2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 185Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 185

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TIMING, SYNCHRONIZING,ADJUSTING
NOTE: It is not important that the vacuum be at any specific settingMaximum Vacuum Difference Between Cylinders cm Hg (0.8 inHg)

NOTE: Cylinder #2 is

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