1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Manual, Page 46Get this manual
Synchronization and Linkage Adjustments20
INote 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 range
INote If equipped,
remove both remote control cables from the engine before performing these adjustments
Cam Follower Pickup Point
1Tiller ModelsTurn the idle adjusting knob counterclockwise to the full SLOW position