Yamaha RX125: history, specs, pictures
Manufacturer | Yamaha |
---|---|
Also called | RX 125 |
Production | 1979 |
Class | Road |
Engine | single cylinder, two-stroke |
Bore / Stroke | 56.0mm x 50.0mm |
Horse Power | 12.74 HP (9.5 KW) @ 7000RPM |
Torque | 9.81 ft/lbs (13.3 Nm) @ 7000RPM |
Fuel system | carburettor. mikuni vm24sh |
Ignition type | magneto |
Battery | 6.9:1 |
Transmission | Gear box: 5-speed Final Drive: chain |
Suspension | Front: telescopic forks Rear: swing arm twin shocks |
Brakes | Front: single disc Rear: expanding brake (drum brake) |
Front Tire | 3/0-18 |
Rear Tire | 3/0-18 |
Wheelbase | 48.82 inches (1240 mm) |
Dimensions | L 75.39 inches (1915 mm) W 28.74 inches (730 mm) H 41.73 inches (1060 mm) |
Weight | 211.64 pounds (96.0 Kg) |
Fuel capacity | 2.64 Gallon (10.00 Liters) |
Manuals | Service Manual |
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The Yamaha RX125 was a single cylinder, two-stroke Road motorcycle produced by Yamaha in 1979. Max torque was 9.81 ft/lbs (13.3 Nm) @ 7000 RPM. Claimed horsepower was 12.74 HP (9.5 KW) @ 7000 RPM.
Engine
The engine was a air cooled single cylinder, two-stroke. A 56.0mm bore x 50.0mm stroke result in a displacement of just 125.0 cubic centimeters. Fuel was supplied via a port control.
Drive
The bike has a 5-speed transmission.
Chassis
It came with a 3/0-18 front tire and a 3/0-18 rear tire. Stopping was achieved via single disc in the front and a expanding brake (drum brake) in the rear. The front suspension was a telescopic forks while the rear was equipped with a swing arm twin shocks. The RX125 was fitted with a 2.64 Gallon (10.00 Liters) fuel tank. The bike weighed just 211.64 pounds (96.0 Kg). The wheelbase was 48.82 inches (1240 mm) long.