spark plug good or bad???

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Jul 10, 2003 | 03:58 PM

wanttorace

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Joined: Oct 2002

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spark plug good or bad???

what does it mean when a spark plug has black deposit on the tip of it?

Jul 10, 2003 | 04:00 PM

mr.beeks

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Joined: Jan 2003

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From: some where in a locked cage

Re: spark plug good or bad??? (jjd493925)

if its powedery black (lean)
gooey black (burning oil)

Jul 10, 2003 | 04:10 PM

wanttorace

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Re: spark plug good or bad??? (francisco flores)

its a powder i thought that if it was like white ish it was lean

Jul 10, 2003 | 04:14 PM

Behan

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Joined: Apr 2003

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From: Windsor, PA

Re: spark plug good or bad??? (jjd493925)

black=rich
brownish-grayish=good
white= lean

Jul 10, 2003 | 04:20 PM

wanttorace

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Re: spark plug good or bad??? (93preludevtec)

becuase i just put a gsr head on a b20 block and it runs like **** and the plugs are black as **** so maybe its way to much fuel ?

Jul 10, 2003 | 04:29 PM

orange.honda

Joined: Feb 2003

Posts: 367

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From: hemet, ca

Re: spark plug good or bad??? (93preludevtec)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93preludevtec »</TD></TR><TR><TD CLASS="quote">black=rich
brownish-grayish=good
white= lean</TD></TR></TABLE>

i agree.
and it could be a lot of fuel or ignition timing might be off. but it could be lots of other stuff too.