1977 Evinrude 55 HP Outboards OMC Service Repair Manual P/N 5307, Page 17Get this manual
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TROUBLE TROUBLE
4ENGINE MISFIRES (Providing Fue1 System and Carburetor )
SPARK pi.uGSSee Section Cover inner terminal damaged (termina1 point out of 1ead) Fau1ty 1eads crossed leads