Question about Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer

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Ryobi 31cc 18'' 790r ez has no power

Replaced fuel lines (fuel filter), spark plug, air filter. new gasoil (using 32) but recommends 40, should not make too much difference.

Primer bulb has a small crack but still pumps, (not sure if this cause problem) Exhaust gasket resistor is broken (no screen) but took muffler off, when trying to start. same problem.
starts ok, but has zero power when throttle is pressed. Rebuilt carb with kit (walbro) Set the H, L to 1 1/2 turns from full closed position.

Trimmer was not used for a couple of seasons.

Any ideas what might be causing this.

R





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  • 183 Answers

You have done just about all you can do with this machine give up and buy a new one

Posted on Sep 03, 2010

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