2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 131Get this manual
POWERHEAD DISASSEMBLYHP Remove thrust washer from cylinder blockRemove and replace dowel pins,if necessaryInspect crankshaft sleeve and replace, if necessaryTo remove, use Slide Hammer, PIN 432128, and Small Puller Jaws, PIN 432131
1Dowel pins
Remove block seal, if necessary, using Slide Hammer, PIN 432128, and Large Jaw Puller, PIN 432129Discard seal
Cylinder Head
Mark rocker arms before removal from cylinder head