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#4728902 - 04/16/18 01:52 PM Generator not starting... check your plugs! (pics)
webfors Offline


Registered: 06/06/06
Posts: 4845
Loc: Great White North.. eh
I've had a Champion 4kw generator patched into my panel via 6 circuit transfer switch for years. Ever since new the generator would take a while with the electric start to get going. This morning I was prepping for the ice storm happening and couldn't get the darn thing started.

Checked oil level, ok.
Checked fuel, ok.
Sprayed quick start into the carb, nope.
Changed the spark plug - vrooom

The darn things starts on first pull now. A huge difference. It feels brand new.

Reading some history on these Chinese made Champion generators, they apparently come with really cheap Chinese made plugs.

I replaced it with a NGK BR7ES and she starts easy and purrs like a kitten now.
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17 Cadillac ATS 2.0T, Bulk D1G2 5w30, UPF64R
17 Dodge GC, VWB 5w30, Fram DL11665
15 DL650, RT6 (CJ-4) 5w40, Suzuki 16510-07j00
Small engines; RT5 10w30

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#4728907 - 04/16/18 01:55 PM Re: Generator not starting... check your plugs! [Re: webfors]
mrsilv04 Offline


Registered: 12/08/06
Posts: 8156
Loc: Illinois
Torch brand plug, maybe?
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2004 Silverado - on its 3rd Jasper engine in less than one year.

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#4728914 - 04/16/18 01:58 PM Re: Generator not starting... check your plugs! [Re: webfors]
webfors Offline


Registered: 06/06/06
Posts: 4845
Loc: Great White North.. eh
_________________________
17 Cadillac ATS 2.0T, Bulk D1G2 5w30, UPF64R
17 Dodge GC, VWB 5w30, Fram DL11665
15 DL650, RT6 (CJ-4) 5w40, Suzuki 16510-07j00
Small engines; RT5 10w30

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#4728915 - 04/16/18 01:59 PM Re: Generator not starting... check your plugs! [Re: webfors]
PeterPolyol Offline


Registered: 03/06/16
Posts: 1179
Loc: toronto
Edit:
Gap doesnt appear ridiculous but that carbon buildup though.


Edited by PeterPolyol (04/16/18 02:00 PM)

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#4728918 - 04/16/18 02:00 PM Re: Generator not starting... check your plugs! [Re: mrsilv04]
webfors Offline


Registered: 06/06/06
Posts: 4845
Loc: Great White North.. eh
Originally Posted By: mrsilv04
Torch brand plug, maybe?


Not sure. Pics above. Thoughts?
_________________________
17 Cadillac ATS 2.0T, Bulk D1G2 5w30, UPF64R
17 Dodge GC, VWB 5w30, Fram DL11665
15 DL650, RT6 (CJ-4) 5w40, Suzuki 16510-07j00
Small engines; RT5 10w30

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#4728919 - 04/16/18 02:01 PM Re: Generator not starting... check your plugs! [Re: PeterPolyol]
webfors Offline


Registered: 06/06/06
Posts: 4845
Loc: Great White North.. eh
Originally Posted By: PeterPolyol
What was the gap like on the old one? Any buildup?


Pics above, gap was definitely wider than the new NGK I put in.

Thoughts on the buildup? I don't have much of a reference point for that.
_________________________
17 Cadillac ATS 2.0T, Bulk D1G2 5w30, UPF64R
17 Dodge GC, VWB 5w30, Fram DL11665
15 DL650, RT6 (CJ-4) 5w40, Suzuki 16510-07j00
Small engines; RT5 10w30

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#4728920 - 04/16/18 02:01 PM Re: Generator not starting... check your plugs! [Re: webfors]
Panzerman Offline


Registered: 12/16/06
Posts: 4175
Loc: Port Orange, Florida
This happened to me too last summer. Honda generator, NGK plug. Tried everything and put a new plug in and it fired off first pull. Weird,never had plugs go in four strokes before.
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2006 Dodge Ram 2500 Hemi 4x4
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#4728921 - 04/16/18 02:01 PM Re: Generator not starting... check your plugs! [Re: PeterPolyol]
webfors Offline


Registered: 06/06/06
Posts: 4845
Loc: Great White North.. eh
Originally Posted By: PeterPolyol
Edit:
Gap doesnt appear ridiculous but that carbon buildup though.


Some chunks of the carbon fell off before the picture too. Had to wipe it off my laptop grin
_________________________
17 Cadillac ATS 2.0T, Bulk D1G2 5w30, UPF64R
17 Dodge GC, VWB 5w30, Fram DL11665
15 DL650, RT6 (CJ-4) 5w40, Suzuki 16510-07j00
Small engines; RT5 10w30

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#4728922 - 04/16/18 02:02 PM Re: Generator not starting... check your plugs! [Re: Panzerman]
webfors Offline


Registered: 06/06/06
Posts: 4845
Loc: Great White North.. eh
Originally Posted By: Panzerman
This happened to me too last summer. Honda generator, NGK plug. Tried everything and put a new plug in and it fired off first pull. Weird,never had plugs go in four strokes before.


Me either. First time. The limited use they get... they should last a good long time.
_________________________
17 Cadillac ATS 2.0T, Bulk D1G2 5w30, UPF64R
17 Dodge GC, VWB 5w30, Fram DL11665
15 DL650, RT6 (CJ-4) 5w40, Suzuki 16510-07j00
Small engines; RT5 10w30

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#4728931 - 04/16/18 02:10 PM Re: Generator not starting... check your plugs! [Re: webfors]
PeterPolyol Offline


Registered: 03/06/16
Posts: 1179
Loc: toronto
Originally Posted By: webfors
Originally Posted By: PeterPolyol
Edit:
Gap doesnt appear ridiculous but that carbon buildup though.


Some chunks of the carbon fell off before the picture too. Had to wipe it off my laptop grin


Eek-barba-durkle oh yeah, that'll do it! Maybe the ol girl is running really rich

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#4728955 - 04/16/18 02:36 PM Re: Generator not starting... check your plugs! [Re: webfors]
Dave Sherman Offline


Registered: 01/03/06
Posts: 1044
Loc: Ohio
Agree on plugs making a difference in starting.

Strangely, my Powerhouse PH2100PRi generator has managed to ruin two NGK CR7HSA in fairly short order. They quickly got harder and harder to start before failing completely with no spark. One of them had cracked the center insulator and I could see a faint spark between it and the shell, but it would not run. For as bad as the Torch spark plugs are reputed to be, that's what got it started again after the NGKs died.
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2015 Honda Pilot EX AWD
1977 MG Midget Valvoline VR-1 20W-50 Bosch Filter

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#4728974 - 04/16/18 02:51 PM Re: Generator not starting... check your plugs! [Re: webfors]
webfors Offline


Registered: 06/06/06
Posts: 4845
Loc: Great White North.. eh
Can anyone tell what brand of plug is in the pictures above?
_________________________
17 Cadillac ATS 2.0T, Bulk D1G2 5w30, UPF64R
17 Dodge GC, VWB 5w30, Fram DL11665
15 DL650, RT6 (CJ-4) 5w40, Suzuki 16510-07j00
Small engines; RT5 10w30

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#4728981 - 04/16/18 02:56 PM Re: Generator not starting... check your plugs! [Re: mrsilv04]
Chris142 Offline


Registered: 06/05/03
Posts: 16538
Loc: Deplorable in apple valley, ca
Originally Posted By: mrsilv04
Torch brand plug, maybe?
Or a Bonan. Both are junk.
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#4729002 - 04/16/18 03:22 PM Re: Generator not starting... check your plugs! [Re: webfors]
boraticus Offline


Registered: 04/19/09
Posts: 2866
Loc: Canada
Plug looks sooty but not carboned enough to prevent it from functioning. Something else probably failed.

It's rare when a spark plug fails. However, occasionally they do. I think I've had a total of four plugs fail over five decades or so and I have a lot of engines.

Seems that it's becoming more of an issue with the influx of cheap Chinese plugs now available on the market.

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#4729006 - 04/16/18 03:31 PM Re: Generator not starting... check your plugs! [Re: webfors]
mk378 Offline


Registered: 09/27/15
Posts: 1333
Loc: USA
When you test the generator you should put a load on it and run for several minutes to burn the carbon off the plug.

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