Hello fellas I just added a 2002 grizzly 660 to the stable. I'm really excited to have it although I have a speedometer display issue. The display would light up and cycle through and look like it worked until I push the start button and it would immediately go blank but the green backlight and gear indicator still work. And after I went checking for loose connections and broken wires and such it won't even do the startup cycling thing. I would greatly appreciate any help.

 

Is the battery healthy . Jump cables from a good 12v source like your car to the ATV's battery cables and see if it still does it.