Hello all, I'm not sure where to put this post so here goes, it can be applied to any engine.....

I built a spare motor for my Cen Genesis that has basically the same components as original (NX76). I would like to see if it starts and break it in, however it is just he engine and components such as fuel tank, carb, air cleaner, pipe, pull-start, chassis, etc. Everything but there is no clutch or flywheel or anything, just the crankshaft sticking out [through the crank bearing] . My question is can I run it like this, without any weight or tranny or anything connected to the crank? I know I've read you need to have a prop installed to break in an airplane engine for weight and was wondering if the same rule applies to a land-based engine. I don't want to over-rev it or blow it up before it's in a vehicle

Thanks a bunch I appreciate your time,

-Joseph