fuel gauge replacement

[groper]

I am trying to replace my fuel gauge on my Key West 186 CC. The new gauge is the top picture and the old is the lower. The wires are diffrent. The new gauage is made by Yamaha. Thanks for any help.

new gauge

old gauge

 

[Silvertip]

Re: fuel gauge replacement

The only thing that's different is the wire color. Electricity doesn't care about that. Remove the wires from the old gauge (one at a time) and put it on the same terminal on the new gauge. The new guage will be marked + (as for +12V when the key is on). - (as in ground) and S (as in sender) which is the line from the fuel tank sending unit. The other two wires are the light wire (hot and ground). Match the function -- not the wire colors.

 

[jhebert]

Re: fuel gauge replacement

On the new gauge the wire color coding appears to be as follows:

BLACK = battery negative
YELLOW = battery positive via ignition switch
BLUE = gauge illumination
WHITE = gauge sender

If there are any legends marked on the gauge, see if they correspond with those designations.

Compare at:
http://continuouswave.com/whaler/reference/wireColorCode.html#Yam

 

[groper]

Re: fuel gauge replacement

Thanks for your responses. I'll give it a try today.