Yamaha FS1 — Wikipedia, the free encyclopedia

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Yamaha FS 50


FS1-E UK model [ ]

The FS1-E was the UK model. Machines in the UK from 1 August 1977 restricted to a maximum of 31mph [ 1 ]

Design [ edit ]

Originally the was built as a five-speed transmission motorcycle. It was originally called the Due to the regulations in Europe, the FS1-E was with a four-speed transmission.

The FS1-E has a 49cc single two-… air-cooled rotary engine with a four-speed The FS1-E was the FS1 with the suffix E, stood for England (differing the models sold in other as the FS1-E had more cycle in common with other Yamaha models). Yamaha various improvements such as a disc brake (FS1-E DX over the years, and later an model with a two-… oil and oil pump, with no need to mix two-… oil into the fuel

About 200,000 were for the UK market. An award winning film was produced in 2006 and is entitled ‘Fizzy Days’ the bikes and the era.

Pedals [ ]

The FS1-E had the ability to be powered by type pedals since was a legal requirement for registration as a in the United Kingdom and some European countries at the time.

The special pedal cranks both pedals to be rotated so that the pedals would motorcycle -style footrests in operation. To engage the pedals, the pedal crank could be forward and locked and a drive engaged allowing the user to A short chain connected the drive to the main engine-chain system.

Pedalling was hard for the rider: there was no freewheel and the gearing was very low. The could be started with drive engaged, causing the to rotate under engine when the bike was in gear. In the cam and shaft arrangement to engage the frequently seized (in normal a rider would very engage pedal-drive as it was less to push than to pedal).

The design of the pedals was done by Dullens, a former employee of Het in The Netherlands. The pedal system was for a Yamaha F5, which was basically the for the FS1-E.

Specification [ edit ]

Yamaha FS 50
Yamaha FS 50

Two-… single cylinder disc valve induction, gears, running on a 20:1 mix of and two-… oil.

Frame: pressed steel backbone type.

Electrics: ignition with integral 6V AC for the running lights (including and low beam on a switch). The indicators, lights, neutral light and ran separately on 6v DC from a three-cell acid battery that a trickle charge from the On most models the three ignition switch (on a key providing run and lights) was mounted on the L/H side however the switch was moved to the position between the handlebars on the DX (front disc brake model) and later FS1-E

The right hand side contains a basic toolkit in a case, pliers, 3 spanners, ended screwdriver, plug

The competition [ edit ]

The second popular moped of this era from Honda. the SS50. had a similar speed, and thanks to 4 … design were more economical and potentially lived though without the same acceleration or style. All the same legislative fate in 1977.

For a short time this date some manufacturers (particularly Italian) in machines that could be derestricted without the use of any additional or any machining.

Yamaha FS 50
Yamaha FS 50
Yamaha FS 50
Yamaha FS 50
Yamaha FS 50
Yamaha FS 50
Yamaha FS 50
Yamaha FS 50
Yamaha FS 50

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