Question about Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer

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Trimmer runs on half choke only - Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer

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It's the muffler. Everyone thinks fuel, carburetor, mixture. They're wrong. The muffler is clogged and the unit can't be tuned to high throttle until you clean it.

Steps: Remove the back housing to access the muffler. You may want to remove the gas tank to avoid a spill. Remove the muffler (2 large screws). Remove the muffler door (3 small screws). The screen should be cleaned using a pin (poke out any hardened material). Most important: The muffler door is 2 parts. Pry it apart and scrape off the burnt carbon that is clogging the exhaust path. Re-assemble and start.

Posted on May 03, 2010

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Check fuel lines inside and outside tank for cracking or splitting - possibly sucking air-if ok disassemble and clean carburetor with spray carb cleaner, be sure to get idle and high speed jets.

Posted on Apr 25, 2010

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Posted on Jan 02, 2017

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SOURCE: Ryobi bc30 gas trimmer wont run full speed will

I have the same issues. I think the solution is to toss it and buy a real one from an actual lawn care dealer that sells quality brands. Yes, they will cost about $200 and up, but it's worth it to have something alot more reliable, and can be worked on when needed. I know I have wasted more than that extra $100 in time/effort with this thing, and I still plan to buy a new one. So now, that quality trimmer will cost more because of the money I wasted on the Ryobi in the 1st place.

Posted on Jul 22, 2009

rycgl
  • 1545 Answers

SOURCE: Ryobi CS30 Trimmer starts and

You probably need a slight carburetor adjustment. Try to turn the L mixture screw (the one near the bottom of the carburetor on the air filter side, closest to the engine) 1/8 to 1/4 of a turn counterclockwise. These mixture adjustment screws ( L and H) have odd heads on them and conventional tools won't turn them. I use an automotive type plastic wire connector (around 22 gauge) with a ring terminal end which I can hold. Tap the plastic end of the wire terminal connector onto the head of the screw with a small hammer and this will enable you to adjust the L screw. This adjustment will increase you high speed side and possibly allow it to run off choke in a regular manner.

Posted on May 22, 2011

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Has the air filter been removed, damaged, or the airbox not seated propelry on the carbs neck, this would cause it to run lean hence requiring the choke to be in operation all the time. Have you tried fresh fuel?? This goes stale after a while. I hope this is helpful, Ian

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Homelite gas trimmer will not run without half choke and throttle


You need to disassemble the carb. and spray with carb. cleaner. If you need tips on how to do this, just let me know. You may need a new carb. kit as well, but we won't know that until you first perform the first step, or if the carb. parts are more than 3 years old. If they are, then go ahead and buy the carb. kit and replace the parts.

Jim

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