Trying to make engine run backwards
 

How is the easiest way to make a two cycle run the oppositeway, with out having to use a lot of gears ?

Trying to make engine run backwards
 

If you want to use the engine as in a pusher configuration you don't need to do this, just buy a pusher prop. Else you need to buy a brand that the manufacture has an available reverse crank. Or an engine with a bolt on front housing that you can turn 90 degrees to chang the rotary valve timing.

Trying to make engine run backwards
 

Sport Pilot thank you for the info on the engines