1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Manual, Page 49Get this manual
Electric Start ModelsTiming mark Q) must align with appropriate mark on the ELEC CD flywheel grid
Rope Start ModelsTiming mark must align with appropriate mark on the CD flywheel grid
Maximum Spark Advance 25, 30 30 BTDC
PCE0026
3To adjust, stop the engine to prevent contact with rotating partsLoosen the timing adjustment screw nut (DTurn the adjustment screw in or out, as necessary, to correct the timing One turn clockwise retards timing about 1; one turn counterclockwise advances timing about 14Tighten the nut and recheck the timing adjustmentIdle Speed 1The boat 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 trailer