Recent Topics
Syn or Dino for New Snowblower
by chefwong
11/24/14 04:24 PM
Meguin Power Synt 10W40
by DRISSI
11/24/14 03:48 PM
Do not put chemicals or lube on ThermoQuiet Pads?
by Bill_G
11/24/14 03:30 PM
Bobcat hydraulic pump
by Donald
11/24/14 02:02 PM
Viscosity Modifiers Interesting article.
by Koz1
11/24/14 01:54 PM
Bitog Wall of ... Thank You
by pandus13
11/24/14 01:37 PM
High compression ratio: is higher octane better?
by wemay
11/24/14 01:36 PM
Car Rebuilding
by Eddie
11/24/14 01:04 PM
98 Civic - torque converter lockup?
by wing0
11/24/14 01:02 PM
16MP camera being used in 8MP mode
by Vikas
11/24/14 10:50 AM
Solar Battery Chargers
by Tdbo
11/24/14 10:24 AM
Craftsman Snowblower 247.88955
by Droopy
11/24/14 09:45 AM
Newest Members
DRISSI, kinder, SamBruin7, splatt, Lars65inc
51985 Registered Users
Who's Online
77 registered (asand1, 147_Grain, barkingspider, Atesz792, Benzadmiral, 10 invisible), 1854 Guests and 162 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51985 Members
66 Forums
222556 Topics
3522749 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: 1047
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: 3843
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: 1417
Loc: South Florida
Worn rings on one cylinder?
_________________________
10 Acura TSX 2.4L Havoline Syn 5W20 Fram Ultra
09 Chrysler Town & Country 4.0L Castrol GTX 10W30
06 GMC Sierra 4.8L QSGB 5W30 Delco PF46

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


Registered: 10/09/11
Posts: 3440
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: 924
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