My 1983 ez go golf cart will not run with a load on it what do i need to do to fix it?

I suggest you test your batteries and your controller. Any one of the cables could be bad. I trust Buggies Gone Wild out of Austin, Texas to walk me through most problems that I have with any of my golf carts. They are always willing to lend a hand even if its over thw phone. They sell awesome controller upgrade kits that will wake up your old buggy. I have aded a few contollers to a few buggies and they are like night and day. Tell them Joel recommended them. I have always got a straight answer feom these guys. They are not just about teying to sell parts but really care about building a relationship with their customers. There are so many things that could be putting a damper on your system. Buggies Gone Wild will point you in the right direction and they will send pdf schematics via email at no charge. .!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Check batteries for proper voltage under load. If this does not solver the problem, email me at [email protected]