Speedway Workshop


(Owned by Gene Kibby and built by Jim Coppedge.)

A Maely framed Ajay 500.
The engine is a 1955 long stroke AJS, and has been set up for speedway.

Oil is reccirculated and changed every 10 laps. This is just a little less than a quart, and seems to work out fine.
Flywheels have been lightened, and the compression has been raised to 14:1 by machining .250 off the base of the cylinder and the use of a Harly Davidson piston.


The head has some extensive port and valve modifications, and is fed by a 36mm Bing carburator.

Cam shafts have been custom made by Jonhson Cams, and I have been informed that this set up has given the engine some higher revs and greater mid range torque.

Fire, comes by way of a Pal magneto.

About the Speedway Workshop Archive
City Coast Motorcycles
City Coast Motorcycles

Triumph, BMW, & Kawasaki Sales Spares & Repairs.
Established for over 40 years and run by expert motorcyclists.
Fully authorised workshop.