2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 138Get this manual
POWERHEAD DISASSEMBLYHP Use small two-jaw puller (commercially available) to remove pulley and belt guidePosition jaws under belt guide for removalRemove keyW!JJiIII""'"
Remove four screws retaining breather coverRemove cover and O-ring sealDiscard seal
Breather cover screws
Remove and replace dowel pins, if necessary
Remove two screws and lock washers retaining reed and reed stop to breather plateRemove reed, stop, and plate