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Honda mower problems #5435739 05/22/20 09:59 AM
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cwilliamsws6 Offline OP
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I have an almost 10 year old Troy-Bilt self propelled push mower with the Honda engine on it. Lately it's been giving me a lot of trouble and I need guidance on where to begin with it.

Some things it's been doing:

1) Going through a LOT more gas than it usually does. Usually one tank does the front AND back yard with half a tank to spare but now a full tank barely finishes the front

2) Rough idle and black smoke, with how it runs you'd think I accidentally put diesel in it or something

3) Spark plug was really fouled and it looked like the electrode had even started to melt a bit

Some things I found while poking around at it:

1) The air filter was SOAKED in gasoline after the engine stalled out and wouldn't start again even with starter fluid and being choked

2) I replaced the spark plug and now every time I start the engine it shoots a fireball out the exhaust and makes a loud bang

I really want to get this sorted out and be able to save it, I do not want to replace this mower because until lately it's always been super reliable.


2007 Honda CR-V LX "The Linoleum Falcon" 215K miles
Castrol conv 10w30, Pyroil oil treatment 15oz, 7317 orange can
"Bad decisions make good stories."
Re: Honda mower problems [Re: cwilliamsws6] #5435740 05/22/20 10:01 AM
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TargaMonteSS Offline
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I think your needle in the carb is not seating making it flood. When the bowl is full the float should seat the needle. If it doesn't seat gas will continue to run through. Time for a new carb or a cleaning.

Re: Honda mower problems [Re: TargaMonteSS] #5435741 05/22/20 10:05 AM
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CharlieJ Offline
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Originally Posted by TargaMonteSS
I think your needle in the carb is not seating making it flood. When the bowl is full the float should seat the needle. If it doesn't seat gas will continue to run through. Time for a new carb or a cleaning.


What he said. I had the same symptoms happen to my Briggs engine a year ago. Needle wasn't sealing for some reason. Cleaning didn't fix my problem, replaced the carb and fixed it.


'07 Mazda3 2.3 : Shell Rotella Gas TRUCK 5w-30
'84 Mazda Rx-7 : Valvoline Maxlife 10w-30
Re: Honda mower problems [Re: TargaMonteSS] #5435742 05/22/20 10:06 AM
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Whimsey Offline
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Originally Posted by TargaMonteSS
I think your needle in the carb is not seating making it flood. When the bowl is full the float should seat the needle. If it doesn't seat gas will continue to run through. Time for a new carb or a cleaning.


+1

Whimsey

Re: Honda mower problems [Re: TargaMonteSS] #5435743 05/22/20 10:06 AM
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cwilliamsws6 Offline OP
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I'll pull it apart and look at it when I get off work tonight. I suspected it could be something along those lines but I wanted confirmation. Thank you!


2007 Honda CR-V LX "The Linoleum Falcon" 215K miles
Castrol conv 10w30, Pyroil oil treatment 15oz, 7317 orange can
"Bad decisions make good stories."
Re: Honda mower problems [Re: cwilliamsws6] #5435744 05/22/20 10:06 AM
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zfasts03 Offline
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I agree. Needle valve in carb. not seating. I had this happen with my GCV160. Pulled and disassenbled carb 2x. Was still having issues and put a new carb. on it.

Change oil also as excess fuel probably made it in the crankcase.


- 03 Corvette Z06
Amsoil 5w-30 SS
- 07 Honda Accord 2.4L
Amsoil 5w-20 SS
- 16 Suburban 5.3L
Amsoil 0w-20 SS, XG10575(16-28 by-pass)
- 18 4Runner TRD Off Road
Amsoil 0w-30 SS, TRD filter
Re: Honda mower problems [Re: cwilliamsws6] #5435749 05/22/20 10:15 AM
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Danh Offline
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If this has a foam pre-air filter, any chance you may have oiled it on purpose or accidentally? This happened on my Honda mower and attracted dirt creating a super-rich mixture and no end of problem ‘til fixed.

Re: Honda mower problems [Re: cwilliamsws6] #5435750 05/22/20 10:17 AM
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MacManus99 Offline
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This might go without saying, but change your oil after you remedy the carburetor. Chances are some unburned fuel has made its way past the rings and into the crankcase. Best of luck with the repair!


2016 Chevrolet 2500 - 6.0L
2013 Scion FR-S - 2.0L
2012 Ford Escape - 3.0L
Re: Honda mower problems [Re: cwilliamsws6] #5435751 05/22/20 10:17 AM
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cwilliamsws6 Offline OP
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No foam pre-filter, or if there was one it's long gone. Just the paper filter.


2007 Honda CR-V LX "The Linoleum Falcon" 215K miles
Castrol conv 10w30, Pyroil oil treatment 15oz, 7317 orange can
"Bad decisions make good stories."
Re: Honda mower problems [Re: cwilliamsws6] #5435752 05/22/20 10:19 AM
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cwilliamsws6 Offline OP
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Would this one be okay? I like that it includes the inline filter.

https://www.ebay.com/i/192787616753..._hj47pGTSY0-Ik__wNCObwrAXHhoC-esQAvD_BwE


2007 Honda CR-V LX "The Linoleum Falcon" 215K miles
Castrol conv 10w30, Pyroil oil treatment 15oz, 7317 orange can
"Bad decisions make good stories."
Re: Honda mower problems [Re: cwilliamsws6] #5435766 05/22/20 10:39 AM
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zfasts03 Offline
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I bought the original Honda one. I have a feeling it might be a crap shoot chances something else/


- 03 Corvette Z06
Amsoil 5w-30 SS
- 07 Honda Accord 2.4L
Amsoil 5w-20 SS
- 16 Suburban 5.3L
Amsoil 0w-20 SS, XG10575(16-28 by-pass)
- 18 4Runner TRD Off Road
Amsoil 0w-30 SS, TRD filter
Re: Honda mower problems [Re: cwilliamsws6] #5435780 05/22/20 10:58 AM
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mk378 Offline
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Choke stuck on? Remove air cleaner visually check the choke. Run with the air cleaner off see if the black smoke and bad idle is resolved.

Problem with the needle valve would usually cause all the gas to run out of the tank through the intake when not running.

Re: Honda mower problems [Re: cwilliamsws6] #5435781 05/22/20 10:59 AM
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CT8 Offline
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Carb problem would be the first place to start the diagnosing.


2015 F150 2.7
2018 F350 6.2
Re: Honda mower problems [Re: cwilliamsws6] #5435794 05/22/20 11:09 AM
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Reddy45 Offline
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Originally Posted by cwilliamsws6
Would this one be okay? I like that it includes the inline filter.

https://www.ebay.com/i/192787616753..._hj47pGTSY0-Ik__wNCObwrAXHhoC-esQAvD_BwE


I would not get a generic chinese junk carb. A genuine Honda one will cost about double but will probably last a lot longer.

Re: Honda mower problems [Re: cwilliamsws6] #5435797 05/22/20 11:15 AM
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benjy Offline
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check out mower forums as they may have some vids on carbs etc

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