Speedway Workshop

 
The "Dog-Eared (Single Port)

The 1931 JAP "Dog Eared" Single Port (Twin Plug) Engine


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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