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Can I reverse the direction of the output rotor shaft of a two stroke engine ? If yes how ? Answered


Like others: reverse the starting direction and adjust the timing - that's the hard bit because you'll have to rearrange the Magneto-devices unless the timing is pretty-much TDC.


Asteve says a lot of 2 strokes will run in either direction if started that way.

Famously the Messerschmidt bubble car had an electrical reverse that started the engine in the other direction.

Many will, especially if they are timed so the spark is very close to TDC.

How is it started now ?