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different spark plugs

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Old

Apr 27, 2007 | 01:22 AM

#1

bentspoke

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different spark plugs

i bought a 1979 fatbob a month ago and the guy i bought it from told me the former owner said he ran a RN14YC in the front and a RJ18YC plug in the rear for some kind of performance reason. anyone ever heard of this? or what the deal might be?
thanks

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Old

Apr 27, 2007 | 10:20 AM

#2

soup48

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RE: different spark plugs

The only difference is the front plug is colder running than the rear. These type of plugs fit a Chrysler product, in the automotive area.

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Old

Apr 27, 2007 | 10:24 AM

#3

voyager1

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RE: different spark plugs

imo............stick withthe oem plugs.

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