1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 155Get this manual

CYLINDER HEAD
IntakeExhaust Valves
9 10 10 14 13 11 10 12 13 10 12 11 12 13

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