The Yamaha YSR50 is a miniature motorcycle that was produced and sold by Yamaha during the late 1980s and early 1990s. The bike featured an air-cooled 50 cc (3.1 cu in) two-stroke engine. The engine was sometimes swapped out for a larger variety. [1] Its first production year was 1986, and it was last made in 1992.

Looking to buy a Yamaha Ysr50 motorcycle? Browse our extensive inventory of new and used Yamaha Ysr50 motorcycles from local Yamaha dealers and private sellers. Compare prices, …

1990 Yamaha Ysr50, Super fun moped for racing around town - This YSR 50 has 20mm milkuni carb, boyesen reeds, calamari racing pipe and nology plug wire. Stock oil injection is still connected.

Aug 14, 2020 · The original YSR engine was an air-cooled 49cc two-stroke, with reed valve induction, with five-speed gearbox and a kickstarter (how many sportbikes come with a kickstarter these days?). Supposedly, it made 7 horsepower at 8,800 rpm, and a very modest 4-ish foot-pounds of torque at 8,500 rpm.

The Yamaha YSR50 was a miniature motorcycle that was produced and sold by Yamaha during the late eighties and early nineties. The bike featured an air-cooled 50cc two-stroke engine. Its first production year was 1987, and it was last made in 1992. American Motorcyclist magazine stated its top speed was 38 mph.

This 50cc sport model had the look of a re-shaped, scaled-down YZR500 factory racer that appealed to the spirit of race enthusiasts in a playful way. The 2-stroke single-cylinder engine …

This bike features a 50cc two- stroke engine, air-cooled with reed valve, a Mikuni VM16SH carburetor, a 5-speed constant mesh transmission, GiGi style 2-stroke... We installed a new battery, cleaned out and adjusted the carburetor, rebuilt the petcock, flushed and bled the brake. Very rare in this nice condition.