Yamaha CS5: history, specs, pictures

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Yamaha CS5
Manufacturer
Also called CS5 Street
Production 1972
Successor Yamaha RD200
Engine
twin, two-stroke
Bore / Stroke 52.0mm x 46.0mm
Top Speed 84 mph (135 km/h)
Horsepower 21.59 HP (16.1 KW) @ 7500RPM
Torque 15.71 ft/lbs (21.3 Nm) @ 7000RPM
Fuel System carburetor. vm20sc x 2
Ignition battery
Transmission Gear box: 5-speed

Final Drive: chain

Clutch: multi-disc, wet
Suspension Front: telescopic fork
Rear: swing arm
Brakes Front: expanding brake (drum brake). right hand operation, cable actuated
Rear: expanding brake (drum brake). right foot operation, rod actuated
Front Tire 3/18-4pr
Rear Tire 3/18-4pr
Wheelbase 49.02 inches (1245 mm)
Length 76.18 inches (1935 mm)
Width 32.87 inches (835 mm)
Height 40.75 inches (1035 mm)
Weight 257.94 pounds (117.0 Kg) (dry),
Oil Capacity 0.5 Gallon (1.90 Liters)
Recommended Oil Yamalube 10w-40
Fuel Capacity 2.38 Gallon (9.00 Liters)
Fuel Consumption 2.85 liters/100 km (35.1 km/l or 82.53 mpg)
Manuals Service Manual


The Yamaha CS5 was a twin, two-stroke standard produced by Yamaha in 1972. It could reach a top speed of 84 mph (135 km/h). Max torque was 15.71 ft/lbs (21.3 Nm) @ 7000 RPM. Claimed horsepower was 21.59 HP (16.1 KW) @ 7500 RPM.

Engine[edit]

A 52.0mm bore x 46.0mm stroke result in a displacement of just 195.0 cubic centimeters. Fuel was supplied via a port control.

Drive[edit]

The bike has a 5-speed transmission. Power was moderated via the multi-disc, wet.

Chassis[edit]

It came with a 3/18-4pr front tire and a 3/18-4pr rear tire. Stopping was achieved via expanding brake (drum brake). right hand operation, cable actuated in the front and a expanding brake (drum brake). right foot operation, rod actuated in the rear. The front suspension was a telescopic fork while the rear was equipped with a swing arm. The CS5 was fitted with a 2.38 Gallon (9.00 Liters) fuel tank. The bike weighed just 257.94 pounds (117.0 Kg). The wheelbase was 49.02 inches (1245 mm) long.

1972[edit]