Hitting On One, Only? - Page 2 - Snowmobile World : Your #1 Snowmobile Forum

FishHog · 12-29-2005, 10:32 AM

make sure you clean your carbs before you run it again, just incase it wasn't water and you have a plugged jet.

icefish · 12-30-2005, 09:56 AM

Yep, makes sense, the carbs are cleaned and roughed in. New piston will be here early next week. While I wait how do I drain and clean the crankcase without pulling engine or whittling from the top down. I have no book on this doo just rebuild experience with lawn mowers and whatever I can get from the internet. :dazed: And, what are the specs/brands for crankcase oil?

FishHog · 12-30-2005, 11:19 AM

is it not a two stroke?

if so, no crankcase oil needed

MikeD · 12-30-2005, 11:32 AM

Quote:

While I wait how do I drain and clean the crankcase without pulling engine or whittling from the top down. I have no book on this doo just rebuild experience with lawn mowers and whatever I can get from the internet. :dazed: And, what are the specs/brands for crankcase oil?
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Check the condition of the cylinder walls and head. The cylinder may need a quick hone (not likely) but check for scoring. Did you order a new wrist pin and bearing and a top end gasket set as well? you should ...... As Fishy said, no crank case oil, just use 2 stroke oil to lube up the piston and wrist pin as you put everything back together. Pay attention to the way it comes apart, the snap ring etc. are positioned a certain way for a reason, and the arrow on the top of the piston faces the exhaust port (front) You'll need torque specs for the jugs and head ......

It's not too difficult a job but it's simple to screw up, you may want to get an experienced hand to help you ...

icefish · 12-31-2005, 11:50 AM

There you go, my 4 stroke Briggs background getting in the way. You are telling me all bearings are sealed (except the wrist pin bearing) and require no lube, including the chaincase? Yeah, Im good on parts. There is minor scoring on cylinder to be honed. I know - risk losing compression but will reassemble with rings quartered away from score, check compression, run-in and recheck compression often. Have an old tractor that had low compression (Continental) that improved on its own with revs. Many thanks to the "professors" Fishhog and MikeD. This is a great site. Has saved alot of ...

ZIPPARS02mxz800sp · 12-31-2005, 02:50 PM

what kind of sled do you have.?

icefish · 01-09-2006, 09:57 AM

Success!!!!!!!!!!! With the help of the good folks of this forum I fixed the burnt piston and runs great. Now we need snow here in the lower great lakes. One more question... (when it rained, it poured)... getting the old wrist pin clips off popped one into crankcase through the belt slot (had the pushrod covered to prevent this from happening, but you know, Murphy's Law). Fished around with different magnets but could not snag it. Should I be worried that it will be picked up into fan belt, crank, intake?

ZIPPARS02mxz800sp · 01-09-2006, 10:33 AM

oh oh not good.

icefish · 01-11-2006, 08:48 AM

WELL, DUH, ZIPPY!!!!!!!!!!(& it doesn't matter what sled I have). Put your head back in the snowbank, butt-out and let those who are helpful reply in this forum. Mike D and Fishhog may reply any time as they have actually provided the troubleshooting and solutions I needed. As I said, running great!