Question about Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer
My Ryobi PLT-3043YE strimmer will not idle and needs 1/2 throttle to keep running.
This was not the original problem - yesterday it would not reach full speed after 10 minutes use, but idled OK, and eventually would only reach 1/3 of normal revs on full throttle. I pulled the carb and removed the bottom cover - it was immaculate inside and the float & diaphragm seemed fine so I refitted it. Then I checked the spark arrester, which was completely clogged with carbon - so I cleaned and reassembled it. Now it runs fine at full throttle but stalls on less than half throttle.
I suspect that the idle jet/passages got a bit of dirt in when I took the bottom off the carb. I've twice tried blowing it out - no effect. Looking for ideas!
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Posted on Jan 02, 2017
The plug that I have in my 720r is a Champion RDJ7Y. Can I suggest that you pull the old plug out and look to see which one you have? Also when you buy the new replacement it should already be gapped for what you need.
Posted on Jul 28, 2009
SOURCE: Have the RLT30HT strimmer. Hard
Something is causing a lean mixture (less fuel) at the carb. Usually a furl flow problem - do the easy things first - check fuel tank foe any leaks (cracks in plastic) fuel lines for being dark yellow or brown colored - they will begin splitting apart at this point. Then go after the fuel primer bulb - if darkened then replace it - about $4 at hardware stores. Then take a look at the muffler - there will be a spark arresting screen at its outlet - remove the exhaust snout and lose the screen - doesn't run with that screen plugged up!! Now start it back up and you might just be surprised!
If it still does not run well unless you partially choke it, turn the fuel mixture screw a quarter turn outward to admit more fuel into the carburetor. Do this until the RPM increases - careful not to go too rich - can foul out the plug! Find the sweet spot. Hope this helps you.
Posted on Jun 21, 2011
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