YAMAHA XS-1 653 (1970 - 1980) Description & History: The Yamaha XS 650 was produced from 1970 to 1980 and in the US the last model appeared in 1984. The first model was named XS-1, followed by XS-1B in 1971, XS-1 in 1972.
YAMAHA XS-1 653 1970 - 1980 Full Specifications:Brand: YAMAHA, Model: XS, Type: XS-1 1970, Name Year: XS-1 653 1970 - 1980, Engine Type: Air Cooled, Four Stroke, Parallel Twin Cylinder, SOHC, 2 Valves Per Cylinder, Displacement: 343 cm3, Bore Xstroke: 2.9x2.9 in OR 73.7x73.7 mm, Compression: 8.4:1, Horsepower: 39(53)/7200 KW(hp)/RPM, Torque: 39.8/6800 lb-ft/RPM OR 54/6800 Nm/RPM, Fuel System: 2xMikuni Carburetors, Gearbox: 5 Speed, Clutch: -, Primary Drive: -, Final Drive: Chain, Frame: -, Front Suspension: Telescopic Forks, Rear Suspension: Dual Shock Absorbers, Front Brake: Drum, Rear Brake: Drum, Length: -, Width: -, Seat Height: -, Wellbase: -, Ground Clearance: -, Weight: -, Fuel Capacity: -, Tyres Front: 3.50-19, Tyres Rear: 4.00-18.