Question about Ryobi 18-inch Electric Chainsaw Chain Saws
Remove the air cleaner and watch the throttle arm on the carburetor while operating the throttle trigger--suspect that the trigger assembly has acquired sawdust and dirt sufficient to limit proper travel of the trigger mechanism. Careful notes as you dis-assemble the trigger will help get it back together properly. There is little except proper maintenance to prevent debris accumulation in the trigger mechanism. Note: air leakage behind the carburetor can also cause high idle speeds--make sure the carburetor is fastened securely and that there are no flaws in the gaskets and heat insulator located behind the carburetor. Hope this helps!
Posted on Jul 13, 2010
PCN 4545 Ryobi won't idle.. adjusting the Low/Hi and the Throttle screws did not make any difference.
I trawled the web for answers but all the checks mentioned did not apply to me.
Inoticed that the throttle screw was unable to do its job- This was because the wire (looks like bicycle brake wire) that goes from the throttle trigger on the handle to the carburettor assy was to short about 2-3mm.. over time..(maybe because the chassis has expanded over time or the handle has moved away from the main chassis body by about 2-3mm short over time.
The throttle trigger cable being about 3mm short over time prevented the throttle from closing in far enough to make the chainsaw idle/or to engage(touch) the throttle screw to make the adjustment viable.
I opened the trigger handle assy (3 screws).
I took about 4mm of the outer black plastic covering off the trigger wire cable, exposing more of the inner wire. this allowed more of the inner wire to get to the throttle end (add slack).
I reassembled and can now adjust the throttle correctly using the screw to make the Chainsaw idle.
Posted on Oct 01, 2015
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Posted on Jan 02, 2017
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