oil or SAE 80
API GL-4 Hypoid gear oil
Quantity: 0.35 L (0.37 US qt, 0.31 Imp.qt)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
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10-3
10
Coolant quantity:Radiator (including all routes):1.32 L (1.40 US qt, 1.16 Imp.qt)
Coolant reservoir (up to the maximum level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)Air filter:Air filter element:Wet element
Air filter oil grade:
Foam air-filter oilFuel:Recommended fuel:Regular unleaded gasoline (Gasohol [E10] acceptable)
Minimum research octane:
91
Fuel tank capacity: 14 L (3.7 US gal, 3.1 Imp.gal)
Fuel reserve amount: 4.0 L (1.06 US gal, 0.88 Imp.gal)Throttle body:ID mark:BB51 00Spark plug (s):Manufacturer/model:
NGK/DR7EA
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)Drivetrain:Primary reduction ratio:
1.000 Secondary reduction ratio:
7.944 (39/24 x 24/18 x 33/9)
Final drive: Shaft
Clutch type:
Wet, centrifugal, shoe
Transmission type: CVT automatic with reverse
Gear ratio: Transmission ratio: 2.550–0.750 : 1
Reverse gear: 1.706 (29/17)
Low range:
2.813 (45/16)
High range: 1.652 (38/23)
Front tire:Size:
AT25 x 8-12
Manufacturer/model: CHENG SHIN/CU905Rear tire:Size:
AT25 x 10-12
Manufacturer/model: CHENG SHIN/CU906Tire air pressure (measured on cold tires):Recommended (For Oceania):
Front: 35.0 kPa (0.350 kgf/cm², 5.0 psi)
(YFM45KDXK_AUS/NZL, YFM45KPXK_AUS/NZL)
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12-1
12
INDEX
AAccessories and loading ................................................ 6-5
Accessories, DC jack ...................................................4-18
Air filter, cleaning ......................................................... 8-32
Axle boots .................................................................... 8-46BBattery .......................................................................... 8-52
Brake fluid, changing ...................................................8-41
Brake fluid level, checking ........................................... 8-39
Brake lever free play, checking the front ..................... 8-41
Brake lever, front ............................................................ 4-9
Brake levers, checking and lubricating ........................ 8-48
Brake light switches ..................................................... 8-47
Brake pads and friction plates, checking ..................... 8-39
Brake pedal and rear brake lever ................................... 4-9
Brake pedal, checking and lubricating ........................ 8-49
Brakes .......................................................................... 8-38
Brakes, front and rear .................................................... 5-3
Brake/tail light bulb, replacing ..................................... 8-62CCables, checking and lubricating ................................. 8-48
Carrier, front ................................................................. 4-15
Carrier, rear .................................................................. 4-15
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant ................................................................. 5-3, 8-28
Coolant temperature warning light ................................. 4-2DDifferential gear oil ......................................................... 5-3Differential gear oil, changing ...................................... 8-27
Display unit .................................................................... 4-4
Drive select lever .......................................................... 4-10
Drive select lever and driving in reverse ........................ 6-2
Drive shaft universal joint, lubricating .......................... 8-50
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-19
Engine stop switch ......................................................... 4-6
Engine trouble warning light .......................................... 4-2
EPS warning light (for EPS model) ................................. 4-3FFinal gear oil ......................................................... 5-3, 8-24
Four-wheel drive indicator light ..................................... 4-3
Four-wheel drive switch (On-Command 4WD) .............. 4-7
Fuel ...................................................................... 4-12, 5-3
Fuel tank cap ............................................................... 4-11
Fuses, replacing ........................................................... 8-55HHandlebar switches ....................................................... 4-6
Headlight beam, adjusting ........................................... 8-61
Headlight bulb, replacing ............................................. 8-58
Horn switch .................................................................... 4-7IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-1
Instruments, lights and switches ................................... 5-7
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