Missourian
Diamond Member
Or is it just me?
Invariably something goes wrong half way thru the repair that throws my troubleshooting into a tail spin.
I had this Poulan weed trimmer idling fine and was trying to get the high idle set when I noticed a crack in the intake boot. So I figure I'll replace it real quick in case it's screwing up the air/fuel mixture.
Easy-Pease...it's done.
All of a sudden it won't start again AND the primer bulb isn't pulling fuel through the carb.
I've already replaced the fuel filter...that ain't the problem. Maybe I opened a crack in a brittle fuel line. Nope...new fuel lines...no joy? Primer bulb leak? New one installed...no change.
Tried gently blowing through the fuel intake tube...seems completely blocked.
Long story short (too late) after replacing the diaphragm (the old one looked ok but I had the kit already and had to remove it to see why the needle valve wasn't opening)...the primer bulb started pulling fuel again and I got it idling (again)...then finally got the high side set and it's running again.
But...that diaphragm was working yesterday. I had it running and could keep it running at significant throttle, but had to feather it to keep it from dying.
Maybe this is just me...but once I rule out something as not being the problem...it sure would be nice if it stayed ruled out. It really gets frustrating when it doesn't.

Invariably something goes wrong half way thru the repair that throws my troubleshooting into a tail spin.
I had this Poulan weed trimmer idling fine and was trying to get the high idle set when I noticed a crack in the intake boot. So I figure I'll replace it real quick in case it's screwing up the air/fuel mixture.
Easy-Pease...it's done.
All of a sudden it won't start again AND the primer bulb isn't pulling fuel through the carb.
I've already replaced the fuel filter...that ain't the problem. Maybe I opened a crack in a brittle fuel line. Nope...new fuel lines...no joy? Primer bulb leak? New one installed...no change.
Tried gently blowing through the fuel intake tube...seems completely blocked.
Long story short (too late) after replacing the diaphragm (the old one looked ok but I had the kit already and had to remove it to see why the needle valve wasn't opening)...the primer bulb started pulling fuel again and I got it idling (again)...then finally got the high side set and it's running again.
But...that diaphragm was working yesterday. I had it running and could keep it running at significant throttle, but had to feather it to keep it from dying.
Maybe this is just me...but once I rule out something as not being the problem...it sure would be nice if it stayed ruled out. It really gets frustrating when it doesn't.
