Question about Craftsman 25cc Gas Line Trimmer

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Trimmer runs with choke on, but quits as soon as you turn choke off??

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Hi,
Its cause old fuel will crystallize when it is left in tank for a long time which ends up in plugging up ports and fuel lines and builts small screen in carburetor.Fuel lines will dissolve clogging carb and also the gas will evoporate leaving the oil behind clogging up carb.So you have to remove the carb and clean out,replaceing gaskets or fuel line.For that you may use carb cleaner and make sure to note where the fuel line goes.The fuel filter broke off of fuel line and letting debris get in carb plugging it up also the muffler is known to clog up a lot on these machines where they runs. However the compression should be 60 to 120 lbs any thing below 60 is junk. When adjusting the carb screws turn in all the way than turnout 1 1/4 turns turn in slow untail machine runs also you need to check for spark by removing plug and grounding aginst engine to chech spark.Fittin a new spark plug is suggested and if you are going to make these repairs use new fuel line and filter .

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Posted on Apr 28, 2010

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