Question about Stihl 36, 40, 44 Edger Trimmer 35mm Piston Ring 4130-034-3000
Motor runs but will not rev.
A very common problem I see with trimmers is the spark arrestor screen plugs up blocking the exhaust from exiting the engine causing the engine to not wind out like it should. If that doesn't solve the problem then check the diaphragm in the carburetor. Those units are obsolete and very difficult to find parts for so I wouldn't spend a lot of time or money on it to fix it
Posted on Jan 16, 2013
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Posted on Jan 02, 2017
Two things spring to mind, fuel tank breather, to rule this out slacken off the filler cap when the machine starts to die, if it picks up again change the tank breather, or the ignition coil is breaking down when hot, this would require a replacment unit.
Posted on Dec 16, 2012
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