MS180 Poor idle

[anlrolfe]

I've got a Stihl 180 rebuild with replacement longblock and adjustable carb that ran reliable until the last outing with our Scout Troop. Low idle wouldn't cooperate. I replaced fuel line thinking it's age could have cracking. No change. Intake boot is neadly new. I replaced carb with another H/L that I thought matched but unfortunately impulse line hole was offset and didn't line up. Plan on going back to fixed carb.

 

[Oletrapper]

I've got a Stihl 180 rebuild with replacement longblock and adjustable carb that ran reliable until the last outing with our Scout Troop. Low idle wouldn't cooperate. I replaced fuel line thinking it's age could have cracking. No change. Intake boot is neadly new. I replaced carb with another H/L that I thought matched but unfortunately impulse line hole was offset and didn't line up. Plan on going back to fixed carb.

Why not just get another new carb? jmho OT

 

[anlrolfe]

Ordered... things are cheep enough.
That's part of the problem I suspect.
Also gave me a reason to grab an old Echo 305 off the shelf. Only thing bad about it is front chain adjuster. I've converted all my Stihl to side adjust.

 

[anlrolfe]

I've got spare carbs on the way.
I put the original Stihl fixed carb back on and it's running just fine for now. I'm reading that some of the Chinese replacement H/L adjustable carbs don't have an accelerator pump???