1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Repair Manual, P/N 507266, Page 48Get this manual

1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Repair Manual, P/N 507266, Page 48

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Maximum Spark Advance Adjustment
4 Stop the engine to prevent contact with rotating partsLoosen cam roller screwRotate cam roller nut to achieve specified timingTighten screw and verify timing f