Question about Ryobi Backpack Blower 25.4cc

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Won't keep running except at 1/2 choke or a little above

4 months old. Never seemed to develop full power. Won't run in run position for more than 2 minutes. Requires full choke to start. Checked fuel quality/mix. Can't find repair service (Augusta GA). Home Depot say contact Ryobi.

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  • 3cdiehl Mar 25, 2009

    when starting at full choke, it will try to start, then i put choke to half choke, then it will start, i let it run at half choke for a minute then place choke in the run position and it will die, the blower will only run in half choke position and does not have full power, this was a christmas gift and only have used it once. model# ry009973

  • josh1111 May 11, 2010

    check the air filter and replace it?

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  • 6 Answers

Ahter you start it up turn choke too off position

Posted on Mar 20, 2009

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1 Answer

How do I start a weedeater fb25?


Press primer bulb 6 times
Move throttle lever to start position
Move choke lever to full choke position
Pull starter rope sharply until engine attempts to start, but no more than 5 pulls.
Move choke lever to half choke position. Pull starter rope sharply engine runs. If engine hasn't started after 5 pulls, repeat all steps above.
After warming up for 10 seconds, move choke lever to run position.

Manuallib.com has a manual for this model available for free download

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Ryobi CS30 Trimmer starts and runs in full choke and half choke but stumbles and stalls on run. Not up to full rpms when in full choke and half choke....


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.

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1 Answer

Engine starts fine but lacks power until it warms up for 2 to 5 minutes. Carb is ok, replaced head gasket. Just started doing this


If it starts at completely cold to fine tune the high jet adjustment.first off the high speed jet should be initially set at 1 1/2 turns out from lightly bottomed all the way in. next when you do your prestart routine,choke all the way on,primer pumped two times,throttle set at the high speed position,ignition key on,fuel line turned on.(this is my prestartup for my 8hp tecumseh)yours may be slightly different.use whatever starts your machine the easiest! once my machine starts up i can almost immediately turn the choke completely off. i can do that because the high speed jet is opened enough or rich enough for the engine to run.if you adjust the high speed in it will lean the motor out(you found that to be true!) to where it will miss and backfire and eventually quit. start at 1 1/2 turns out and start the engine,once the engine starts if you take the choke off right away use what it does as a guide to high speed adjustment. if the engine quits turn the screw out 1/4 turn and so on.use the very first cold startup as the test for high speed mixture adjustment. at completely cold startup you have the jet adjusted correctly when the engine will sustain itself when you completely take the choke off very shortly after startup. let the amount of choke you need at cold start to keep the engine running be your guide.too lean and the engine will not stay running without the choke at all,too rich and the engine will not pull under extreme loads and will show signs of black soot out the exhaust. you want the jet adjusted so within 5 seconds of cold start the engine will stay running with no choke at all. find that needle setting ( don't ad any more!! ) and you'll be good to go.keep in mind the above is not optimum and is a little rich but you will like the way it starts,stays running,and overall performs as adjusted above.

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My Echo pb251 is only 3 months old. After about a month of perfect running, one day it would not run above idle. You have to partially choke it to get any speed out of it. It's like the high speed jet is...


check your exhaust (muffler), it has 4 or 5 small exit holes, the new gasket between the exhaust port and "muffler" has been known to come apart and plug the exhaust holes which will keep your engine from running much above idle, it can't exit the air/fuel because of the blockage and that will let it run barely above idle, its probably hard to start too.

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POULAN FEATHERLITE LEAF BLOWER WILL ONLY RUN AT 1/2 CHOKE


Sounds like you will need to clean your carburetor, or rebuild it. Could be some debris in the jets of the carburetor. If the blower is over a couple years old, then I also recommend that you buy and install a new carburetor repair kit, because the diaphragm will get hard and that will cause it to be hard to crank and not run at full speed. Hint: When you clean your carburetor and remove the jet screws, count the number of turns it takes to seat the jets from their original position. That way when you go to put the jets back in, you know how many turns they were in/out. Please rate me, Thanks Good Luck, I hope this helped

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Is there a choke setting and throttle setting for best results in getting the MTD yarde amchine started?


Most of the small outdoor power equipment that I have used takes the following to start:

1. Prime 6-8 times, or whatever the manual calls for.

2. Choke the carb to full choke.

3. Pull starter rope. It may sputter and die.

4. After it sputters and dies, put the choke on 1/2. Pull a time or 2 more and should start. Run like that 10 seconds or so, then take choke all the way off.

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1 Answer

The best way to start cold husqv leaf blower 145


Most of the small outdoor power equipment that I have used takes the following to start:

1. Prime 6-8 times, or whatever the manual calls for.

2. Choke the carb to full choke.

3. Pull starter rope. It may sputter and die.

4. After it sputters and dies, put the choke on 1/2. Pull a time or 2 more and should start. Run like that 10 seconds or so, then take choke all the way off.

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1 Answer

I have a Ryobi trimmer and when I start it will not stay on


Here was my solution:
I was having problems with my ryobi cs30 weedeater also. It would start up fine on full choke, but i could not give it more than half throttle or ever take the choke off or it would stall out. I replaced fuel mixture, spark plug, spark arrestor/exhaust, fuel lines, cleaned carb, and still nothing! I was considering getting a better machine. Then i decided to play with the carb adjustments.(on my cs-30, they are two screws on the carb that have a "L" and "H" next to them) I dont think you can get the specialty tool for adjusting the carb unless you are a repair tech, so i just took a Dremmel tool with the circular cut-off wheel to the head of the specialty screws and made them into "flat-head" screws so i could adjust them with a regular screwdriver (if you dont have a dremmel too, get one!) (As i was cutting into the head of the screws, i also cut into the casing protecting the head of the screws that was in the way, this does not cause any damage to the unit, that casing is only there to keep "un-certified" people from adjusting it for themselves.)
Now to the easy part: The "L" screw adjusts the idle fuel mixture and the "H" screw adjusts the full throttle fuel mixture. turning the screws clockwise make the machine run leaner (less fuel) and counter clockwise makes it run richer (more fuel).
-I started out by turning each screw 1/2 turn counter clockwise and started it up, then as it was idling, i started adjusting the "L" screw as i was moving the choke position to run, after a few full turns counter clockwise of the "L" screw, it was idling perfectly in the run position, then i did the same thing the the "H" screw while holding down the throttle and i got it to run perfectly in the run position. Now it is running way better than it ever has. I hope this helps everyone.
Good Luck!

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1 Answer

Blower does not stay running


Make sure you have the propper mix of gasoline and oil. If the fuel is old mix new fuel to proper ratio. Find your manual and find the low speed fuel adjustment and the high speed fuel adjustment on the engine. First, turn the screws in and count the turns so you know where you started. Return the screws to the origional position. Usually 2 to 2-1/2 turns are a good starting point if you get them messed up. If the engine runs with the choke on you have to open the high speed jet a bit, 1/4 turn CCW. Keep trying this and get the feel of the change in the engine performance. If you have too much fuel the engine will not get to peak RPM. The low speed jet works similar but you have to adjust it so the engine idles at a decent RPM. This should get you on the path.

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