026 refuses to idle

[Chainsaw Jim]

I'm assuming you know how to tune a carb. The low screw too far off will give it that symptom. I'm thinking a plugged impulse barb on the case would also cause it.

 

[Mark71gtx]

I tried the LA screw trick and it didn't work.

 

[Mark71gtx]

@Chainsaw Jim I set the L at one turn out as a baseline and attempted to get it to run by leaning and richening way more than that screw should ever be turned with little to no results.

 

[RI Chevy]

The way you are describing it now, definitely sounds like an adjustment issue. The 1 and 1 turn out for H and L is a guide, but you are using a different carb (Chinese knockoff).
You have to keep trying until you get it. Back the LA way out and keep trying.

 

[Chainsaw Jim]

drf255 likely hit the nail on the head. The AM carbs are a crap shoot and you probably ended up with a bad one.

 

[junkman]

drf255 likely hit the nail on the head. The AM carbs are a crap shoot and you probably ended up with a bad one.

I experienced this with my string trimmer ,got a couple that would not tune out and a couple that were great .

 

[dall]

i am like al and keep spare carbs around i just did a 026 took off a 194 and put on a new 194 ill rebuild the old one for a future project time just wasnt on my side then

 

[Mark71gtx]

Got pop off to 14 and it still is not right.​

 

[Mark71gtx]

Coil swap didn't solve the problem either.

 

[RI Chevy]

See if you can get a good working carb and try it to rule out other potential issues. See if the saw runs correctly with the good working carb. That would be the next logical trial I would think.

 

[Mark71gtx]

I put the Tillotson back on and now it runs like it should. Freaking Chinese garbage... the coil wire feels broken right where it screws into the coil. I bet that was the problem all along...

 

[RI Chevy]

Just replace the coil wire.
Glad to hear the carb took care of the issue.

 

[Mark71gtx]

Planning on it!

 

[RI Chevy]

Cool.

 

[psuiewalsh]

Would an inline spark tester have detected this? I try one prior to leak testing on saws with odd issues.

 

[Mark71gtx]

It was sparking, but it was apparently intermittent. I had pulled the plug and layed it on the cylinder to check for spark and it looked okay. It wasn't okay enough though...

 

[Adirondackstihl]

Hopefully you're on the right track with the wire

 

[Mark71gtx]

The saw if fixed, I was just stating that the saw had spark, but it was apparently intermittent.