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What ,the seals ? They are an odd ball size .I had the generic but I don't know what I did with the info . Kind of wierd thing,not the normal double lipped seal used on most chainsaws .They are easy enough to change .You can pry them out with a couple of little screwdrivers or a pair of ice picks .

Things happen,'taint no big deal .

On that here's what I found on several including one of my own .The 020 and 200 T both use roller bearings that have a fiber insert type of thrust washer .After a period of time they develop side slop which heats the seal and they fail .It's not immediate but over a stretch of time .May start...

Here's another thing about an 020/200t .More times than not unless the piston is cooked the piston face and the muffler will all carboned up .The reason being these little saws have enormous transfer ports for their size and can really push the fuel though .If anything would save them from a...

Old John must have opened up the high speed jet then if the pistons survive .

If you let the muffler fall off of a 200T you'll burn the plastic shrouding which is under the muffler .Geeze those things have holes through that shrouding so you can reach the muffler screws .It's nonsense to let one rattle apart like that . Oh it will probabley run to beat hell for a period...

The oil doesn't fail just the mixture ratio .The muffler acts like a pressure regulating device .Once the internal muffler pressure equals the incoming transfer pressure the fuel /air mix ceases to exit the cylinder . Now if you don't get a "clean " transfer you have a partial cylinder with...

Thread locker of a sorts works .However a threaded fastener taken to the yield point will not unscrew unless a certain amount of expansion is present in the material . Not to try and sound like a smart ass but it's part of a job I do every day is annalizing suspected possible fastener failures...

I looked them up and they aren't that costly unless you get the precission type .Mc Master -Carr .You'd want what ever size the bolts,probabley 6 MM by whatever the width of the torx head Stihl bolt is .

Originally if I'm not mistaken those Stihls should have had belleville type washers on the muffler bolts . A belleville is a type of washer that keeps a steady tension on the bolts regardless of it's expansion due to heat .Fact they are used on many more modern aluminum auto engines as well as...