Engine starts but bogs down under load
Results 1 to 5 of 5
  1. #1
    Junior Member
    Join Date
    Jun 2013
    Location
    MI
    Posts
    12
    Thanks
    3
    Thanked 2 Times in 2 Posts

    Engine starts but bogs down under load

    This started happening in the middle of mowing after taking a short break and letting it idle.
    I have a 5020v mower.
    The engine starts fine. (Sometimes a backfire on startup) but bogs down when I turn on the ptu or if I load the engine by cutting grass.

    I cleaned off the air filter and that didn't help much. What are other things that I can check?


    Here's a link to a video of the problem

  2. # ADS
     

  3. #2
    Senior Member L.Fure's Avatar
    Join Date
    Jan 2016
    Location
    Leslie, Wisconsin
    Posts
    723
    Thanks
    92
    Thanked 349 Times in 204 Posts
    Have you tried to adjust the load jet on the carburetor? That it if it has one. Does the engine backfire out the exhaust or out of the carburetor? Could be as simple as something plugging the carburetor at the load jet. Try a half can of Seafoam in the gas tank, and run it for about a hour or until the engine starts running correctly.

  4. The Following User Says Thank You to L.Fure For This Useful Post:

    tfedullo (06-12-2017)

  5. #3
    Senior Member MAF143's Avatar
    Join Date
    Jul 2015
    Location
    Galion, OH
    Posts
    395
    Thanks
    314
    Thanked 277 Times in 151 Posts
    does adding choke help? if so it is running too lean, like Fure says, seafoam and if that doesn't help, clean the carb. Did you pull a plug wire to see if it is running on both cylinders?

  6. The Following User Says Thank You to MAF143 For This Useful Post:

    tfedullo (06-12-2017)

  7. Remove Advertisements
    CaseColtIngersoll.com
    Advertisements
     

  8. #4
    Junior Member
    Join Date
    Jun 2013
    Location
    MI
    Posts
    12
    Thanks
    3
    Thanked 2 Times in 2 Posts
    So, I think its running rich, backfireing out the exhaust and appears to be spitting out carbon under load.

    Adding choke kills it.
    I added sea-foam, and now it won't completely die, but still bogs down. I sprayed in carb cleaner down the intake as well, also improved it a little but not completely.
    Have spark on both and its running on 2.

    I think the load jet has something wrong as it idles perfectly. I think it need to learn how to clean a carb.

  9. #5
    Senior Member L.Fure's Avatar
    Join Date
    Jan 2016
    Location
    Leslie, Wisconsin
    Posts
    723
    Thanks
    92
    Thanked 349 Times in 204 Posts
    Keep running it with the seafoam in the gas tank. It will eventually clear out the carburetor.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •