2004 SR Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 34Get this manual
PERIODIC MAINTENANCE VALVE CLEARANCE
VALVE CLEARANCE
INSPECT INITIALLY AFTER 10 HOURS (1 MONTH) AND EVERY 200 HOURS (12 MONTHS) THEREAFTER
1Remove: Side covers (See page 7-2) Recoil starter (See page 5-3) Spark plugs Breather hose Cylinder head cover (See page 6-3)