1988 Johnson Evinrude CC 60 thru 75 outboards Service Manual, Page 61Get this manual
Cam Follower Pickup Adjustment f8l 1Connect throttle shaft amplifier to the top carburetor throttle plate, as shown Igl
2While advancing the throttle cam, the short embossed mark on the cam should align with the center of the cam follower as tip of the amplifier begins to move
With the follower screw loose, align the embossed mark on the throttle cam with center of the cam followerWith the throttle valves in the closed position, hold the cam follower against the cam embossed mark and tighten the cam follower screw
Cam Follower Pickup Timing 1Connect timing light to No1 cylinder spark plug high tension lead2Advance the throttle by moving the throttle control lever until tip of the amplifier begins to moveRemove the amplifier but do not move the throttle control lever3Start the engine and observe spark advance with timing lightThe proper spark advance is listed below