Its a brand new Fan cooled Yamaha engine rated at 26 horsepower with a brand new 2.2 ratio planetary gearbox rated up to 90 horsepower , this engine set up like this was made and sold for ultralight aircraft use , It would work great on a light ultralight aircraft , trike , powered paraglider or airboat . The gearbox has a sprag clutch in it so they run really smooth , The engine is also oil injected it you don\'t want to mix your fuel , What you see in the picture is what you get , The Exhaust can be mounted vertical or horizontal , ,The engine as sold and pictured is ready to run and put to use , just add fuel and oil as needed , thanks for looking .

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