Yamaha YFZ450
ENGINE
Type 449cc liquid-cooled w/fan, 4-stroke; DOHC, 5 valves
Bore x Stroke 95.0mm x 63.4mm
Compression Ratio 11.4:1
Fuel Delivery Mikuni® 42mm BSR
Ignition DC - CDI
Starting System Electric
Transmission 5-speed; wet multiplate clutch
Drive Train 2WD; sealed O-ring chain, eccentric adjustment




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