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  1. #1

    Join Date
    Sep 2016
    Posts
    4
    Location
    Texas
    Mower
    honda hrx217hxa

    HRX217HXA motor revs up good, sputters down, then revs up again

    Hi, my mower will run great for 10 seconds, then sputter down, cough a little black smoke, then rev up again, run good for 10 seconds, then repeats. The old carb was doing this, so I put a new carb on yesterday. The mower is still doing this revving up, sputtering down, revving up again, over and over. Does the carb need adjusting? other issue?

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  3. #2

    2,500 Post Club
    Boobala's Avatar
    Join Date
    Feb 2015
    Posts
    4,550
    Location
    Central Fl. about 2 hours from DAYTONA !
    Mower
    Murray Select 21 H.P. 46" ( 2004 )

    Re: HRX217HXA motor revs up good, sputters down, then revs up again

    Sounds like you might have a "gremlin" in the fuel system, MY procedure, is to THOROUGHLY clean the ENTIRE fuel system, inside of gas-tank= IMMACULATE, fuel lines, and filter replaced, fuel shut-off valve, SUPER cleaning OR replaced, THEN either an EXCEPTIONAL cleaning or O/H of the carb. one final step, be absolutely sure your gas-can ( the one you use to fill the machine(s) ... double-triple check that too, I've O/H carbs for folks, only to find out their recurring problem was caused by &@#$%$#@ in their gas-can, something usually over-looked. ..


    Mower : Murray Select 46 " deck
    Model : 465306X8A
    Serial # : 733781D027
    Date of Mfg. : 2003/12/03

    Engine : Briggs & Stratton
    I/C V Twin
    21 H.P.
    Model : 4045A7
    Type : 0211 E1
    Code : 031104YG
    Family YBSXS . 7242VF 22844

  4. #3

    Join Date
    Sep 2016
    Posts
    4
    Location
    Texas
    Mower
    honda hrx217hxa

    Re: HRX217HXA motor revs up good, sputters down, then revs up again

    Can you describe the procedure and what chemicals you use to clean the gas tank, carb, and fuel lines?

  5. #4

    Join Date
    Aug 2013
    Posts
    44
    Location
    Maryland
    Mower
    Honda

    Re: HRX217HXA motor revs up good, sputters down, then revs up again

    Is this a auto choke or a manual choke.
    To remove the gas tank take the 3 10mm nuts from the starter . Remove the starter then the gas tank.
    Yo do not need any chemicals for the tank. A good washing with water and let it dry.
    If you replaced the carburetor you should be able to also replace or clean the lines.

  6. #5

    Join Date
    Aug 2016
    Posts
    11
    Location
    United States of America - Terra
    Mower
    Honda

    Re: HRX217HXA motor revs up good, sputters down, then revs up again

    At risk of being captain obvious, you have checked the basics as well right? Air Filter / Spark Plug / Fresh Gas...

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