2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 131Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 131

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IGNITION

Installation
1 Install ECMTighten screws to specified torque2 Connect ECM harness connector3 Connect Battery4 Install intake silencerRefer to Intake Silencer InstallationEC