2006 Johnson SD 30 HP 4 Stroke Outboards Service Manual, PN 5006592, Page 149Get this manual
POWERHEAD CYLINDER HEAD Use Valve Lifter, PIN 346186, and Attachment, PIN 5000899, to compress the valve springsApply engine oil to the surface of each camshaft lobe and journalInstall the camshaft from timing sprocket side of the cylinder head
1Camshaft
Use tweezers to install the valve cotters while the valve springs are compressed Make sure that the valve cotters are properly seated in the valve stem groove