Yamaha TY50: history, specs, pictures

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Yamaha TY50
Manufacturer
Also called TY50p, TY 50
Production 1976
Engine
single cylinder, two-stroke
Bore / Stroke 40.0mm x 39.7mm
Top Speed 37 mph (60 km/h)
Horsepower 2.82 HP (2.1 KW) @ 5500RPM
Torque 0.3 ft/lbs (0.4 Nm) @ 5500RPM
Fuel System carburetor. mikuni
Transmission Gear box: 5-speed

Final Drive: chain

Clutch: wet plate
Suspension Rear: twin shock
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 250/19-4pr
Rear Tire 300/17-4pr
Wheelbase 70.87 inches (1800 mm)
Length 46.85 inches (1190 mm)
Width 30.51 inches (775 mm)
Height 38.39 inches (975 mm)
Weight 171.96 pounds (78.0 Kg) (dry),
Recommended Oil Yamalube 10w-40
Fuel Capacity 1.24 Gallon (4.70 Liters)
Manuals Service Manual


The Yamaha TY50p was a single cylinder, two-stroke standard produced by Yamaha in 1976. It could reach a top speed of 37 mph (60 km/h). Max torque was 0.3 ft/lbs (0.4 Nm) @ 5500 RPM. Claimed horsepower was 2.82 HP (2.1 KW) @ 5500 RPM.

Engine[edit | edit source]

The engine was a air cooled single cylinder, two-stroke. A 40.0mm bore x 39.7mm stroke result in a displacement of just 50.0 cubic centimeters. Fuel was supplied via a membrane.

Drive[edit | edit source]

The bike has a 5-speed transmission. Power was moderated via the wet plate.

Chassis[edit | edit source]

It came with a 250/19-4pr front tire and a 300/17-4pr rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The TY50p was fitted with a 1.24 Gallon (4.70 Liters) fuel tank. The bike weighed just 171.96 pounds (78.0 Kg). The wheelbase was 70.87 inches (1800 mm) long.