Yamaha MR50: history, specs, pictures
| Yamaha MR50 | |
| Manufacturer | |
|---|---|
| Production | 1980 |
| Engine | single cylinder, two-stroke |
| Bore / Stroke | 40.0mm x 39.7mm |
| Top Speed | 62 mph (100 km/h) |
| Fuel System | carburetor. vm16sh carburetor |
| Ignition | magneto ignition |
| Transmission | Clutch: wet multi-disc |
| Suspension | Front: telescopic Rear: swing arm monocross suspension |
| Brakes | Front: expanding brake (drum brake). mechanical drum brake leading - trailing Rear: expanding brake (drum brake). mechanical drum brake leading - trailing |
| Front Tire | 2.50-18-4pr |
| Rear Tire | 3.00-16-4pr |
| Wheelbase | 46.46 inches (1180 mm) |
| Length | 72.24 inches (1835 mm) |
| Width | 30.31 inches (770 mm) |
| Height | 40.16 inches (1020 mm) |
| Seat Height | 29.13 inches (740 mm) |
| Weight | 154.32 pounds (70.0 Kg) (dry), 77.0 kg (wet) |
| Oil Capacity | 0.34 Gallon (1.30 Liters) |
| Recommended Oil | Yamalube 10w-40 |
| Fuel Capacity | 1.72 Gallon (6.50 Liters) |
| Manuals | Service Manual |
The Yamaha MR50 was a single cylinder, two-stroke standard produced by Yamaha in 1980. It could reach a top speed of 62 mph (100 km/h).
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 49.0 cubic centimeters.
Drive[edit | edit source]
Power was moderated via the wet multi-disc.
Chassis[edit | edit source]
It came with a 2.50-18-4pr front tire and a 3.00-16-4pr rear tire. Stopping was achieved via expanding brake (drum brake). mechanical drum brake leading - trailing in the front and a expanding brake (drum brake). mechanical drum brake leading - trailing in the rear. The front suspension was a telescopic while the rear was equipped with a swing arm monocross suspension. The MR50 was fitted with a 1.72 Gallon (6.50 Liters) fuel tank. The bike weighed just 154.32 pounds (70.0 Kg). The wheelbase was 46.46 inches (1180 mm) long.