Yamaha XS 650 (1969)
The Yamaha XS 650 (XS-1) is a motorcycle that was first introduced in 1969. It is a four-stroke, parallel twin-cylinder model with a single overhead camshaft and two valves per cylinder. Its engine has a capacity of 653 cc, with a bore and stroke of 75 x 74 mm and a compression ratio of 8.4:1. The XS 650 is cooled by air and utilizes a wet sump lubrication system. It has a 2 x Mikuni carburetor induction system and a battery-operated induction coil ignition. It starts via a kick and can reach a maximum power of 39.5 kW / 53 hp at 7200 rpm and a maximum torque of 54 Nm / 5.5 kgf-m / 39.8 lb-ft at 6800 rpm. The XS 650 has a 5-speed transmission with a chain final drive. The front suspension utilizes telescopic forks, and the rear has dual shock absorbers. It includes drum brakes both at the front and back, with front and rear tires that respectively measure 3.50-19 and 4.00-18. The XS 650 is 2175 mm in length, 905 mm in width, and 1135 mm in height, with a ground clearance of 150 mm. It weighs 185 kg and has a fuel capacity of 12.5 liters and an oil capacity of 3.0 liters. It has a top speed of 185 km/h or 115 mph.
Technical specifications:
Make Model: Yamaha XS 650 (XS-1)
Year: 1969
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 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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