2006 SD Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 149Get this manual
POWERHEAD CYLINDER HEAD ASSEMBLY
Assembly
Valve Guide Replacement IMPORTANT: Be careful not to damage cylinder
head when replacing valve guideDrive valve guide out toward valve spring side
Drive valve guide in from valve spring side to the specified heightMeasure valve guide protrusion: Protrusion: 0.39 0.02 in (10.0 0.5 mm)
1Valve guide protrusion