Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 126Get this manual

CYLINDER HEAD REFDESCRIPTION NOOTY1 CYLINDER HEAD (ELECTRIC) CYLINDER HEAD (MANUAL) CYLINDER HEAD GUIDE CIRCLIP ANODE GROMMET COVER SCR EW (M6 20) BOLT 70 57 6.4 TOROUE

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-1- GASKET OIL SEAL -1- RING-COVER 1

DECAL-Servicing Referral DECAL-Engine OilNalve Clearance

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