A totally irresistible twin cylinder four stroke from OS! With excellent scale looks and a performance to match, and the sound is just glorious!
Producing 2 BHP this engine , with a ringed piston and ball raced cam- and crankshaft.
Truly superb in every respect.
A superb engine that will give years of trouble free life. It is after all an O.S.!
To download a PDF of the parts listing please click here
Spares and Accessories for your O.S. Engine
If you need any spares or accessories for your engine that are not listed on the site please contact us for a price and availability.