Rebuilding a Stihl MS290

[Stumpys Customs]

Finally got an opportunity to give the saw a bit of a workout today. Ran a more oiled tank through just goosing the throttle as a break in, then another tank of normal 50:1 and letting her rip. I see what folks say about it being a bit underpowered. Though it has similar displacement to my 357xp, it can't hold a candle to it for speed. Easy to bog it down. Will have to keep a sharp chain and just let the weight do the cutting. I intend to use it as a backup saw anyway but I thought it would be a little closer to the Husqv, performance wise.

I noticed one annoyance with it though. It win't idle very long. The rpm will slowly fall off till it dies. Any thoughts?

Try adj the L screw in or out a little bit to see if it makes any difference.

 

[sefh3]

If adjusting the L doesn't work, rebuild the carb. Did you replace your fuel line?

 

[babzog]

If adjusting the L doesn't work, rebuild the carb. Did you replace your fuel line?

No, fuel line is what came with the saw. New filter though. What is involved in rebuilding the carb?