2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 73Get this manual
MAINTENANCE SYNCHRONIZATION AND LINKAGE ADJUSTMENTS9.915
Wide Open Throttle Adjustment
Adjust wide open throttle (WOT) stop screw until the tip protrudes 0.25 in(8 mm) through the throttle lever
Maximum Spark Advance
No maximum spark advance adjustment is necessaryCorrect ignition primary lead position is all that is required to maintain proper ignition timingOrangeblue lead must connect to top ignition coil
Idle Speed
The boat must be in the water, under normal operating conditions, with correct propeller installedThe boat's movement must be unrestrainedThe boat must not be tied to dock or trailerBefore proceeding with this procedure, be sure the low speed needle is properly adjustedRefer to CARBURETOR MIXTURE ADJUSTMENT on p.161 Turn the idle speed knob fully counterclockwise to the full SLOW position (tiller models)