2006 SD Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 58Get this manual
MAINTENANCE VALVE CLEARANCE IMPORTANT: Rotate the crankshaft in the normal running direction only (clockwise) to prevent water pump impeller damagePUNCH mark TOC cylinder number No.1 cylinder No.2 cylinder Use feeler gauge to measure clearance between valve stem end and valve adjusting screw on rocker arm004797 004795
Valve clearance: (cold engine) IN: 0.007 to 0.009 in(0.18 to 0.22 mm) EX: 0.007 to 0.009 in(0.18 to 0.22 mm) If measurement is out of specification, adjust valve clearance