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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I have an older craftsman snow blower 10 hp. It starts ok with full choke, runs ok half choke, backfires with no choke-run position.


It's too lean; not enough fuel mixed with the air. Look for the main mixture screw--it should be a large screw with a spring under it on the carburetor. Run the engine until it's warm.

With the engine running, turn the screw outward (lefty-loosey) about 1/8 turn slowly and see if it improves. Slowly turn the screw back and forth until it runs best with the choke completely off. Then set it 1/8 turn richer (turn screw outward 1/8 turn) than the best position.

Reason for doing this: Conditions change, even the barometric pressure. Small engines run okay if they are a little rich but not if they are a little lean.

Mar 03, 2015 | Garden

1 Answer

95 suzuki 250 quad king, at full throttle it runs at half power, choke seems inop


First make sure your choke circuit is working. May be an indication that your carb needs to be cleaned. I wouldn't replace it yet= clean it. If the choke circuits and the carb check out fine. An unresponsive motor/ carb usually means bad valves or valve timing. Example: it runs rich, spits fuel out the carb no matter how lean you set it. Even with the idle air closed it runs rich... intake valve is not closing or closing late. In that case it needs valves serviced.

Aug 26, 2014 | Motorcycles

2 Answers

Why Tiller cranks but will not run when you need it to till?


If you don't have a manual, could can read/download it at this link.
If the engine stalls under load, the mixture may be too lean. There should be a mixture screw on the carburetor. Note its position, and turn it counter-clockwise 1/8 of a turn to see if there is any improvement in engine performance. Repeat this but don't exceed about a half turn.
The tank has a vent and this should be kept vertical under the cylinder cover in the small "pocket" in the cylinder cover.
Lack of power can be caused by a dirty air filter or blocked muffler screen.

See the article below for troubleshooting 2-cycle engines
String Trimmer Won Work 2 Stroke Engine and Carburetor Troubleshooting

May 30, 2014 | Mantis 2-Cycle Tiller

1 Answer

Bolens cultivator model BL410 won't keep running


clean the screen inside the muffler

Aug 03, 2012 | Garden

1 Answer

Motorcycle starts on full choke but will not run even given more fuel even if the choke is turned off after warm up


Hi, Edward and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the links below. Good luck and have a nice day.
Bike won Run without Choke
Yamaha XV535 runs only on idle choke
Yamaha XV 535 DX Virago Service Manual
OEM parts for Yamaha
http://www.starmotorcycles.com/assets/service/manuals/2005/LIT-11626-18-21_1000.pdf

Nov 13, 2011 | 1994 Yamaha XV 535 Virago DX

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.

Oct 03, 2010 | Tecumseh 5hp Engine Snow King Mtd Blowers...

1 Answer

This is a lawnboy mower about twenty years old and has run fine intil about a week ago. Now...after starting...It will surge up and down at full speed...then start to bog down unless throttle is placed...


drain all gas out of the tank and carb the new gas with 10% ethenal is ruining old gas engines after everything sits for a day install a plastic shut off valve in gas line. put high test gas with the seafoam then turn gas valve off after every use it will run good. then call your congressman and complain otherwise we will all be replacing any engine older than 4 years old

Sep 15, 2010 | Garden

1 Answer

Brand new Honda Generator 2000i will not start. uhhg


Hi and welcome to FixYa I am Kelly.

Things that must be verified.

1. Fuel selector: ON
2. Start run sw: ON
3. Oil Level : Full
4. Choke selector FULL ON for no more than 2 pulls initially The half choke then off
5. Spark at the Spark Plug YES? NO?
a. No spark suspect low oil level sensor is grounding the ignition either due to low oil level or it just is not working properly.

After doing all of the above...

Spark Plug WET or DRY? Dry and still won't start check fuel supply. If you use the choke with the start run switch in the off position the spark plug should get WET. Spark plug does not get wet... with choke on and ignition off. Fuel supply problem.

At this point I suspect either the Oil Level is incorrect or... that the FUEL SELECTOR is OFF.

If you need more help just respond here and we can press on.

Thanks for choosing FixYa

Kelly

Sep 02, 2010 | Honda Electrical Supplies

1 Answer

Runs on choke a little


sounds like the carburetor has gummed up a bit, and may need adjustments - or, the fuel pickup in the tank has come loose [i.e.: deteriorated fuel lines] - also, make sure your gas mix is FRESH. if your gas mix is more than 2 months old, dump it

Sep 19, 2009 | Craftsman 25cc Gas Line Trimmer

1 Answer

Cannot keep tiller running


Could a gas/oil mix been used by mistake. When you cleaned carb did you also clean dusty air filter?? Try leaveing off filter first and run. Are you sure you are in "choke position" when engines seems to be running ok,be sure to double check yourself here. If engine runs ecelleant in "choke" sounds like your in "Run" position and positioning is problem not performance.

Please rate. Thanks jj505

Mar 28, 2009 | Garden

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