Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 221Get this manual

CYLINDER HEAD
2Fasten cylinder head with bolts shown Torque bolts in sequence and in two steps
aScrews (6)-M6x25Screws (4)-M6x25

Cylinder Head Bolt Torque

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