Fuel Management Gage

[<Loafin98>]

My Yamaha Fuel Mamagement Gage 6Y5 W0088-64B has only 4 switches on the inside. Which switches do I need to set so I can use a GPS interface from my Raymarine GPS. What does the four swithces control? Thanks for the help.

[<boats.net>]

There are 6 switchs , The first three are for calibration set #1 and #2 in up position set #3 down.
#4 up position is for Liters per hour, Down is for gallons per hour.
If using a speedometer then set #5 down and #6 up.
If using a GPS set #5 up and #6 down

[NoFearEyes]

I'd appreciate diagrams, details, connections for GPS to Fuel Management Guage.

[Irish Jig]

Mine also only has 4 switches. If anyone out there can help it would be greatly appreciated.