Bravo crankshaft

Chaston Scarborough /

I've been working on my 81 bravo and remember reading a post about shaving parts of my crankshaft to get more speed. I spent the last 30 min looking for this post and can't find it. Anybody know about this? would it be possible/ to use a dremel tool to do said shaving? Thanks

Re: Bravo crankshaft

I can't find it either, but here are the pics i saved from it.

I have a similiar diagram in the install/case prep instructions for my 75cc kit, but they only say to shave 10mm where this says to shave 15, so you may want to be conservative on this.

Re: Bravo crankshaft

and the intake manifold port:

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