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Old 05-11-2010, 10:52 AM
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WMarshy WMarshy is offline
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Join Date: Apr 2009
Location: Mexico NY
Posts: 2,402
I seem to post this vid a lot... Its a good one.
The color of the insulator does not indicate your mixture, only the "base ring" around the insulator at the very end of the threads. All look like you are getting plenty of fuel. And you can read the heat range on the "tang" or ground to the electrode. NGK has some good information about reading plugs also. Its worth taking a look.
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'79 XS11 F
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'79 XS11 SF
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'84 Chevy K-10 "Big Blue"
GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

"What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

Last edited by WMarshy; 05-11-2010 at 11:01 AM.
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