90safaria motor - Snowmobile Forum: Your #1 Snowmobile Forum

chevyman · 12-24-2005, 06:21 PM

took head off engine and am missing enough piston that I only have one ring groove should I consider a jug and piston or do I need to go to the bottom also

**smallengineguy** · 12-25-2005, 06:51 AM

Replace the piston/rings. If the cylinder is all scored up, replace it also (used are cheap for theat sled now) or have it bored. You want to tear it down all the way, you NEED to see where the pieces went....All you need is to do a complete rebuild then have it suck up a piece that was stuck in the bottom of the crankcase and crap the whole engine again.....

chevyman · 12-25-2005, 12:33 PM

I tore the bottom apart and all looks fine once cleaned up this sled seem to use a lot more oil than my other sleds can I disconnect the injector and premix the gas

**smallengineguy** · 12-25-2005, 08:04 PM

You can if you'd like.,