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Joined
6/5/2018
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Hebron, IN
US
1988 yz80 just got a new top end and gaskets, was bored up to a 90cc by millennium technologies, haven't broken it in yet, but how much psi should it be after broken in? It doesn't seem like it will gain much compression after breaking it in, I have a brand new ring and piston and bored/honed jug, right now before starting it up to break it in it feels low, really low compared to my 216cc ored blaster (broken in). Any suggestions or does an 80 naturally have pretty low compression compared to a doggish 200cc 2 stroke?
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