Recent Topics
Honda Pilot gas mileage
by G-MAN
Yesterday at 09:21 PM
Anyone else fed up with today's country music?
by 04SE
Yesterday at 08:52 PM
Best Oil Filter For A 2001 Toyota Avalon V6
by crazyoildude
Yesterday at 08:33 PM
Had Trav service my injectors.
by ls1mike
Yesterday at 08:14 PM
Video review/test - Noco Genius Boost
by 901Memphis
Yesterday at 07:24 PM
Interference diesel engine
by MDettling
Yesterday at 07:06 PM
Corolla 1/2 quart too much ATF?
by Corollaman
Yesterday at 06:42 PM
yr car has a security system. u lose all the keys,
by edwardh1
Yesterday at 06:15 PM
Attepted to steal van
by Scott_mi
Yesterday at 04:36 PM
is there an advantage to exercise spare tires?
by friendly_jacek
Yesterday at 04:06 PM
Type b grease for Sawzall
by Dan55
Yesterday at 03:56 PM
Charged By Dogs on Bicycle (Different Dogs)
by john_pifer
Yesterday at 03:50 PM
Newest Members
rvs, tortillasoup, Natedawg, exaltedfox, universalpapers5
51639 Registered Users
Who's Online
23 registered (bobfather99, Chuckinator, Bookmaker, Char Baby, coach477, 3 invisible), 632 Guests and 172 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51639 Members
64 Forums
220948 Topics
3491864 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Topic Options
#3141710 - 10/01/13 04:33 PM One spark plug carbon fouled??
callbay Offline


Registered: 05/29/05
Posts: 610
Loc: Ozark Mountains
20 HP Kohler V twin. Engine was missing so I put in new plugs. The exact Champions the manual called for. One of the old ones was carbon fouled. The other one normal. It ran well with the new plugs for a few minutes but then fouled the plug again and started to miss again.

The welder/generator has about 1,200 hours on it.

Any ideas?? Thanks!

Top
#3141741 - 10/01/13 05:09 PM Re: One spark plug carbon fouled?? [Re: callbay]
nitehawk55 Offline


Registered: 04/01/10
Posts: 1043
Loc: Ontario , Canada
It's running rich for some reason . Is the air filter OK ? , if it is I would suspect an issue with the carb which is likely if it's been sitting for a time unused . It may also be possible the coil to that plug is weak and misfiring .

I have the same engine in my New Holland/Toro lawn tractor and it's been fine with plugs .
_________________________
05 Ford Five Hundred AWD 3.0 DOHC V6 CVT tranny

Top
#3141749 - 10/01/13 05:17 PM Re: One spark plug carbon fouled?? [Re: callbay]
callbay Offline


Registered: 05/29/05
Posts: 610
Loc: Ozark Mountains
It has a brand new air filter and prefilter.

Top
#3141879 - 10/01/13 07:36 PM Re: One spark plug carbon fouled?? [Re: callbay]
Zaedock Offline


Registered: 09/10/05
Posts: 3836
Loc: Massachusetts
Kohler V twin - check the head gasket on that cylinder.
_________________________
2012 F150 Ex-cab 5.0L/2004 Malibu Maxx LT
1992 YJ "The Heep"/1994 Olds Cutlass Ciera 3.1/auto
1975 Ford Bronco/1959 Willys CJ5/20XX Custom rock crawler

Top
#3141885 - 10/01/13 07:40 PM Re: One spark plug carbon fouled?? [Re: callbay]
bubbatime Offline


Registered: 03/18/08
Posts: 1296
Loc: South Florida
Worn rings on one cylinder?
_________________________
2010 Acura TSX 2.4L Havoline Syn 5W20
2009 Chrysler Town & Country 4.0L Castrol GTX 10W30
2006 GMC Sierra 4.8L Quaker State GB 5W30

Top
#3141895 - 10/01/13 07:50 PM Re: One spark plug carbon fouled?? [Re: callbay]
NHGUY Offline


Registered: 10/09/11
Posts: 3367
Loc: USA
I prefer Autolite or NGK plugs.Although the "easy start" Champions arent bad.

Top
#3141988 - 10/01/13 09:14 PM Re: One spark plug carbon fouled?? [Re: callbay]
jhellwig Offline


Registered: 07/01/13
Posts: 381
Loc: Ottumwa, Iowa
If it fouled one while running you have an issue. Was the plug that fouled while running wet with fuel or oil?
_________________________
2013 Chevy Traverse lt 3.6l direct inection
2011 Chevy Silverado lt 1500 z71 crew5.3l
1983 Chevy K5 350
2007 Honda Rincon
1991 John Deere 318

Top
#3142515 - 10/02/13 12:43 PM Re: One spark plug carbon fouled?? [Re: callbay]
callbay Offline


Registered: 05/29/05
Posts: 610
Loc: Ozark Mountains
The spark plug that was fouled was dry.

Top
#3142877 - 10/02/13 06:42 PM Re: One spark plug carbon fouled?? [Re: callbay]
jhellwig Offline


Registered: 07/01/13
Posts: 381
Loc: Ottumwa, Iowa
I would look at a coil issue or plug wire then.
_________________________
2013 Chevy Traverse lt 3.6l direct inection
2011 Chevy Silverado lt 1500 z71 crew5.3l
1983 Chevy K5 350
2007 Honda Rincon
1991 John Deere 318

Top
#3143087 - 10/02/13 08:27 PM Re: One spark plug carbon fouled?? [Re: callbay]
JR Offline


Registered: 08/08/04
Posts: 923
Loc: Michigan born but my heart bel...
If one was clean on fould it is ignition. problem . air and fuel are good since. one plug is clean. check spark. i know the inline style ignition. tester increase the ignition. out put at the plug. i think the coil for that cylinder is weak not dead weak. if it was dead it would miss on the fresh plug. it is weak causing incomplete. combustion. hint the fould plug. that or

ken.

Top