My motor keeps beeping at me for low voltage. It seems the volts show around 14 until I start to reach top speed and then it starts dropping and eventually starts to beep when it drops just below 12. I'm wandering what would be causing this. Sometimes it runs fine and doesn't move at all but usually does lately. When I hit the trim, it drops pretty quick no matter how fast I'm going. Does this sound like either the belt is slipping or maybe a voltage regulator? Oh, and when the volts remain high around 14, my speed is much faster than when it drops. It seems sometimes the engine runs strong and sometimes pretty weak and it's hard to even get to 60. It's got a brand new alternator on it as well. Yesterday in a tournament, the volts actually stayed just above 12 and kept creeping down below and I would let up on the gas and it would stay at 12 but not any higher. Something ain't right. Thanks for any help.