M119 – JAWA GM SPEEDWAY (NO RESERVE!)

The first type of GM engine was the SP. The engine is made from alloy and aircooled with a SOHC 4V system. All bearings in the SP engines are needle bearings with one exception, the camshaft bearing on the chain side is a ball bearing that takes the radial forces from the camshaft and camchain. In the SP there is steel conrod and a Corworth slipper piston. The 2 inlet valves are 33.5mm and the exhaust valves 29 mm, the valve stems being chromium hardened. The SP is with a total loss oiling system and a conventional oil pump. Bore x stroke are 86 x 86 mm, or 84 x 89 mm for the longstroke. Ignition by electronic box and contact breaker. Power 58 bhp @ 8500 rpm. Engine weight 26 Kg. This motorcycle has been on static display and will need a full service prior to operation. Selling on a Bill of Sale with NO RESERVE!