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Key Specifications
Engine
Single cylinder, four-stroke
Weight
111.1 kg / 245.0 lbs
Fuel Capacity
6.17 litres / 1.63 gallons
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Full 2011 Yamaha YZ450F Specifications
Colours
White/Red, Team Yamaha Blue/White)
Warranty
30 Day (Limited Factory Warranty)
Ground Clearance (mm)
381 mm
Ground Clearance (in.)
15.0 inches
Seat Height
998 mm / 39.3 in.
Wheelbase
1,491 mm / 58.7 in.
Height
1,311 mm / 51.6 in.
Length
2,192 mm / 86.3 in.
Width
823 mm / 32.4 in.
Oil Capacity (Quarts)
0.08 quarts
Oil Capacity (l)
1.20 litres
Fuel Capacity
6.17 litres / 1.63 gallons
Wet Weight
111.1 kg / 245.0 lbs
Fuel Control
DOHC
Bore x Stroke (in,)
3.8 x 2.4 inches
Bore x Stroke (mm)
97.0 x 60.8 mm
Engine Type
Single cylinder, four-stroke
Displacement (ci)
27.40 cubic inches
Displacement (cc)
449.00 cc
Engine Detail
Titanium valves
Fuel System
Injection. Yamaha Fuel Injection (YFI), Keihin 44mm
Compression Ratio
12.5:1
Engine Lubrication
Dry sump
Ignition
CDI
Starter
Electric
Valve System
4
Final Drive
Chain
Gearbox
5-speed
Primary Drive
2WD; Sealed O-Ring Chain, Eccentric Adjustment
Suspension - Front
KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel
Suspension - Rear
KYB Fully adjustable single shock
Wheel Travel - Rear
315 mm / 12.4 in.
Lighting system
Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light
Brakes - Rear Diameter (mm)
245 mm
Brakes - Rear Diameter (in.)
9.6 inches
Brakes - Front Diameter (mm)
250 mm
Brakes - Front Diameter (in.)
9.8 inches
Brakes - Front
Single disc
Brakes - Rear
Single disc
Tyres - Front
80/100-21
Tyres - Rear
120/80-19
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