Stihl string trimmer troubleshooting

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Stihl string trimmer troubleshooting

This trimmer has less than 1 hour on it. Just recently it's gotten a little tougher to start and does not run smoothly. It sounds as if it's breaking up, or is miss-firing. It just doesn't have that clean crisp sound. I've gone through the basics and made up a new batch of fuel with premium gas and Stihl mix. I just got a new spark plug but have not yet tried. Can anyone think of anything else specific to this trimmer? I can't see that it should need a carb tune with 30 minutes or so of total run-time. Hey all, I just wanted to report back with a resolution of the problem for those of you intrested in a solution. As is the case with most issues, this was caused by user or operator error. Apparently, I let the sting get too short which caused the trimmer to over-rev to the point it hit the built in rev-limiter.

Can anyone think of anything else specific to this trimmer? Thanks for posting back with the resolution. I have been assuming that the engine would just not rev higher.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Let it set for a while and cool down, then restarts fine but will only run for another 20 to 30 minutes.

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Stihl string trimmer troubleshooting

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Search forums. Welcome Newcomers Only registered users may post in our forums. After idling briefly, pull full throttle. Let it sit for several minutes to help loosen and dissolve varnish. Should be a nice crispy brite-blue spark. This will provide a very rich mixture at both idle and full throttle, and the engine may not idle well or at all. Houzz Pro: One simple solution for contractors and design pros. It's incorporated into the ignition module, designed to save the engine. To fix that, the engine had to be removed entirely from the case. Hell, just pop on a new engine then Just recently it's gotten a little tougher to start and does not run smoothly. I have been assuming that the engine would just not rev higher. Video Inside. Outdoor Sale.

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Share Post on Facebook. After idling briefly, pull full throttle. The engine should speed up and smooth out for a while as you do this, at one point drastically cleaning up its sound. Forum Posts. View Profile. Now get a spark OK but still will not start. I think the hard starting was as you indicated masiman a misperception. Please register and join our community! Finally, use the idle stop screw to fine tune the idle to where you like it. Idle stop and Lo mixture have a mutual affect. It idles great would idle all day if I let it. If that's all it takes, then good.