Question about Craftsman 25cc Gas Line Trimmer

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Trimmer will not stay running without the choke on. It will still run but not well and it will not let you throttle up. Is it an adjustment on the carb? The other problem is I dont have the owners manual to identify the two adjustment screws on the top of the motor.

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  • 54 Answers

You have fuel flow problem obviously. One of the screws is idle adjustment, easily identified by SLOWLY turning it in or out for change in rpm, the other is your high speed jet, turning it in or out while trigger is at full throttle to get max rpm and instant response from idle. Something else to check might be for an air leak in the fuel line, loose connection etc. Check the primer bulb area very well including the bulb itself. Hope this helps.

Posted on Apr 26, 2010

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Posted on Jan 02, 2017

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Good Luck!

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