2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 501Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 501

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POWER TRIM
RELIEF VALVES
1 Inspect the up-relief and down-relief valve components for contaminationClean if necessary

aValve lock screw b- Up-relief springValve support pin d-