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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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#8 |
RCC Addict
Join Date: Mar 2008
Location: Honolulu, Hawaii USA
Posts: 1,813
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Are these the original spark plugs you used on break-in?
If so, then a lot of the crap is from the blow-by from the engine breaking in. I recommend swapping to a new set of plugs after the initial break-in period if the break-in plugs are no good. -Ted |
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