2003 ST 4 Stroke 9.9/15HP Johnson outboards Service Manual, Page 118Get this manual
POWER UNIT CYLINDER HEADVALVECAMSHAFT
CYLINDER HEADNALVECAMSHAFT
Removal
Before removing cylinder headRemove the power unit (See page 6-8) Remove: Bolt (Qty8) Head Head gasket
Hexagon wrench set
Installation
Installation is reverse order of removal with special attention to the following steps
IACAUTION I
Do not re-use gasket removedBe sure to use new gasketInstall: Cylinder head bolt (Qty8)