Sounds like a fuel problem - have you tried using partial choke? At least, this might verify that you just have a fuel problem. The 4-stroke is not as temporemental as the 2-stroke, but worth checking a few simple things : Is there an obstruction in the fuel supply ? Is the fuel tank supposed to be vented - if so, is the vent blocked ? Is there some dirt in the fuel, leading to a blocked jet in the carburetor ? - if so, drain/empty the carburetor, clean sediment & ensure all jets are clear and refill whole system with clean fresh fuel : If the carburetor or any part of it is loose, there might well be an Induction air-leak ( which could impair the engine's intake of fuel ) : And (of course ) - Is the spark-plug badly "gapped" or fouled ? Try to isolate and eradicate in a methodical way, good luck !
SOURCE: Ryobi string trimmer -weed eater pull cord hangs out wont start
What model number is your Ryobi?
SOURCE: My Ryobi weed eater loses power at working speed after 5 minutes.
you need to replace fuel filter inside the fuel tank . fish it out with and empty tank using a coat hanger and a small hood bent on the end.filters are around $9.00
SOURCE: i have a 31 cc ryobi weed eater start for about
I think a new carburetor kit and a good carburetor tune up is in order my friend. Sounds like it's starving for gas. If it bogs down after warm up when you throttle it, then yes it needs a carb tuning. The L screw is the low side screw and should be turned in lightly until it seats then back it out one and quarter turns (1 1/4). The H screw is your high speed screw. Also, turn it in lightly until it seats, then back it out approximately a 3/4 turn. With these settings the unit should start and may even stay running. Again, if it bogs when throttled, while running turn the L screw out a little more maybe only 1/16th of a turn and then try it again. If it does rev then you'll have to adjust the H screw in about a 1/16th of a turn. But make sure you only do this after the engine has warmed up.
Hope this works, good luck
Skidooer
Testimonial: "i,ll try this thanks a lot "
SOURCE: replacing fuel lines on ryobi weed eater,need
This is an ongoing issue for users, and rightfully so. Small diameter line out of fuel tank (has filter in-tank on end) connects to the side of the carburetor that has the fuel pump....that is the cover without the hole in it. Other larger diameter fuel line out of tank connects to the longer nipple on the external purge/primer bulb. The bulb "pulls" fresh fuel from the fuel tank to the carb and then out of the carb to itself, where it then pushes any air/old fuel back into the fuel tank. The remaining larger diameter fuel line in this setup goes from the metering chamber (has cover with writing on it and a vent-hole) side of the carburetor to the smaller nipple on the purge/primer bulb. Years ago on 2-stroke trimmers, primers were not even used,...you choked the carb with a slide lever and gravity let fuel enter the carb from above...a few pulls, a "pop"...slide it off of choke and away you went.
If the purge/primer bulb is on top of the carb...small line from carb body to small hole in tank with filter. Larger diameter line goes from the bulb on the fuel pump side of the carb to the larger hole in the fuel tank where the line is held in place with a nylon nipple connector that keeps the line from pulling out of the tank.
SOURCE: the ryobi weed eater starts but then dies when you
did you set the gap on the new spark plug this you can google or check for last plug then use clean fuel/mix
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