1972 Evinrude StarFlire 125 HP Outboards Service Repair Manual, PN 4822, Page 16Get this manual

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2-9 TROUBLE CHECK CHART (CONT) TROUBLE 4ENGINE MISFIRES (Assuming Fuel System and Carburetor OK) (Cont) POSSIBLE CAUSE Faulty leads Loose spark plugs (low torque) Defective spark plugs (cracked insula

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