The Yamaha MR50 motorcycle specifications include a 49 cc (2.99 cu in) engine and a listed weight of 77 kg (169.8 lb).
Key specifications
How the Yamaha MR50 compares
This compares the motorcycle with all Yamaha models in this specifications database. The blue marker is this model and the grey line is the Yamaha database average.
About 91% lower than the Yamaha database average. Around the 5th percentile across Yamaha models.
About 59% lighter than the Yamaha database average. Around the 3rd percentile across Yamaha models.
About 7% lower than the Yamaha database average. Around the 23rd percentile across Yamaha models.
About 50% smaller than the Yamaha database average. Around the 16th percentile across Yamaha models.
Yamaha database percentile rankings
Percentiles show where this motorcycle sits across the Yamaha specifications database. They are descriptive database rankings, not performance ratings.
49 cc — larger displacement than about 5% of Yamaha models.
77 kg — heavier than about 3% of Yamaha models, or lighter than about 97%.
740 mm — taller than about 23% of Yamaha models.
6.5 L — larger than about 16% of Yamaha fuel tanks in this database.
Dimensions compared with Yamaha average
Each measurement is compared with the average value across Yamaha models where that dimension is available.
1,835
2,082
12% below average.
770
823
6% below average.
1,020
1,172
13% below average.
1,180
1,416
17% below average.
740
793
7% below average.
205
181
13% above average.
Mechanical overview
Additional useful specifications
| Front tire size | 2.50-18-4PR |
|---|---|
| Rear tire size | 3.00-16-4PR |
| Engine oil capacity | 1.30 L (1.37 US qt) |
| Bore/stroke ratio | 1.01:1 (Square) |
Model information
| Year released | 1980 |
|---|
Engine specifications
| Engine type | Single cylinder, two-stroke |
|---|---|
| Displacement | 49 cc (2.99 cu in) |
| Bore × stroke | 40.0 x 39.7 mm (1.6 x 1.6 inches) |
| Compression ratio | 6.0:1 |
| Cooling system | Air |
| Fuel system | Carburettor. VM16SH carburetor |
| Ignition | magneto ignition |
| Starter | Kick |
| Oil capacity | 1.30 L (1.37 US qt) |
Transmission and drivetrain
| Clutch | Wet multi-disc |
|---|
Chassis and suspension
| Frame | Semi-double cradle, steel tubular |
|---|---|
| Front suspension | Telescopic |
| Rear suspension | Swing arm monocross suspension |
| Rake | 27.3° |
| Trail | 94 mm (3.7 inches) |
Brakes, wheels and tires
| Front brakes | Expanding brake (drum brake). Mechanical drum brake Leading – Trailing |
|---|---|
| Rear brakes | Expanding brake (drum brake). Mechanical drum brake Leading – Trailing |
| Front tire | 2.50-18-4PR |
| Rear tire | 3.00-16-4PR |
| Wheels | Chrome multi-spoke |
Dimensions and weight
| Wet weight | 77 kg (169.8 lb) |
|---|---|
| Dry weight | 70 kg (154.3 lb) |
| Seat height | 740 mm (29.1 inches) |
| Overall length | 1,835 mm (72.2 inches) |
| Overall width | 770 mm (30.3 inches) |
| Overall height | 1,020 mm (40.2 inches) |
| Wheelbase | 1,180 mm (46.5 inches) |
| Ground clearance | 205 mm (8.1 inches) |
| Carrying capacity | Chrome rear pack rack. |
Fuel and emissions
| Fuel capacity | 6.50 L (1.72 US gal) |
|---|
Performance
| Top speed | 100.0 km/h (62.1 mph) |
|---|
Electrical and instruments
| Instruments | Speedometer, tachometer, neutral, flasher and oil warning |
|---|---|
| Lights | Headlight 6v 25/25W and taillight 6v 17/5.3W |
Other specifications
| Color options | Yellow/Black and Grey/Black |
|---|---|
| Seat | Plain |
| Exhaust system | Single pipe |
| Factory warranty | Japan |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Yamaha models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Yamaha information before relying on them. Visit the official Yamaha website.