I have a mercury 650 (65 hp) and nobody will answer me on the mercury forum so I have used this forum before and everyone is very helpful. I have fuel to my carbs and at one time had spark then lost it found out coil wire was rigged so i replaced it, but no matter what the engine wont fire. The negative battery terminal gets really hot and i know the issue is in the electrical but just dont know where to start ??? Please help leave for canada in 3 weeks!!!!