2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 76Get this manual
MAINTENANCE SYNCHRONIZATION AND LINKAGE ADJUSTMENTS2530 ROPE START MODELS Timing mark must align with appropriate timing mark on CD flywheel grid
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.161Turn the idle speed knob fully counterclockwise to the full SLOW position (tiller models)
1Timing mark 2Screw, timing adjustment
ELECTRIC START MODELS Timing mark must align with appropriate timing mark on ELEC CD flywheel gridStart the engine and allow it to reach normal operating temperatureWhen speed is reduced, engine must idle at 675 25 RPM in FORWARD gear