lawn mower outboard conversion

[kenfyoozed]

I have an old clinton outboard leg that i wnat to try to convert with a lawnmower style verticle shaft engine. It seems possible, espcially if you make it a direct drive. But could you use a clutch of some sort? The clutches i have found for a mini bike or go kart all use a chain or belt to direct the power. Does anyone know of a clutch that can be used inline from the engine shaft to the drive shaft?

[PowerTech]

do a serch in this site and you will find plenty of answers.this subject has been beat to death in here

[tom kane]

Lawnmower motors fitted to outboard legs have been available in many countries and have given lots of fun to many people,however, the motors were designed to run with a heavy mower blade attached.Without the extra weight many motors were difficult to start,even 4 stroke models especialy with a bit of age.The attached image shows an old penta outboard (which i have)with an inline shaft gear box giving neatural,forward and reverse.

[marshmat]

You would be best to add a flywheel with about the same moment of inertia as the mower blade you pulled it from. Outboards usually either have a clutch down in the lower gearbox or don't need one. You could easily scrounge up a centrifugal or manual clutch that could be adapted to suit.