Yamaha WR 400 Fback 1999 forward

Water cooled, 399cc, Single

Final drive: Chain
Category: Offroad
Tags: Enduro
Engine and transmission
Engine type: 1 cylinders, 4-stroke, Single
Displacement: 399 cc (24.38 cubic inches)
Bore × stroke: 3.62 inch × 2.37 inch (oversquare - shortstroke)
Cooling system: Water cooled
Throttle: Cable operated
Valves
Valves per cylinder: 4
Fuel and ignition
Sparks per cylinder: 1
Fuel supply system: Carburetor
Ignition type: Digital CDI
Engine mounting: Vertical
Lubrication system: Wet sump
Gear box: Manual 4-speed
Clutch: Wet, multiple discs, cable operated
Final drive: Chain
Spark plug pipe type: NGK, CR8E
Motor oil: 20W/40
Starter: Kick-starter
Chassis and suspension
Frame type: steel, Single cradle frame
Front
Suspension: Cartridge
Brake: Single Disk
Tire: 80 / 100 R21 M
Tire pressure: 0.07 PSI
Rear
Suspension: mono shock, Swingarm
Tire: 110 / 100 R18 M
Tire pressure: 0.07 PSI
Other
ABS available: No
Fuel capacity: 2.11 gals
Number of riders: 2 persons

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