New battery not starting tractor

[/pine]

If the jumper cables start it fine, that would indicate that the problem is corrosion within the cable ends that act as resisters between the post and the cable. If the frame connection was bad, it would be hard starting with the jumpers as well. It's still advisable to go ahead and clean them up as well while you're in there.

Not necessarily true...on more than one occasion (different machines) I've had ground cable issues that were entirely intermittent...ambient humidity can be a factor...