Yamaha AS1

The little 125 cc twin hit the market and with all the raceparts which could be ordered hundreds of AS1 based racers were used in Europe in the early 1970's.

 

My AS1-021900 is 100 % original, with only 6000 km on the speedometer. Some parts are maybe a little faded but I keep it as it is. The engine is very noisy with the cast iron cylinders but it propels the small bike easily to over 110 km/h!

 

The handlebar layout is very neat, with the "Norton Dominator" style flat handlebar the seat position is far better than any modern motorcycle!

 

Yamaha AS1 handlebar
Yamaha AS1 handlebar

 

As this AS1 is original there are of course a few scratches on the paintwork but "original" gives a good idea if you want to restore one of these fantastic little bikes. The battery is also an original Yamaha battery, do not ask me how I found it!

 

Yamaha AS1 battery
Yamaha AS1 battery

 

The rear of the AS1 should look like this. The chain is covered with a small chrome chainguard.

 

Yamaha AS1 rear wheel drive
Yamaha AS1 rear wheel drive

 

Behind the engine you see the nice vertical chrome airfiltershrouds connected to the carburetors with oddly shaped rubber manifolds.

 

Yamaha AS1 l.h. engine
Yamaha AS1 l.h. engine

 

The close-up is for those who want to see all the details!

 

Yamaha AS1 carburetors
Yamaha AS1 carburetors

 

My AS1 also has an original luggage carrier, like the YL1

 

Yamaha AS1 rear carrier
Yamaha AS1 rear carrier

 

The oiltank swivels out for filling. You have to unscrew the plastic knob, the tank hinges and is kept from falling away by a cotton strap.

 

Yamaha AS1 l.h. engine
Yamaha AS1 l.h. engine

 

The front brake is quite okay. It is not a racer of course, but properly adjusted it stops the machine quite well.

 

Yamaha AS1 front brake
Yamaha AS1 front brake

 

 

 

 

 

 

 

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