Speedway Workshop

The Erskine JAP

This is the Erskine JAP as used by Soren Sjosten and which has undergone extensive restoration.

The frame is of Erskine design who also tuned the engine which is the 4B JAP motor.

Both the engine casing and head are of light alloy with a Wellworthy Cylinder and had a 2V head.

It also housed open hairpin valve springs and a Wal Phillips fuel injector.

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About the Speedway Workshop Archive
Phil Aynsley Photography
Phil Aynsley Photography
Thousands of quality photographs featuring Ducati, Moto Guzzi, MV Agusta and numerous other marques. An index to many of the amazing galleries on his site is available here:
Phil Aynsley's Motorcycle Photos