2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 189Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 189

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TIMING, SYNCHRONIZING,ADJUSTING
aSparkplug wire #1 Digital tachometer 91-854009A1 Engine Idle Speed 650750 rpm

90-888465 JUNE 2002

Page 2C-19

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