1993 Johnson Evinrude "ET" 9.9 thru 30 Service Manual, P/N 508282, Page 48Get this manual
Synchronization and Linkage Adjustments 25 thru 30 It is important that this step-by-step procedure be followed in sequence and be performed exactly as written to ensure consistent engine idling and smooth operation throughout the RPM rangeIf equipped, remove both remote control cables from the engine before performing these adjustmentsCam Follower Pickup Point _
1Tiller modelsturn the idle adjusting knob counterclockwise to full SLOW position2Remote modelsback out throttle arm stop screw until throttle arm touches screw's mounting bracket
f31 3Connect throttle shaft amplifierlike the one shown, to the carburetor throttle shaftf41 4Advance the throttle by moving the throttle control lever until tip of the amplifier begins to moveAt this point, the cam follower should contact the cam between the two marks '5l 5To adjust, loosen the screw retaining the adjustment lever to the throttle shaftSlide the adjustment lever up or down to make the adjustmentThrottle Control Rod