Yamaha TR1: history, specs, pictures

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Yamaha TR 1
Production 1981 - 1983
v2, four-stroke
Bore / Stroke 95.0mm x 69.2mm
Top Speed 113 mph (182 km/h)
Horsepower 67.59 HP (50.4 KW) @ 6500RPM
Spark Plug NGK B8ES '70-71
Battery YUASA 6N2-2A-3 '70-71
Transmission Gear box: 5-speed
Final Drive: chain
Final Drive Chain: 520 `70-71[1]
Brakes Front: dual disc
Rear: expanding brake
Front Tire 3.25-19
Rear Tire 120/90-18
Weight 248.0 kg (wet)
Recommended Oil Yamalube 10w-40
Fuel Capacity 5.02 Gallon (19.00 Liters)
Manuals Service Manual

The Yamaha TR 1 was a v2, four-stroke standard produced by Yamaha between 1981 and 1983. It could reach a top speed of 113 mph (182 km/h). Claimed horsepower was 67.59 HP (50.4 KW) @ 6500 RPM.


The engine was a air cooled v2, four-stroke. A 95.0mm bore x 69.2mm stroke result in a displacement of just 981.0 cubic centimeters. Fuel was supplied via a overhead cams (ohc).


The bike has a 5-speed transmission.


It came with a 3.25-19 front tire and a 120/90-18 rear tire. Stopping was achieved via dual disc in the front and a expanding brake in the rear. The TR 1 was fitted with a 5.02 Gallon (19.00 Liters) fuel tank.


  1. 2019 Western Power Sports Catalog. Western Power Sports. 2019.