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SignUp Now!I installed new NGK UR-5 plugs @ .032 gap, changed oil, started up and black smoke coming from exhaust. The plugs I pulled were fouled severely. AFR shows 14.5. Fumes burn your eyes. It's around 70 degrees here in TN today. I'm beginning to think there is something wrong with the wide-band (PLX). What symptoms should I look for or other ideas. Attached file is a cold start log....
I installed new NGK UR-5 plugs @ .032 gap, changed oil, started up and black smoke coming from exhaust. The plugs I pulled were fouled severely. AFR shows 14.5. Fumes burn your eyes. It's around 70 degrees here in TN today. I'm beginning to think there is something wrong with the wide-band (PLX). What symptoms should I look for or other ideas. Attached file is a cold start log....