Yamaha R 3: history, specs, pictures

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Yamaha R 3
Manufacturer Yamaha
Production 1970
Engine twin, two-stroke
Bore / Stroke 61.0mm x 59.0mm
Top speed 103 mph (165 km/h)
Horse Power 35.27 HP (26.3 KW) @ 7000RPM
Battery 7.5:1
Transmission Gear box: 5-speed
Final Drive: chain
Brakes Front: expanding brake
Rear: expanding brake
Front Tire 3.00-18
Rear Tire 3.50-18
Weight  (dry), 154.0 kg (wet)
Fuel capacity 3.96 Gallon (15.00 Liters)
Manuals Service Manual
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The Yamaha R 3 was a twin, two-stroke standard produced by Yamaha in 1970. It could reach a top speed of 103 mph (165 km/h). Claimed horsepower was 35.27 HP (26.3 KW) @ 7000 RPM.

Engine

The engine was a air cooled twin, two-stroke. A 61.0mm bore x 59.0mm stroke result in a displacement of just 345.0 cubic centimeters. Fuel was supplied via a port control.

Drive

The bike has a 5-speed transmission.

Chassis

It came with a 3.00-18 front tire and a 3.50-18 rear tire. Stopping was achieved via expanding brake in the front and a expanding brake in the rear. The R 3 was fitted with a 3.96 Gallon (15.00 Liters) fuel tank.