Last night took boat out. Two completely charged batteries. Back in crank motor and got clicking like bad battery. Wouldn't pull start either. After trollin round fishin, I unhooked motor. And hooked to my other battery(brand new). Turned key battery terminal sparked and all I got was buzzing noise. Tried to trim motor up same noise. Motor trims down. This morning trims up and down turned over once and back to buzzing. Any ideas, and any schematics or diagrams would be greatly appreciated.
