1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 51Get this manual
Maximum Spark Advance Run the engine with the proper test wheelDo not run the engine with propeller or flushing adapter for the adjustment1Connect timing light to the No.1 cylinder2Start and run the engine to minimum of 5000 RPM in FORWARD gear 3The engine timing pointer must align with correct degree mark
on the flywheel grid
Maximum Spark Advance 65WMLK, WMYK
PCE0026
adjustor out as necessary to correct the timingOne turn clockwise retards timing about and one turn counterclockwise advances timing about 1
i ment screw nutTurn the adjustment screw
4Stop the engineTo
loosen the
5Tighten the nut and repeat Steps thru 4Idle Speed Adjustment 1The boat and engine must be in the water under normal operating conditions with the correct propeller installedThe boat's movement must be unrestrainedThe boat must not be tied to dock or trailer2Start the engine and allow it to reach normal operating temperature