dolsen
This is the same exact engine as the popular O.S. .46 FX, but it has been updated by O.S. to include the Newer Style Remote Carb Needle Housing found on the newest line of O.S. engines. The new housing is now removable without removong the engine aluminum backplate. On the older .46 FX, the backplate would often crack with mild to moderate engine impact. Problem solved.

Best Regards Flyboy138