GHP™ 10 Tachometer ReferenceThis document contains common tachometer wiring connections on a variety of engines. This document is for reference only, and Garmin is notresponsible for its contents or for the consequences of following the suggestions included below. Engine tachometer connections are subject tochange at any time and Garmin is not responsible for updating any of the information or suggestions included below. Use the information andsuggestions included in this document at your own risk..For the most reliable tachometer connection information available you must consult your engine manufacturer before wiring theGHP 10 to the tachometer.Gasoline Outboard EnginesEngine Manufacturer Tachometer (+) Tachometer (-) NotesEnvinrude Gray Black NMEA 2000*Honda Gray BlackMercury Gray BlackMercury Verado N/A N/A Use the J-Box adapters provided in the GHP 10 Verado adapter kit to connect to theTachometer. Follow the instructions provided in the adapter kit.Suzuki Yellow BlackYamaha Green Black NMEA 2000*Certain Yamaha motors requre a Command Link Converter (Yamaha part numberMAR-6X6DA-C0-00) to transmit tachometer information to the GHP 10. Contact yourYamaha dealer for more information.••Gasoline Inboard EnginesEngine Manufacturer Tachometer (+) Tachometer (-) NotesMercruiser Gray BlackVolvo N/A N/A To access the tachometer information from the proprietary Volvo BUS, you must use aVolvo Canbus to NMEA 2000 converter (Volvo part number 3889758).Crusader Engines Gray BlackDiesel EnginesEngine Manufacturer Tachometer (+) Tachometer (-) NotesCaterpillar N/A N/A C15 and most other engines, fly wheel tooth counter (part#1895746)Maretron part number MCF-2M-D12 CAT••Cummins N/A N/A For QS11 and most other engines use a fly wheel tooth counter (part#3078155)For QSB, QSC, QSL, QSM motors, use Maretron part number J2K100**••Man N/A N/A Maretron part number J2K100**Volvo N/A N/A Volvo Canbus to NMEA 2000 (Volvo part number 3889758)Yanmar Yellow wire orOrange/Graywire at thealternatorEngine ground NMEA 2000**If the motor is NMEA 2000-compatible, there will be no tachometer wires. Tachometer information will be received through the NMEA 2000 BUS** Maretron J1939 Canbus to NMEA 2000 converterNote: Part #J2k100 may not work in some applications due to the fact that most engine manufactures will send out proprietary Canbus unless J1939 is speci-fied by OEM boat manufacturer.