Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 130Get this manual

INTAKEEXHAUST VALVES REFNOQTY1 EXHAUST VALVE INTAKE VALVE TORQUE DESCRIPTION

SEAT Valve Spring SEAL-Valve Stem
VALV SPRfNG-Outer

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