2003 ST 4 Stroke 9.9/15HP Johnson outboards Service Manual, Page 121Get this manual

POWER UNIT INSPECTIONSERVICING Check: Valve area CrackReplace

Check: Oil seal Valve stem seal Cut, nick, damageReplace

I ACAUTION I
Do not re-use the seal removed
Cam Height
Measure: Cam height (8)

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives