2006 SD Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 62Get this manual
MAINTENANCE IDLE SPEED
IDLE SPEED
Check throttle link mechanism and carburetor throttle valve for smooth operationConnect shop tachometer to the engine
IGNITION TIMING
IMPORTANT: Before checking ignition timing, make sure idle speed is adjusted within specificationStart and warm the engineConnect shop tachometer and timing light to the engineCheck the ignition timing while operating the engine at 1000 RPMIgnition timing: ATDC 1000 RPM