1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Manual, P/N 507262, Page 48Get this manual
Synchronization and Linkage Adjustments 9.9 (211cc) Remote Control Models
INote You
must perform this step-by-step procedure exactly as written to ensure consistent engine idling and smooth operation throughout the RPM rangeIdle Speed 1The boat must be in water, under normal operating conditions, with 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 standardsAdjustment should only be disturbed for cleaning or rebuildingIf the adjustment has been disturbed, refer to Carburetor Adjustment, Section 2
2Start engine and run to normal operating temperature