Stihl MS 250 Chain Saw Problems

[platefire]

Hammermech----I'm not familiar with Opti-2 Oil?

MJN-Glad to hear someone with the same saw has had the same problems. I'll include you start tricks in with my own. Agree,
I don't want another 2 cycle type saw without a primer bulb. I didn't realize it didn't have one until I got it home

RevB--Likeswise, I remembers in the 80's converting my push mowers from points to Solid State ignition. I never missed checking
point gaps and filing points one bit

 

[outdoorpowermike]

7 years is way past the life off the carb pump gasket. Sounds like engine is flooding out because carb gaskets are hard. This condition will flood engine in just a couple pulls. 1st thing to do is a compression test 98-130 psi is good. Next remove muffler a look at piston for scratches or bad piston. Replace with new carb if everything looks good.

 

[platefire]

7 years is way past the life off the carb pump gasket. Sounds like engine is flooding out because carb gaskets are hard. This condition will flood engine in just a couple pulls. 1st thing to do is a compression test 98-130 psi is good. Next remove muffler a look at piston for scratches or bad piston. Replace with new carb if everything looks good.

Haven't tried to fire it up since that last limb clearing. If it continues to be hard to crank, I'll have to do some tuning up. I've got a lot of trees in
my yard and every time a wind comes up, I have some measure of clean up to do.