Recommended engines, but would require some jackshaft or gear reduction, custom mounts.I'll have to look for some online service manuals for some pre-purchase data. The sachs engines seem to be pretty plentiful on ebay in Europe. If anyone has any other recommendations please let me know.
This is what we run here in Nor Cal and it has to be one of the most durable engines we've played with. We use the 5.8 hp motors and they heve plenty of HP for the streets and on the trails. The engine is a little wide but nothing a wider crank hub couldn't fix.Thanks for those links technocyclist! I am getting excited about an alternative powersource. That little boxer twin is cool, but pretty wide. And those spark plugs! I saw a video on youtube that inspired me to look up Motomorini. They have quite a selection of nifty 50cc engines.
Any further suggestions are welcome