Yamaha DT50M

A yamaha DT50 in someone's backyard
Manufacturer	Yamaha
Production	1978 – 1981
Successor	DT50MX
Class	Moped
Engine	49 cc 2-stroke Torque Induction Single
Transmission	5-speed, 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 (160 lb) (dry)
Fuel capacity	4.7 l (1.2 US gal)
Oil capacity	1.2 l (0.32 US gal)

The Yamaha DT50M was the entry level 50cc in the Yamaha DT series. Production started 1978 and ended 1981.

It was a dual purpose street/trail bike aimed at the 16 years age group of moped riders taking their first steps into motorcycling.

From 1978 onwards, all new mopeds were restricted to 30 mph in the UK. The selling point of the DT50M was style and off road riding as opposed to out-right speed of the FS1E of previous years.

The DT50M had a 'sister' bike in the form of the TY50M which was designed as a Trial-bike/moped. It shared many aspects including the 50cc engine. The TY50 however had been manufactured before 1978 and early models were unrestricted (30 mph) but had pedals which qualified them as a moped pre 1978. However, although unrestricted it's safe to say, they were not built for speed with torquie engines and high gearing.

Engine and transmission

Identification (uk)

It should be noted that the Model year is not necessarily the same as the year of sale or first registration.

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