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.