[joe scott]

I have a zr580efi and after an hour or two the battery dies and its a barnd new battery in it and i cant figure what the problem is

 

[jet]

Check the ground on the chassis.

 

[jlh33]

Make sure you have a good battery with a good charge. The battery is the whole key to the efi system.
Read the pinned topic at the top of this page about zr/zl bogging/cutting out. Alot of good info in that post. Let us know what you find.

 

[JASOND94]

I had the same problem last year on my 94 580 efi and it turned out to be a bad ground, start checking for loose ground wires.

Jason

 

[CFM-Z440]

check the fuse. There should be a fuse in a yellow holder near the battery. You may possibly have a regulator problem that caused it.