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2510 mule won't idle

Will not continue to run unless you set idle too fast or leave choke partially pulled out. Acts like a vacuum leak but I can't locate it, this problem started suddenly.

Posted by Anonymous on

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 125 Answers

SOURCE: A week ago I started up and it runs very fast (I

Sounds like a carburetor slide stuck. Remove and service them.

Posted on Jun 15, 2009

SOURCE: I just bought a used 1982 Yamaha 650 Maxim. It had

You will have to check the float level of the carburators and hope you had used compressed air to blow out the jets!
Best still is to visit this site for more info...theres plenty in there for our type of bikes mine is XJ750RH.
Good luck.
www.xjbikes.com

Posted on Jun 23, 2010

  • 738 Answers

SOURCE: My sons yamaha pw 80 YZinger hasnt been started in

Hi, you may try draining the fuel from the float bowl through the screw at the bottom of the carb as it may have become contaminated, try leaving the choke on a while longer, if it still stalls then I would remove the carb and clean the jets and check the fuel flow, checking the float valve action before reassembling

Posted on Oct 09, 2011

duane_wong
  • 6826 Answers

SOURCE: kawasaki mule 2510 is hard to keep running or start

OK, probably the carburetor needs to be cleaned out or rebuilt.

Posted on Dec 12, 2011

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1 Answer

Engine won't run unless choke is partially closed.


when the choke is partially closed there is extra vacuum created in the venturi of the carby that assists to help pull the fuel through the main jet and the idle circuit
it indicates that the main jet circuit still has a blockage or there is insufficient fuel getting to the carby ( vent problem)
it could be from a gasket or diaphragm blocking a vacuum port or the fibre block under the carby incorrectly fitted

Aug 14, 2015 | Garden

1 Answer

Kawasaki mule 2510 is hard to keep running or start


OK, probably the carburetor needs to be cleaned out or rebuilt.

Dec 12, 2011 | kawasaki Motorcycles

1 Answer

I just got a 1997 yamaha virago 1100. It will not idle unless I leave the choke on and the engine revs at 3000 rpm. Runs perfect after 3000 rpm. Any ideas? Original factory carb settings? Thanks


Hi, Ungerconstru 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. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the blue links below. Good luck and have a wonderful day.
Bike won Run without Choke
Won Idle Choke
http://service.tanga-moteurs.ro/data/yamaha_virago_535_700_1100.pdf
OEM parts for Yamaha
Yamaha Virago XV1100K Owner Manual

Jul 29, 2011 | Yamaha Motorcycles

1 Answer

1980 Yamaha xt250 won't idle without the choke being on


Hi, Earthquakeau 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. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the blue links below. Good luck and have a wonderful day.
Older XT250 Won Run Some Choke
Bike won Run without Choke
Yamaha XT250X Service Manual
OEM parts for Yamaha
Yamaha XT250 Owner Manual

Feb 14, 2011 | 2008 Yamaha XT250

1 Answer

Fast idle


The specification calls for 900 rpms for the idle speed when warm for the 1987 Dodge Shadow.

One can adjust this with a screw on the carburetor, if it has one.

If it's fuel injected the idle speed is automatically controlled.

Fast Idle Speed HOLLEY 5220/6520 Fig. 5: Turn the adjusting screw with a screwdriver to raise or lower the fast idle speed — make sure that the adjusting screw is resting against the lowest speed step 86735g04.gif
NOTE: This procedure is performed while the carburetor is installed on the engine.
  1. On 1981–82 cars, disengage the two-way electrical connector at the carburetor (red and tan wires).
  2. On all years, disconnect the jumper wire at the radiator fan and install a jumper wire so that the fan runs continuously.
  3. On 1983–86 models, pull the PCV valve out of the valve cover and allow it to draw underhood air.
  4. Disengage the oxygen sensor system connector located on the left fender shield near the shock tower.
  5. Ground the carburetor switch with a jumper wire.
  6. Open the throttle slightly and place the adjustment screw on the slowest speed step of the fast idle cam.
  7. With the choke fully open, adjust the fast idle speed to comply with the value indicated on the underhood sticker.
  8. Return the vehicle to curb idle, then reposition the adjusting screw on the slowest speed step of the fast idle cam to verify fast idle speed. Re-adjust as necessary.
  9. Turn the engine OFF, remove the jumper wire and reconnect the fan.
  10. Reinstall the PCV valve and remove the tachometer. On 1983–86 models, reattach the oxygen sensor system connector, and remove the jumper wire from the carburetor.
Fast Idle Opening MIKUNI
  1. Before adjustment, leave the carburetor alone for approximately one hour at 73°F (23°C).
  2. Adjust the fast idle opening by turning the fast idle adjusting screw to the following specified values (drill diameter):
    • 2.6L engines equipped with manual transaxles — 0.028 in.
    • 2.6L engines equipped with automatic transaxles — 0.031 in.
Choke Valve Setting MIKUNI Fig. 6: After tightening the choke cover lockscrews, cut the heads off of lockscrews A (total of 3 screws) and stake the heads of lockscrews B (total of 2 screws) with a blunt punch 86735g56.gif
NOTE: This procedure need only be performed if the carburetor is disassembled.
  1. Fit the strangler spring to the choke lever.
  2. Assemble the choke valve, aligning the inscribed line or black painted line on the tooth of the choke pinion with the inscribed line on the cam lever.
  3. Temporarily tighten the new lockscrews.
  4. Set the choke valve by moving the pinion arm up or down, align a punched mark on the float chamber cover at the center of the three inscribed lines, and secure the pinion arm with the lockscrews.
  5. Install the choke cover and tighten the lockscrews.
  6. Cut off the heads off of lockscrews A.
  7. Stake the heads of lockscrews B using a blunt punch.
Vacuum Kick HOLLEY 5220/6520 NOTE: This procedure is performed while the carburetor is installed on the engine. If the vacuum kick is adjusted to open the choke too far, the engine may stall or idle very roughly just after cold start. If it is adjusted so that the choke does not open enough, there may be black smoke in the exhaust. NOTE: To perform this procedure, you will need a hand held vacuum pump capable of producing at least 15 in. Hg (50.6 kPa) of vacuum. The vacuum kick diaphragm may be damaged if you attempt to retract it manually. You will also need a drill or dowel which has a diameter equivalent to the specification for Vacuum Kick in the Carburetor Specifications Chart.
  1. Remove the air cleaner. Open the throttle, close the choke and hold it in the closed position, and then release the throttle to trap the fast idle cam in the choke-closed position.
  2. Disconnect the vacuum hose at the choke vacuum kick diaphragm. Connect a vacuum pump and apply 15 in. Hg (50.6 kPa) or more of vacuum.
  3. Gently move the choke blade toward the closed position just until play is eliminated from the vacuum kick linkage (so that the vacuum kick is determining choke blade position).
  4. Insert the drill or dowel into the gap between the upper edge of the choke blade and the air horn wall, toward the center of the gap. The dowel or drill should just fit into the gap. If necessary, rotate the Allen head screw in the center of the diaphragm housing to create the proper gap and then recheck with the measuring device.
  5. Restore all vacuum connections and reinstall the air cleaner.

Aug 05, 2010 | 1987 Dodge Shadow

1 Answer

It starts and runs but when you turn it off it won't restart.


I think the warm start procedure in the manual is causing it to flood. Try it like this, if you continue having problems reply below and we will try something else. PLEASE read #3 (Cold and Warm) a few times before attempting to start. Try it without 1/2 choke (your manual); completely open.
Start Procedure
Cold:
  1. Ignition on/off to on.
  2. Set compression release – optional step even if saw is equipped with a compression release.
  3. Pull (close) choke, set fast idle (done when choke closed on some saws); pull starter and listen for an attempt to start. once heard (usually two pulls; no more than 4).
  4. Set compression release – optional step even if saw is equipped with a compression release.
  5. Push (open) choke pull starter until it starts. (usually first pull).
Warm:
  1. Ignition on/off to on.
  2. Set compression release – optional step even if saw is equipped with a compression release.
  3. Pull (close) choke, set fast idle (done when choke closed on some saws) – Do not pull with choke closed or at 1/2 choke position.
  4. Push (open) choke, pull starter until it starts. (usually first pull).
Hope this helps.
Lou

Feb 21, 2010 | Poulan Garden

1 Answer

18"poulan chainsaw


Start at 1.5 CCW form lightly seated then tune for performance like this:
Carburetor Adjustment by Madsens.com
http://www.madsens1.com/saw%20carb%20tune.htm
CW is leaner; to lean will destroy the saw. If over tightened closed (CW) the adjustment screw faces are easily marred; marred adjustments are difficult to impossible to set properly.
Clean the air filter; adjusting with a dirty filter can cause a run lean condition once cleaned and the saw run.

There are 2 wav (sound - idle & full – may not be highlighted) files that I find most helpful, I think you will too.

I think your starting procedure may be the cause of flooding. Flooded is the #1 cause of hard starts in 2-cycle engines. Read carefully the recommended start in your manual. most miss the second note. It should be similar to this (read 3, read it again):
Warm start in the manual says 1/2 choke BS. Close choke, (sets fast idle) open choke, pull rope.
Start Procedure
Cold:
  1. Ignition on/off to on
  2. Set compression release – optional step even if saw is equipped with a compression release
  3. Pull (close) choke, set fast idle (done when choke closed on some saws); pull starter and listen for an attempt to start. once heard (usually two pulls; no more than 4).
  4. Set compression release – optional step even if saw is equipped with a compression release.
  5. Push (open) choke pull starter until it starts (usually first pull).
Warm:
  1. Ignition on/off to on
  2. Set compression release – optional step even if saw is equipped with a compression release
  3. Pull (close) choke, set fast idle (done when choke closed on some saws) – Do not pull with choke closed.
  4. Push (open) choke, pull starter until it starts (usually first pull).
If you still have trouble reply as you did before. I will get back to you. HTH
Lou

Feb 18, 2010 | Poulan Garden

1 Answer

The engine is flooding while trying to start


Clean the air filter and spark arrestor (muffler)
Drain and refill the feul tank with mix less then 1.5 months old.
Start Procedure
Cold:
  1. Ignition on/off to on
  2. Set compression release – optional step even if saw is equipped with a compression release
  3. Pull (close) choke, set fast idle (done when choke closed on some saws); pull starter and listen for an attempt to start. once heard (usually two pulls; no more than 4)
  4. Set compression release – optional step even if saw is equipped with a compression release
  5. Push (open) choke pull starter until it starts. (usually first pull)
Warm:
  1. Ignition on/off to on
  2. Set compression release – optional step even if saw is equipped with a compression release
  3. Pull (close) choke, set fast idle (done when choke closed on some saws) – Do not pull with choke closed.
  4. Push (open) choke, pull starter until it starts. (usually first pull).
If it still does not start reply (with what you have done and we will continue. HTH
Lou


Feb 06, 2010 | Garden

1 Answer

Husky viprating on tick over and now wont start


I think you are saying it sputters but won't run. Once it attempts to fire open the choke or it may flood. My 359 start:
Cold: pull out choke control, pull starter (usually twice) while listening for attempt to start. Once it fires push choke control in and
continue pulling (usually once more).
Warm: pull out choke control (sets fast idle), push choke control in, pull starter.
Page 19 of my manual.
Lou
Once flooded these are a bear to start.

Aug 25, 2009 | Husqvarna , No.455 Rancher, 20" Gas -...

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