1996 Johnson/Evinrude Outboards 8 thru 15 Four-Stroke Service Manual, Page 43Get this manual
Synchronization and Linkage Adjustments Models
INote You
must perform this step-by-step procedure exactly as written to ensure consistent engine idling and smooth operation throughout the RPM range
Idle Speed 1The boat must be in the water, under normal operating conditions, with the correct propeller installedThe boat's movement must be unrestrainedThe boat must not be tied to dock or trailer
INote The idle mixture in the carburetor is controlled by factory
adjustment to meet current emission standardsThe adjustment should only be disturbed for cleaning or rebuilding purposesIf the adjustment has been disturbed, refer to Carburetor Adjustment, Section 22Start the engine and allow it to reach normal operating temperature
3Reduce engine speedAdjust the idle speed adjusting knob counterclockwise to the full SLOW position