Yamaha FS1: history, specs, pictures

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Yamaha FS1
Also called FS-1E
Production 1970
Class Minibike
Air Cooled, 2-stroke Reed Valve, Single Cylinder
Compression ratio 6.8:1
Fuel System Carburetor
Transmission Gear box: 5 Speed
Final Drive: Chain
Brakes Front: Drum
Rear: Drum
Front Tire 2.25-17-4PR
Rear Tire 2.50-17-6PR
Recommended Oil Yamalube 10w-40
Manuals Service Manual

When Yamaha's FS-1 was launched to an unsuspecting public in 1970, little did anyone know what a cult bike the little 50cc machine would become.

The 'Fizzie' became the epitome of the new generation of sports mopeds that every 16-year-old lusted after and which gave thousands of future bikers their first motorcycling experience.

What Yamaha did with the FS-1 was to build a sporty 50cc motorcycle as opposed to the step-thru type machine that 16-year-old license holders had been stuck with in the past. In virtually every town in Europe you could find kids tearing around the streets on their (usually tuned) Fizzies and throughout the years Yamaha introduced a variety of versions including the iconic FS-1E sportster and the chopper style Yankee (known as the FS-1SE in some markets).

Ultimately legislation killed off the reign FS-1 and its genre in most countries, restricting maximum speeds and power outputs for 50cc machines by the end of the Seventies, even though the bike continued to be sold in a more restricted form until the early Nineties.

The FS-1 continues to have a place in the hearts of middle-aged motorcyclists to this day. With interest in Seventies icons increasing all the time, pristine FS-1s command high prices, confirming the little bike's place as a bona fide classic and all-time Yamaha great.

Yamaha FS-1 1974 specifications[edit | edit source]

The FS-1, known as FS-1E in some markets, was a 50cc motorcycle which could reach a top speed of 47 mph.

  • Overall length mm: 1870
  • Overall width mm: 630
  • Overall height mm: 1010
  • Wheelbase mm: 1185
  • Ground clearance mm: 135
  • Dry Weight (without oil and fuel): 70
  • Fuel tank capacity: 7 Liters
  • Front tire: 2.25-17-4PR
  • Rear tire: 2.50-17-6PR
  • Front brake: drum brake
  • Rear brake: drum brake
  • Engine type: Air cooled 2-stroke reed valve
  • Cylinder arrangement: Single cylinder
  • Displacement cc: 49
  • Bore & stroke: 40x39.7
  • Compression ratio: 6.8:1
  • Maximum horse power: 4.75ps/9000rpm
  • Maximum torque: 0.4kg.m/8000rpm
  • Lubrication system: petrol/oil mix in the tank, 20:1 ratio
  • Transmission: 5 speed
  • Starting system type: Kick start
  • Dry Weight*72kg
  • Top Speed*47mph
  • Engine size*50cc