Question about Craftsman Convertible 25cc. Gas Line Trimmer

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Craftsman line trimmer: update

Canbruce suggested a few things, which I tried (e.g., cleaning that spark plug). These helped the problem somewhat, but not significantly. Now it'll start and run for maybe 5-10 seconds, if that, and stall. Then it takes upwards of 12-15 attempts, if not more, to get another brief period of operation. Guessing it may be starved for fuel, but I have no idea what to do next. Thanks.

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  • John Barry Oct 02, 2009

    To the best of my knowledge, the fuel:oil ratio is right. As to your recommendations, I'd need extremely explicit instructions as to how to do that (I'm a novice when it comes to small 2-cycle engines), or I'd have to take it to a repair shop. Where might I find foolproof, explicit how-to directions to accomplish what you've suggested, please?

  • vince janis
    vince janis May 11, 2010

    Is your fuel to oil ratio correct, if the trimmer is old you may need to replace the fuel pump diaphram inside carb, if not old readjust fuel mixture needle valve.

  • Bruce Canfield
    Bruce Canfield May 11, 2010

    Hello, it's me again. Please refresh my memory, which is terrible, and I will see if I can add anything that will help get your trimmer running. Thanks.



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Posted on Jan 02, 2017

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SOURCE: Craftsman Wee trimmer will only run when tilted on its side.

its your flaot in your little carb

Posted on Mar 24, 2009

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SOURCE: Craftsman trimmer won't start

Let's start with the easy stuff first. Remove and clean the spark plug. Look into the tank and fish out the fuel filter. It should be stuck in the end of the fuel line in the tank. I usually use a short piece of coathanger with a small hook bent into the end of it. Clean or replace the fuel filter. The next thing is to clean the small screen at the exhaust. Remove any carbon build-up there that you can. Sure hope this helped and best wishes.

Posted on Aug 17, 2009

Thermo King
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SOURCE: trimmer will only run for a few secs then dies out

First, use the same oil and mix it the same from batch to batch, once you have made a batch (gallon or what ever, never add gas or oil to make more, use up the batch to the last drop, then make a new gallon). Be sure the air filter is clean, some are oil wet to catch more dirt, clean and spray it with a spray cooking oil. Next: Look for 3 adjustment screws on the carb. should be three total. 1 screw is for idle adjustment. the other 2 should be close to each other, one is low speed fuel/air mix and the other is high fuel/air mix. Adjust the low fuel/air mix screw until it will idle un-added with the throttle then adjust the idle on the throttle to get a good idle speed. Next adjust the High fuel/air mix until it gets the RPM's you want it to have. It should go from idle to high speed with out hesitation or cough. .

Posted on May 30, 2010

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SOURCE: 24cc craftsman 2 stoke

Low side adjustment on the carb needs to be opened up or the carb needs to be overhauled. To open up the low sie, find the carb jet adjustment screws. The screw closest to the cylinder is the low side. Turn the screw counter-clockwise 1/2 turn. You may need to romove tho plastic locks from the adjustment screws, or if it is fairly new, you may need to buy a special tool to use on these screws. The tool is available anywhere that sells Poulan parts. If adjusting the screws doesm't fix it, the carb will need to be overhauled or replaced. Check with . Replacement carbs are sometimes cheaper than an overhaul.
Good luck!

Posted on Aug 30, 2010

  • 11896 Answers

SOURCE: I have a 25cc Sears

How about the needle and seat? Have you adjusted the air/fuel ratio to 1 1/4 turn out? How good is your intake gasket?

Posted on Sep 23, 2010

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