Originally Posted by TnDz TJ
Sounds like a bad connection at the battery.... loose cable somewhere.... start wiggling!
X2. Even though they look clean and tight, this is the most likely problem. Either a bad connection, or a bad battery. Please disconnect the battery, REMOVE it, and use a wire brush on the terminals AND the connectors.
The reason I suggest removing the battery is to ensure there's nothing underneath causing the short.
Search around, and google this. You'll find our advice is the common solution.
Hope this helps,