Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 132Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 132

WIRING DIAGRAMS
aSI Gauge Wiring Diagrams
Tachometer Wiring Diagram
Tachometer dial on back side of case must be set to position number WIRING DIAGRAM Use this wi ring diagram when using separate light switch for instrument lighting

- PURPLE or WHITEConnect to Positive (+) VallLight Switch WireVoltPosition Light Bulb to the Switched PositionBLACKConnect to Negative (-) GroundGRAY or BROWN Wire

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