i have a bobcat 61 inch ztr with a 23hp kawasaki. now, i was wondering if my voltage regulator could be bad. the symptoms are, the mower has a new battery, but cranks very slow. i tried 2 different new batteries, replaced the starter and cables, but still cranks slow. i have tried to jump it with a truck, but the mower still cranks slow like a battery running out of juice. could it be the voltage regulator? anyone with though about this?