Yamaha YZ 450Fback 2009 forward

Water cooled, 449cc, Single, DOHC

Final drive: Chain
Dry weight: 220.5 lbs
Category: Offroad
Tags: Cross
Engine and transmission
Engine type: 1 cylinders, 4-stroke, Single
Displacement: 449 cc (27.43 cubic inches)
Bore × stroke: 3.74 inch × 2.5 inch (oversquare - shortstroke)
Cooling system: Water cooled
Throttle: Cable operated
Valves
Valve train: DOHC, variable
Valves per cylinder: 5
Fuel and ignition
Sparks per cylinder: 1
Fuel supply system: Carburetor
Ignition type: Digital CDI
Funnel diameter: 1.54 inch
Compression: 12.3:1
Engine mounting: Transverse
Lubrication system: Dry sump
Gear box: Manual 5-speed
Clutch: Wet, multiple discs, cable operated
Final drive: Chain
Spark plug pipe type: NGK, CR8E
Motor oil: Synthetic, 10W/40
Starter: Kick-starter
Dimensions
Physical measures
Length: 86.4 inch
Width: 32.5 inch
Height: 51.4 inch
Wheel base: 58.9 inch
Ground clearance: 14.69 inch
Seat height: 38.9 inch
Weight
Dry weight: 220.5 lbs
Chassis and suspension
Frame type: aluminium, Double cradle frame
Front
Suspension: Cartridge - upside-down
Suspension travel: 11.81 inch
Fork angle: 26°
Brake: Single Disk, Ø9.84 inch
Tire: 80 / 80 R21 M
Tire pressure: 0.07 PSI
Rear
Suspension: mono shock, Swingarm
Suspension travel: 123.23 inch
Brake: Disk, Ø9.65 inch
Tire: 120 / 80 R19 M
Tire pressure: 0.07 PSI
Other
ABS available: No
Fuel capacity: 1.8 gals
Number of riders: 2 persons

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