Nitro Boat Tachometer Wiring Diagram. Please understand that proper wiring must be maintained throughout your vehicle. The tach problem is probably a loose or dirty connection.
Wiring diagram for boat tachometer readingrat throughout boat gauge wiring diagram for tachometer image size 1200 x 1655 px and to view image details please click the image. At the top left of the diagram we see the cylinder selector switch. Attach the wire from pin 3 to a ground negative source.
Bill barham well known member joined aug 27 2003 messages 6444 reaction score 0.
Bill barham well known member joined aug 27 2003 messages 6444 reaction score 0. Wiring an outboard motor tach and voltmeter may 1 2011. For 1990 90hp engine. Hi all this is my first posting and am amased at the vast amount af solid info on this site.