Posts
160
Joined
8/16/2009
Location
Shenandoah, VA
US
2stroke153
12/23/2018 6:46pm
12/23/2018 6:46pm
Recently bought a 1990 YZ80 to semi-restore and hang on to for nostalgic reasons since I had one when I was a kid. The bike appeared to be in really good shape for the yr with much of it still in original stock form (even original front tire). Im the third owner. Guy i bought off of said been sitting for some time and was hard to start. I cleaned the rats nest out of the airbox and cleaned carb. Could tell compression was really low by kicking it over so I tore it down and bored it once over and installed a wiseco piston kit. Now that everything is back together it still has no compression. Literally has 65psi doing a compresion test. Will not even start! Reeds look fine. What could i be missing that could pull the compression down that low?
Paw Paw
The Shop
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