Question about Poulan WeedEater Hedge Trimmer 25cc Engine
It keeps stalling after only a few minutes (5-10) of run time. Then it won't start again unless the engine is cold. Once engine is cold, it starts briefly and then stalls again
Suspect Ignition Coil is failing under heat.
To test this, take the unit outdoors and have a fire extinguisher handy. Start and allow unit to run until it shuts down. Then remove spark plug and test for spark by grounding the outer shell of the plug on the engine's metal surface.
Keep your face away from the spark plug hole as you pull the rope to test for spark. Expelled fuel or vapors can ignite via the removed spark plug or any subsequent arc.
If no spark when hot, and good spark when cold, replace ignition coil.
Find your EXACT model number on your unit, then go HERE to lookup the part number of the coil. Call your local reputable repair shop and ask if they have it in stock or can order for you.
Hope this helps.
Posted on Oct 04, 2009
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Posted on Jan 02, 2017
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I have had this same problem
before, and it was solved when my live in, admitted dropping a rather large
diameter lipstick just after removing the gas cap. She couldn't find the
dropped stick, and assumed it had rolled out of sight, because what are the odds
of it just hitting the open hole, let alone going on in? lol
If your fill spout does not have an obstruction, I would suggest you try not pushing the gas nozzle all the way down into the filler neck? You can hang the end of the nozzle from the last 2 or 3 wire rings around the nozzles exterior, with out it falling, but don't leave it unattended.
If this does not help, then I'm at a loss, except for the vent line which allows the gas tank to breath, and it is located about 8" down the filler neck, where it tees off to travel a little ways into a reclamation canister. But if it were clogged, I don't think your engine wouldn't run very long, at least not very smoothly. Another symptom would be it slowing down, and stalling or missing, until it would finally quit after a few miles because the vacuum or vapor lock. After a few minutes, it could then start back up and seem to run fine (for a little while) but after a few miles it would repeat the cycle, over and over.
These symptoms are also caused by a clogged fuel filter located just under the inlet fitting, that is screwed into the carburator body. Even though you may be able to hold the filter or screen up in the sun light and see light trough it, it can still be clogged. They don't cost more than $5.00 so I would just replace it, from the start, and eliminate that possibility. This filter has proven the culprit, and more than 2 occasions. Hope this helps.
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