Yamaha Fuel Management Gauge installation

[jimblocher@earthlink.net]

I have a 1999 150hp VMAX efi OX-66 motor and I want to replace my Yamaha analog speedometer with a Digital Multifunction Speedometer and a Yamaha Fuel Management Guage in order to get better gas economy. I bought these instruments on eBay and they did not come with installation instructions. I have an existing fuel gauge that I want to replace with the Yamaha multifunction speedometer. How do I go about finding the correct wiring diagram or schematic diagram for installing these gauges correctly? I have the Yamaha repair manual for this engine, but it gives no detail on this kind of installation.<br />Thanks for any advice,<br />Wild Owl

 

[bigbrownbuku]

Re: Yamaha Fuel Management Gauge installation

the wire colours off the back of the guage correspond to the same wires coming from the rear of the control box. the white wire is the fuel guage wire. install the fuel flow meter level with preferably straight brass hose barbs, its also not meant to be the highest point of the fuel system.

 

[rodbolt]

Re: Yamaha Fuel Management Gauge installation

best go back to ebay and buy the rigging guide as well