Treat's Puch 70cc Kit on a za50 install issues

Has anybody else had install issues with Treatland's DMP 70cc kit? It looks like I will have to trim the piston skirt to keep it from crashing on the flywheel at BDC. Has anybody else had to do this?

Re: Treat's Puch 70cc Kit on a za50 install issues

When looking into the ZA50 case, there is a little tab that sticks out on the bottom of the case itself that is directly in front of the crankshaft. Grind the tab down and the piston will not bottom out on BDC. The tab stands about 3mm high by 5mm wide.

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