1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 66Get this manual
2Advance the throttle by moving the throttle control lever until tip of the amplifier begins to moveRemove the amplifier but do not move the throttle lever INote advanced models, the idle roller adjustment screwmark on On some stop may be until center of aligns with first
camAfter timing is checked, return idle stop adjustment screw to original position3Start the engine and observe spark advance with timing lightThe proper spark advance is indicated in chart
Pickup Timing
lcl h- 4Stop the engine to prevent contact with rotating
partsTo adjust the pickup timing, loosen the jam nutRotate the top of the thumb wheel toward the crankcase to increase the pickup timing degrees and away from the crankcase to decrease the pickup timing degrees5Tighten jam nut and repeat steps thru 4Wide Open Throttle Stop Adjustment 1With the engine not running, advance the throttle control lever to the wide open position