Stihl Chainsaw Stalling

[MidMichigan Rick]

I have a Stihl MS180C. Saw was running back in September. I tried to cut some wood over the weekend. The saw starts and idles, but when you try to give it any type of gas it stalls out. I cleaned the air filter. I readjusted the carburetor per the manual's instructions, not any better.

Any ideas?

Thank You!

 

[snobdds]

Make sure your fuel line from the tank to the carb is not cracked and brittle in any way. If it is it will not pull fuel into your carb.

 

[D'Animal]

What snobdds said plus the fact your carburetor diaphragms probably dried out a bit adn got stiff on you. The new fuel running across them should soften them up a bit and it may snap out of it. If not, install new carburetor diaphragms.

 

[MidMichigan Rick]

Wow....been sometime since I was last here. I got around to checking what was mentioned and found the fuel line was split inside the tank. Replaced the line and spark plug and now nothing. I checked spark plug for spark, which it did have, but the plug looks dry not getting any gas now. I also cleaned the breather tube.

 

[D'Animal]

Sounds like the inlet needle may be stuck. Remove the airfilter and stick a rag tightly into the throat of the airfilter base. You are creating a Hard Choke inside the carburetor. Pull the starter rope adn once it "Pops" or tries to start, remove the rag. You can also use your thumb but it is a bit hard on the MS 180.

 

[MidMichigan Rick]

Thanks. Tried what you said and got it to start up. The saw will run for about 3 seconds and then shut down. Has the high RPM running sound...like normal sound, just before running out of gas.

 

['74 UA FJ]

Got oil in your gas?

 

[MidMichigan Rick]

Yep....fresh oil and gas.

 

[Dilys95]

Make sure your fuel line from the tank to the carb is not cracked and brittle in any way.

 

[MidMichigan Rick]

I replaced the fuel line Wednesday...don't think I damaged the new one putting it back in, I'll check. Not the easiest thing to get back in.

Just wanted to mention that when I drained the fuel tank to work on the saw, there was a white material, never checked what it was almost looked like a waxy material, covering the bottom of the tank and the fuel filter screen.

I cleaned the fuel screen, don't know if any could have gotten by it and made it into the carb?