1993 Johnson Evinrude "ET" 60 degrees LV Service Manual, P/N 508286, Page 38Get this manual
Maximum Spark Advance
[!] 1Verify that the spark lever screw is still loosef212Manually advance the spark cam to wide-open-throttle position using the spark leverf313With the OMClgnition Analyzer still connected and the timer base detent screw still loose, rotate the crankshaft in clockwise direction until the timing pointer aligns with maximum spark advance listed in chart
Maximum Spark Advance
All Models
PCE0026
f414To adjust maximum spark advance, hold the timing wheel in positionMove the outside detent tab rearward on the detent plate until the analyzer "CYL" light goes off1sl5Verify location of the inside detent tabTighten the timer base detent screw6Move spark lever rearward7Disconnect the OMC Ignition Analyzer from the timing sensorConnect the timing sensor plug to the timing sensor and install the rectifierregulator cover