panolo
Seldom right...Always opinionated!
I need to take of pic of my saw, but its to cold. so. Anyways, most of my saws are somebodies elses junk. I have a 55 husky I bought new and everything else came from the junk pile. I think the most expensive saw I have, besides the new 55, is my 272xp. I have $75 bucks in it and that is including a new chain. I am graduating from saws to 4wheelers. My cousin called me up and asked if I could rebuild a grizzly 600. I told him I had never worked on any 4wheelers, what is wrong with it. Locked down. well bring it up, the worse I can do is tear it apart and not be able to put it back together. Spent half a day trying to get the spark plug out only to find out the sparkplug is 8mm instead of 3/4, 5/8, or 13/16 which is what every other plug I have ever seen is. Sprayed it full of pbnut blaster and it freed up in about 30min. Sprayed ether in it and it fired up. I wanted to do a compression test, but my tester wont screw into the plug hole. compression feels pretty good so worth working on. Pitcock on gas tank leaking as fast as I can pour gas in it. I took the pitcock apart and cleaned it up, now just waiting on a warmer day to put gas it it and see if it still leaks. He said the carb is also messed up so I might have to rebuild or replace. I used to have really good luck rebuilding hollys and quadjets, maybe the grizzly carb wont be to bad.
I've fixed hundred of grizz 600's over the years. Oil cooled so if the piston fried it was more than likely from lack of lube or the crankcase was filled with gas. Compression test does you nothing on those. They need to be leaked down. Usually the valves and cams made it through a dead oil burn down. If the oil is full of gas dump it and get some good in it. Sometimes you get lucky and it didn't wash the rings. The starter clutches on them suck. They clank hard. Usually the one way went out before anything else. A must on the carb is OEM. If the needle is rough replace it. They don't take cleaning. Replace the little o-rings in side. Yamaha jets are easy to clean. If you go chinese or aftermarket on the carb parts you'll pay dearly. Guys that ran full synthetic usually had problems. We ran 20-50 in the summer and 10-40 in the winter. One of the few wheelers that had heavy summer oil.