Yamaha XS 650 (1970)

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The Yamaha XS 650 (XS-1B) is a classic motorcycle model produced in 1970. It boasts a four-stroke, parallel twin-cylinder engine with a capacity of 653cc and a maximum power output of 39.5 kW. The engine features a single overhead camshaft and two valves per cylinder, paired with a wet sump lubrication system and 2 Mikuni BS38 carburetors for fuel delivery. The bike utilizes a battery and induction coil for ignition and has kickstarting capabilities. The XS 650 features a 5-speed transmission and a chain final drive. The suspension system includes telescopic forks in the front and dual shock absorbers in the rear. Both the front and rear brakes are drum brakes, and the bike has a top speed of 185 km/h (115 mph). The XS 650 has a length of 2175mm, a width of 905mm, and a height of 1135mm, with a wheelbase of 1410mm and a ground clearance of 150mm. The dry weight of the bike is 185kg, and it has a fuel capacity of 12.5 liters and an oil capacity of 3.0 liters. Overall, the Yamaha XS 650 is a classic motorcycle model with impressive specifications and capabilities.

Technical specifications:

Make Model: Yamaha XS 650 (XS-1B)

Year: 1970


Engine: Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder.
Capacity: 653 cc / 39.8 cu in
Bore x Stroke: 75 x 74 mm
Compression Ratio: 8.4:1
Cooling System: Air cooled
Lubrication: Wet sump
Induction: 2 x Mikuni BS38 carburetors
Ignition: Battery, induction coil
Starting: Kick
Max Power: 39.5 kW / 53 hp @ 7200 rpm
Max Torque: 54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm
Transmission: 5 Speed
Final Drive: Chain
Front Suspension: Telescopic forks
Rear Suspension: Dual shock absorbers

Front Brakes: Drum
Rear Brakes: Drum
Front Tyre: 3.50-19
Rear Tyre: 4.00-18
Dimensions: Length: 2175 mm / 85.6″Width: 905 mm / 35.0″Height: 1135 mm / 44.7″
Wheelbase: 1410 mm / 55.5″
Ground Clearance: 150 mm / 5.5″
Dry Weight: 185 kg / 408 lbs
Fuel Capacity: 12.5 Litres / 3.3 US gal
Oil Capacity: 3.0 Litres / 3.2 US qts
Top Speed: 185 km/h / 115 mph

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