Question about Craftsman Convertible 25cc. Gas Line Trimmer

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I left gas in my trimmer over the summer, now it doesnt start

The trimmer starts, but doesnt stay on

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The first thing you should do is dump the fuel out of it and your fuel jug and replace them with fresh gas and a good quality mixing oil,unleaded gas does have a shelf life and it sounds like yours has expired.A new spark plug would also be a good idea.

Posted on May 31, 2010

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Sounds like you will need to clean your carburetor.
Sometimes when you leave gas with oil in the carburetor it will form a "shellac" and plug your jets and float assembly.
Sometimes you can get by with priming it a few times, and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
If the mower is over a couple years old, then I also recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
When you clean your carburetor and remove the jet screws, You will first seat the jet screws and count the number of turns it takes to seat the jets from their original position.
That way when you go to put the jets back in, you know how many turns
they were in/out.
Please do not forget to rate me, Thanks
Good Luck, I hope this helped

Posted on May 31, 2010

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