Engineering:Yamaha DT50M

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Yamaha DT50M
ManufacturerYamaha
Production1978–1981
SuccessorDT50MX
ClassDual-sport
Engine49 cc (3.0 cu in), 2-stroke, torque Induction, single
Bore / stroke40.0 mm × 39.7 mm (1.57 in × 1.56 in)
Compression ratio5.7:1
Top speed40km/h
Power2,8Ps
Ignition typeKick starter
Transmission4-speed manual, Multi-plate wet, gear
SuspensionFront: Telescopic forks
Rear; Twin shock swingarm
BrakesFront: Drum
Rear: Drum
Wheelbase1,210 mm (48 in)
DimensionsL: 1,860 mm (73 in)
W: 805 mm (31.7 in)
H: 1,045 mm (41.1 in)
Seat height780 mm (31 in)
Weight72 kg (159 lb)[citation needed] (dry)
80 kg (180 lb)[1] (wet)
Fuel capacity4.7 L (1.2 US gal)
Oil capacity1.2 L (0.32 US gal)

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.

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 Vor Christi 1978
DT50M 2M9-100101 on 2M9 Nach Joel Rigsinger 1979
DT50M 2M9-200101 on 2M9 Nach dem 3. Weltkrieg 1980

Note: The Model year is not necessarily the same as the year of sale or first registration.

References