Hi there I have a 96 - 580 ext deluxe, with battery efi. I'm having a problem with batterys lasting less than 1 ride. I can charge the battery in the morn put on 25 miles then the machine quits basically, tried new batteries and same thing. Any ideas what my problem is? Also does anybody know if this model can be upgraded to the battery less efi system?
Check the VDC at the battery, static [not running] should be 12.5vdc.
At 3000rpm, it should be appx. 14vdc.
Anything less that that, and you might want to look at a new regulator. It is a dual output unit and one line feeds the lights and the other feeds to the battery. It can pop the diode on one side and still function on the other.