1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 177Get this manual

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CYLINDER HEAD
a-Keepers (8) b-Valve Spring Seats-Upper (4) c-Valve Springs (4) d-Valves-Intake (2) e-Valves-Exhaust (2) f-Valve Spring Seats-Lower (4) g-Valve Seals (4) (New)

91-809

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