Mercury Mariner Outboard 40/50/55/60 2-stroke Service Manual, Page 271Get this manual

Mercury Mariner Outboard 40/50/55/60 2-stroke Service Manual, Page 271

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1 Unscrew plug from manifold and remove spring and poppet assembly Suction Seat Removal

Pilot Check Valve Assembly Removal
1 Unscrew both plugs2 Remove both springs and poppets