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Engine Type
686cc liquid-cooled SOHC 4-stroke; 4 valves
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Cylinders
1
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Engine Stroke
4-Stroke
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Cooling
Liquid
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Valve Configuration
SOHC
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Bore (in)
4.02
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Stroke (in)
3.31
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Displacement (cc)
686
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Carburetion Type
Fuel Injected
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Valves
4
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Valves Per Cylinder
4
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Bore x Stroke
102.0mm x 84.0mm
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Compression ratio
10.0:1
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Fuel Delivery
Yamaha Fuel Injection (YFI)
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Ignition
TCI: Transistor Controlled Ignition
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Transmission
Ultramatic V-belt with all-wheel engine braking; L, H, N, R
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Final Drive
On-Command; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive