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    morrell's Avatar
    morrell Posts: 6, Reputation: 2
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    #1

    Mar 30, 2007, 02:50 AM
    Deere L110 cranks won't start
    My JD L110 starts fine but after a time of operation it tends to stall. After that it will crank over no problem, but will not start. I have checked spark and it looks to be getting plenty of fuel. The throttle arm doesn't look to pull right back all the way when I put throttle to slow and is at fully open position when throttle control lever is only halfway between slow and fast. Could it be flooding? Old spark plug was heavily coated with carbon and new one is already starting to carbon up after only 8 hours of use.
    newaukumdon's Avatar
    newaukumdon Posts: 525, Reputation: 44
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    #2

    Mar 30, 2007, 06:42 AM
    The throttle controls the amount of air entering the engine, that in turn creates the vacum to draw the correct amount of fuel into the system via the proper jet. Your engines centrifical governor controls the position of the throttle and if it is not running or running very poor the throttle will stay open, only after it starts does the gov bring it to a closer to close position.

    It sounds like a fuel air mixture problem but I would look to a bad air filter or carb adjustment to lean it out.

    Don
    morrell's Avatar
    morrell Posts: 6, Reputation: 2
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    #3

    Mar 30, 2007, 06:50 AM
    Thanks Don. I am guilty of never having it serviced, besides oil and filters, which I do myself. The air filter is clean, so I will check the mixture screw on the carby.

    Cheers

    Chris
    hwy61's Avatar
    hwy61 Posts: 19, Reputation: 5
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    #4

    Apr 2, 2007, 10:05 PM
    You likely have two parts inside the carb that control air flow. The outer one is the choke butterfly and the inner one is the throttle butterfly.

    I recently had a problem with the fuel shut off solenoid not operating properly and the problem was in the ignition switch. This is the small cylinder screwed onto the bottom of the carb and it's job is to seal off fuel flow when the engine is shut off. A small spring loaded rubber tipped plunger closes off the fuel unless the electric operated solenoid pulls the plunger back opening the flow of fuel.

    It is also possible to slightly engage the choke while trying to run the engine at full power, make sure you aren't pushing the throttle lever too far forward.
    morrell's Avatar
    morrell Posts: 6, Reputation: 2
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    #5

    Apr 2, 2007, 11:32 PM
    hwy61, I think you might be right about the solenoid. I dropped the solenoid and bowl and found that it was full of junk, so I flushed the lines and cleaned the carby. It ran fine, but stalled when I dropped the throttle to idle too quickly. Same problem, wouldn't start, so I drained the bowl of fuel and it started fine again.

    My exhaust manifold was also full of fuel, so I guess I am up for a new solenoid.
    newaukumdon's Avatar
    newaukumdon Posts: 525, Reputation: 44
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    #6

    Apr 2, 2007, 11:45 PM
    The solenoid is a anti backfire unit designed that when the key is turned to the "off" position at high idle the raw fuel that is drawn into a hot cylinder during shutdown is limited and does not cause a backfire.
    h0m30wn3r's Avatar
    h0m30wn3r Posts: 2, Reputation: 1
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    #7

    Sep 3, 2008, 03:52 PM
    Found a very simple and very innexpensive solution to exactly this same problem. Remove the gas cap and with a pin or small nail tip clear any dirt or gunk from the pin hole in the center of the cap. There may be a rubber vapor seal undneath.. easy to remove.
    Airflow = Good!
    Mine is a 5-6 yr-old L110 fairly well maintained. One day it started and ran for about 5min. And then stalled. It started again and then stalled in quicker succession each time afterward... finally flooding. After checking the obvious.. airfilter, spark plug and this site for possible solutions I called a local dealer (Farmington Valley John Deere, Farmington CT), spoke with the Service Dept. who suggested above!

    Hope this helps!

    "Pay it -->"
    drnull's Avatar
    drnull Posts: 7, Reputation: 1
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    #8

    May 15, 2009, 11:51 AM
    Quote Originally Posted by h0m30wn3r View Post
    Found a very simple and very innexpensive solution to exactly this same problem. Remove the gas cap and with a pin or small nail tip clear any dirt or gunk from the pin hole in the center of the cap. There may be a rubber vapor seal undneath..easy to remove.
    Airflow = Good!
    Mine is a 5-6 yr-old L110 fairly well maintained. One day it started and ran for about 5min. and then stalled. It started again and then stalled in quicker succession each time afterward...finally flooding. After checking the obvious..airfilter, spark plug and this site for possible solutions I called a local dealer (Farmington Valley John Deere, Farmington CT), spoke with the Service Dept. who suggested above!

    Hope this helps!

    "Pay it -->"
    Thought I'd confirm that this worked great. Took the gas cap off to confirm, it started right up. Cleaned out the breather hole and everything was back to normal.

    Symptoms were engine turning over with no actual cranking, and one extremely loud backfire (my ears are still ringing)
    MrsGig's Avatar
    MrsGig Posts: 1, Reputation: 1
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    #9

    May 30, 2010, 12:06 PM
    Quote Originally Posted by h0m30wn3r View Post
    Found a very simple and very innexpensive solution to exactly this same problem. Remove the gas cap and with a pin or small nail tip clear any dirt or gunk from the pin hole in the center of the cap. There may be a rubber vapor seal undneath..easy to remove.
    Airflow = Good!
    Mine is a 5-6 yr-old L110 fairly well maintained. One day it started and ran for about 5min. and then stalled. It started again and then stalled in quicker succession each time afterward...finally flooding. After checking the obvious..airfilter, spark plug and this site for possible solutions I called a local dealer (Farmington Valley John Deere, Farmington CT), spoke with the Service Dept. who suggested above!

    Hope this helps!

    "Pay it -->"
    Thank you h0m30wn3r and drnull! This issue has been troubling us for the past few weeks and just cropped up again today. The tractor would run fine for an hour or so, then it would just stall out. If you tried to start it, it would crank, but not fire up. We were thinking it was overheating, because if we let it sit for a day, it generally would start up first thing and repeat the same process.

    Followed your suggestion to clean out the pinhole in the gas cap and the mower started right up. Love the simple solution.
    yogibearh's Avatar
    yogibearh Posts: 2, Reputation: 1
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    #10

    Dec 13, 2010, 04:15 PM
    Comment on morrell's post
    I have been having a problem with it not wanting to start after I replaced the fuel pump and fuel filter and plug. It would run for about a min and then stall before I replaced Idems. I guess I will drop the solenoid and see what I have Thanks
    p4gibson's Avatar
    p4gibson Posts: 2, Reputation: 1
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    #11

    Mar 24, 2012, 12:22 PM
    I have a Deere la110 that started but then stopped after five or so minutes. I tried to restart and it cranks but light blue smoke came from the exhaust for the first three cranks. Will still crank but no smoke and will not turn over. I do have it serviced annually. Most recently I did run over a rock but it continued to run after that. Any thoughts?
    etxing's Avatar
    etxing Posts: 1, Reputation: 1
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    #12

    Apr 1, 2012, 05:34 PM
    My JD L110, 1st start after winter, would just crank but not start. Put some fuel directly into the carb and it would catch to start but quickly die again. Does not seem like the fuel is getting to the carb. Please help

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