Purchased a 84 Club Car - Electric. Has new batteries and soleniods. Car had lots of wierd coils attached to the soleniods. Car lurched in acceleration. Sparks flew from the rear. I orderd and installed the factory coils. Accel lurch was almost gone but 3 rounds later the first coil melted off the cart. What do I do next? Why is there so much juice hitting the soleniod coils? Could the speed control switches be different than stock? Cart hauls _ss for a 36 volt. Help?