1993 Johnson Evinrude "ET" 60 thru 70 Service Manual, P/N 508284, Page 41Get this manual
Throttle Plate Synchronization
f31 1Loosen the cam follower screw and push the cam follower away from throttle camThe follower MUST NOT touch the throttle cam during this procedure2Loosen upper and lower carburetor linkage screws 3Verify that all throttle plates are closed [";1 4Apply light upward pressure to the tabs of the adjusting links and tighten first the lower then the upper carburetor linkage screwsCam Follower Pickup
1Snap the throttle link coupler shell off the throttle cam ballrJl 2While holding the cam follower against the throttle cam, move the throttle cam until embossed mark on the cam aligns with center of the cam followerTighten the cam follower screw1al 3Connect throttle shaft amplifier to the top carburetor shaft plate