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Changed my spark splugs ,what does this mean

Posted: Wed Mar 02, 2005 6:51 pm
by 4sum4
Not sure what to look at when looking at an old spark plug for good things or bad things,so what does this mean
the plugs have done about 25-30000k`s

Posted: Wed Mar 02, 2005 7:04 pm
by adam.s
Can't really tell from that pic, but they don't look too bad.

Have a read of this site: http://www.nightrider.com/biketech/spkplghnbook.htm

Posted: Wed Mar 02, 2005 7:10 pm
by elgordomuygrande
close up needed :lol:

even electrode wear with a brownish color, no stuff sticking to it . that seems allright..

cheers
ron

Posted: Wed Mar 02, 2005 7:40 pm
by TUFF MAV
What fuel are you using & what car ? They look pretty good for the Km's but.

Kyle

Posted: Thu Mar 03, 2005 1:51 pm
by Mudzuki
Looks ok from that pic

Posted: Thu Mar 03, 2005 3:53 pm
by nismo_simo
Grey can mean too lean or actually they are just new.

If there is no physical damage to the points then they are fine.