Home Restoration Restoration topics Yamaha MF1 restoration, part 4#
Yamaha MF1 restoration, part 4#

Yamaha MF1 final assembly and testing.

As nearly all components are there, the old moped finally can be assembled.

As the construction is very different from later Yamaha's some care has to be used. But you have seen that I made a quite extensive logbook when I took the bike to pieces.. That will help of course.

 

1-carbparts

I start by cleaning again all the carburetor parts and putting them together.

 

2-carb-2gaskets

Unfortunately it turns out that the float bowl is leaking. It is fitted only with two screws and not straight anymore. Rubbing it down on a glass plate and taking 2 gaskets instead of one solves the problem.

 

3-fuelcock

The fuelcock was repaired earlier as you have read and does the job after some testing with a little fuel.

 

4-muffler

The muffler comes from a friend in the USA. It was a good one but after re-chroming it is better than new! The exhaust pipe was carefully made and copied from the old, very rusty one.

 

5-swivel

Now the engine can be fitted to the frame.

 

6-swivel

At the rear the bottom bolt is inserted first. Now the neutral switch wire has to be fastened and the wiring to the starter generator.

 

7-mounting

As the engine hinges on the lower bolt, it can be easly moved up now and the other bolts can be fitted.

 

8-carb

The carburetor has to be attached to the cables and can now be carefully moved into place.

 

9-carbhole

Here it is, nice and dry. The airfilter comes later On the left you see the white plastic pulling knob for the choke.

 

10-lh

The old MF1 is already looking more “grown-up”.

 

11-rb

At the rear everything is ready for the fitting of the lenses, that is one of the last jobs.

 

12-headlamp

Connecting all the wires in the headlamp is a normal Yamaha procedure, the colours are the same as today.

 

13-headlamp

The headlamp lens can now be attached as well. I added earth/ground wires everywhere as the machine is covered quite well in paint now.

 

14-lhengine

The heel/toe gearchange pedal has little room. The strange shaped kick-starter lever just moves clear of it. It is designed for small Japanese ledies feet, not for my size 8"! See the choke knob and left of it the adjusting screw on the carburettor.

 

15-labels

These labels still have to be cleaned and touched-up, a job to be done later.

 

16-chaincase

The chain-case fits surprisingly well. I used small rubber rings and painted washers to avoid scratches.

 

17-rhengine

The switch above the gear-change pedal has a small black rubber cover. That is the only part that is not very good anymore. The joint rubber between the exhaust pipe and the muffler comes from a modern scooter.

 

18-rhenginecu

The clutch cable has a funny run, it goes downward with a rather sharp bend.

 

19-handlebar

The handle-bar lay-out is simple, but everything is in working order. The speedometer was repaired by a good friend, the result is very nice. The fuel tank cap is not original. The old plastic one was very much worn, a friend mad a nice aluminium replica.

 

20-lhlegshieldbracket

The handmade leg-shield bracket can now be fitted too.

Next time we make it ready for the road. The legshields have to be fitted and some remaining small parts.
 

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