2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 123Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 123

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IGNITION
aPinTiming belt 2 Rotate the drive sprocket clockwise turns and check the alignment of the timing marks3 Install flywheelRefer to Flywheel Installation
WARNING
Do NOT rotate