2003 ST 4 Stroke 9.9/15HP Johnson outboards Service Manual, Page 131Get this manual
POWER UNIT CYLINDERCRANKCASEPISTON ASSEMBLY
CYLINDERCRANKCASE PISTON ASSEMBLY
Disassembly
Before disassembling the cylinder: Remove the power unit(See page 6-8) Remove the cylinder head assembly(See page 6-13) RemoveNut CD Lock washer (2) Timing belt upper guide Pulley Key Timing belt lower guide
5034236 Crankshaft holder