I know a lot of guys here dabble with M20s.
A mate just aquired a BSA M20 motor from a Clifford Rotovator.
Its quite interesting: alloy "head" with the fins pointing the wrong way, and what we think is provision for a hand crank.
I hadnt come across one before.
He has an M20 so is pleased to get this.
Anyone know of any problems when using one of these in a bike?
Cheers,
Iain