Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 135Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 135

WIRING DIAGRAMS
Synchronizer wiring can be accomplished two different ways as an option to the userWiring DiagramGauge needle to point toward slow running engine

a TachometerStarboard Engine Synchronizer GaugeTachometerPort EngineSynchronizer Box

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