Yamaha DT50M
The Yamaha DT50M is an entry-level 50 cc (3.1 cu in) motorcycle in the Yamaha DT50M series, produced from 1978 to 1981. It is a dual-purpose street/trail bike primarily aimed at novice motorcyclists.
| Manufacturer | Yamaha |
|---|---|
| Production | 1978–1981 |
| Successor | DT50MX |
| Class | Dual-sport |
| Engine | 49 cc (3.0 cu in), 2-stroke, torque Induction, single |
| Bore / stroke | 40.0 mm × 39.7 mm (1.57 in × 1.56 in) |
| Compression ratio | 5.7:1 |
| Ignition type | Kick starter |
| Transmission | 5-speed manual, Multi-plate wet, gear |
| Suspension | Front: Telescopic forks Rear; Twin shock swingarm |
| Brakes | Front: Drum Rear: Drum |
| Wheelbase | 1,210 mm (48 in) |
| Dimensions | L: 1,860 mm (73 in) W: 805 mm (31.7 in) H: 1,045 mm (41.1 in) |
| Seat height | 780 mm (31 in) |
| Weight | 72 kg (159 lb) (dry) 80 kg (180 lb)[1] (wet) |
| Fuel capacity | 4.7 l (1.2 US gal) |
| Oil capacity | 1.2 l (0.32 US gal) |
The DT50M has twin rear shocks and 19"/17" front and rear wheels. The DT50MX, which is a later model of the DTM50M, has larger 21"/18" wheels and a mono shock rear suspension. After its production and high sales, Yamaha decided to produce a street bike variant of the DT50M, which was given the model number RD50M.
The Yamaha DT50MX was given similar treatment to the Yamaha RD50MX.
Identification (UK)
| Model | Frame/Engine number | Production code | Model year |
| DT50M | 2M9-000101 on | 2M9 | 1978 |
| DT50M | 2M9-100101 on | 2M9 | 1979 |
| DT50M | 2M9-200101 on | 2M9 | 1980 |
Note: The Model year is not necessarily the same as the year of sale or first registration.
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