When it comes to petrol engines, the GT33 stands out from the opposition. It has the muscle, runs more quietly than the competition while exceeding their output, and starts easily with electronic ignition that accepts many different battery types. O.S. have produced a petrol powerhouse for the serious pilot!
The rear mounted Walbro carburetor is designed for the GT22 with a choke rod guide integrated into the crankcase for easy setup.
Comes complete with IG-02 ignition system and Pitts Style Silencer, for super, quiet reliability.
Drops into the same bolt pattern as the 65AX glow so makes petrol conversions a breeze!
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.