Fouled plug, but dry

queen of spodes
Edited Date/Time 1/27/2012 1:13pm
While riding hatfield yesterday my bike sputtered and acted like it had a fouled plug. My tour guide & I took out the spark plug to replace with a new one I had. The old plug was tan and dry as a bone. I had a half tank of gas, plenty of coolant (it lost maybe a half inch from when I started). My bike (a kx250) ran great both days I was there, other than this.

So can plugs go bad without being wet and oily?
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flarider
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flarider 5/15/2008 6:00am
5/15/2008 6:00am
Yes, plugs can "just go bad"
CR250Rider
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CR250Rider 5/15/2008 6:04am
5/15/2008 6:04am
happened to me. (rare)
R-acer
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R-acer 5/15/2008 6:57am
5/15/2008 6:57am
My son's 85 started sounding like a machine gun at high rpms... and it was a pretty new plug... lookd perfect, but was bad internally I guess. new plug solved the problem
kopfjaeger
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kopfjaeger 5/15/2008 7:32am
5/15/2008 7:32am
Check your vent hoses too

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mxer993
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mxer993 5/15/2008 1:48pm
5/15/2008 1:48pm
We put a new plug in my son's bike. He rode like three times with the new plug. He plug blew out completely and locked the bike up.
EndoEddy1
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EndoEddy1 5/15/2008 2:41pm
5/15/2008 2:41pm
yer ignition box is bad so it is maken dry heat foulyer plug when accelarating over half throtle
MX Dad #27 5/15/2008 3:02pm
5/15/2008 3:02pm
EndoEddy1 wrote:
yer ignition box is bad so it is maken dry heat foulyer plug when accelarating over half throtle
What language is that?
CR250Rider
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CR250Rider 5/15/2008 3:12pm
5/15/2008 3:12pm
n00bs!
suzukirm12594 5/15/2008 3:14pm
5/15/2008 3:14pm
Well has your gas and oil been sitting unused for a month or more...Mabye a better question is are you putting any oil in that thing, if so are you putting enough???
queen of spodes 5/15/2008 5:54pm
5/15/2008 5:54pm
suzukirm12594 wrote:
Well has your gas and oil been sitting unused for a month or more...Mabye a better question is are you putting any oil in that thing...
Well has your gas and oil been sitting unused for a month or more...Mabye a better question is are you putting any oil in that thing, if so are you putting enough???
I bought 5 gallons of race gas last week and mixed with Super-Techniplate at 44:1. The plug was medium tan and according to the mechanic that replaced my fork seals two weeks ago it is jetted perfectly. I'm not terribly worried about it - after swapping plugs it ran fine again. Smile
Cygnus
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Cygnus 5/15/2008 6:04pm
5/15/2008 6:04pm
This place is turning into a mix of RonRon and Thumpertalk . WTF?
2-smoke
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2-smoke 5/15/2008 7:45pm
5/15/2008 7:45pm
R-acer wrote:
My son's 85 started sounding like a machine gun at high rpms... and it was a pretty new plug... lookd perfect, but was bad internally I...
My son's 85 started sounding like a machine gun at high rpms... and it was a pretty new plug... lookd perfect, but was bad internally I guess. new plug solved the problem
That's because you were probably running a non-resistor plug?
davis224
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davis224 5/15/2008 9:06pm
5/15/2008 9:06pm
An easy way to check if your plug is fouled without even taking it out the bike is take the cap off, (you'll need a meter) put one lead on the top of the plug, and the other to ground. O.L the plug is not fouled, 10 million ohms or less it is likely fouled, 1 million ohms or less that fucker's gone.
jtomasik
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jtomasik 5/15/2008 9:17pm
5/15/2008 9:17pm
EndoEddy1 wrote:
yer ignition box is bad so it is maken dry heat foulyer plug when accelarating over half throtle
Oh yeah. Only 3 posts and I like this guy already.
wildbill
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wildbill 5/15/2008 11:34pm
5/15/2008 11:34pm
my bosses kid had a KX 100 that kept fouling the $20 extravagant plug that was recommended. I looked like a hero when I threw an old BS8E that I had in that sucker and it ran for months.
teggers
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teggers 5/15/2008 11:58pm
5/15/2008 11:58pm Edited Date/Time 5/16/2008 12:00am
EndoEddy1 wrote:
yer ignition box is bad so it is maken dry heat foulyer plug when accelarating over half throtle
jtomasik wrote:
Oh yeah. Only 3 posts and I like this guy already.
Sounds like some great lyrics to a new song. I'm repeating the chorus right now in my brain....shit...gonne be up all night now........and ......This place is turning into a mix of RonRon and Thumpertalk . WTF?........TRUE!
flarider
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flarider 5/16/2008 3:53am
5/16/2008 3:53am
teggers wrote:
Sounds like some great lyrics to a new song. I'm repeating the chorus right now in my brain....shit...gonne be up all night now........and ......This place is...
Sounds like some great lyrics to a new song. I'm repeating the chorus right now in my brain....shit...gonne be up all night now........and ......This place is turning into a mix of RonRon and Thumpertalk . WTF?........TRUE!
and no one is doing anything about it

Reap what you sow

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