Can anyone tell me how to switch the wires around to add a temp. gauge to a 97 Formula 583??? :D

Get the temp gauge kit from 'doo. All the instructions wiring & connectors will be included.

With a 583 you can run the light and guage if you get the kit. A new harness comes with it. The green wire in the harness is for the guage. If you only want one move the purple wire in the brown connector so it connects with the green.

BTW you need to change the sender also.

If you are using a skidoo kit for it, there should be instructions. I'll try to find my shop manual and tell you for sure. I did it on a 97 mxz 670 last year. The wiring order in the doo kit was wrong, because all the actual colours on the gauge were different.