nbsp; These shims go between the head button and the top of the cylinder sleeve and can be used to adjust and fine tune the compression (deck height) of the engine. In general ...
This is a replacement O.S. Engines Backplate Cover ...
Gasket, and is intended for use with the O.S. 91HZ F3C and 91HZ-PS 3D Helicopter Engines, as well as the O.S. FS200S-P, FS200S, and FS110-a four stroke engines. This product was added ...