What parts do in need for my chainsaw?

I have a Stihl ms290 with very little compresson what parts do i need to make it run again?

Comments

5 Responses to “What parts do in need for my chainsaw?”

Boomer says:

August 10, 2009 at 4:57 am

a new saw!
but if you want to toy around with it
1. the cylinder will have to be honed out
2. new piston rings
3. new head gasket
4. valves will have to be removed cleaned and at the very least lapped
if the cylinder is badly scored junk it
good luck if you try it :0)
questionmark says:

August 10, 2009 at 4:57 am

I would check out the piston and the head and the head gasket
BobS says:

August 10, 2009 at 4:57 am

I have the same saw, if someone ran it without mixing oil with the gas, the piston could be scored and its going to be a major repair. I would take it to a dealer and ask them what it would cost. Good luck.—
Woody says:

August 10, 2009 at 4:57 am

Before you go to a lot of expense with piston, rings, etc., check the compression release valve first, if it has one. They are notorious for failing and if it has failed or carboned up permitting a leak, you will lack compression. You can either replace it to check it (they are not expensive) or just take it out and replace it with a SHORT bolt (short, so it doesn’t hit the top of the piston!). Then check for compression once the bolt is in place.

If that’s not the case, a good saw shop would be a wise bet to check it for you. They can check it for next to nothing and advise you what is wrong before you spend money needlessly.

Hope that helps.
yellostrat says:

August 10, 2009 at 4:57 am

it needs a new piston and cylinder……

possibly a 300 dollar repair…

but a new saw