2007 Johnson 2 HP 4-Stroke Service Manual, Page 47Get this manual
MAINTENANCE VALVE CLEARANCE Use feeler gauge to measure clearance between valve stem end and valve adjusting screw on rocker armvalve clearance
Adjustment
Loosen the valve adjusting lock nut while holding the valve adjusting screwTurn valve adjusting screw using to bring valve clearance within specification1
Valve clearance: (cold engine) IN: 0.005 to 0.007 in(0.13 to 0.17 mm) EX: 0.005 to 0.007 in(0.13 to 0.17 mm) If measurement is out of specification, adjust valve clearance1Lock nut 2Adjusting screw 005899