Please help. I have plans to take my son and his friends to the river for his b-day and don't have time to take it to the dealership. I have a 2007 Chaparral 190 ssi with 48 original hours on it. A 4.3 mercruiser engine with the Alpha 1 drive. I took it out today for a while. When you initially turn the key to the on position there is a loud buzzer. This buzzer typically goes off once the boat is crunk. After running the boat near WOT for a while the buzzer comes on. If I back out of the throttle it will go off briefly. Then it comes back on. If I play with the trim it will go off sometimes, b