Motor is 1986 Johnson GT 150,,,vro is bypassed,,pump wires unplugged. My buddy had it out today and it started beeping and he said it accelerated beeping as he sped up . He unhooked both overheat wires on heads but no difference. We thought it might be low fuel pressure,but we are pretty sure the fuel vaccum switch is unhooked,,there is 1 wire that comes out of bottom of switch that goes to ground, and the other wire that comes out of bottom goes to a rubber insulated screw on mount for switch,,there is no other wires that go to it,like a power wire. How do these vaccum switches work exactly.. The weird part is,,when he was headin back to the launch it ran like a champ. What else could possibly be causing this buzzer/beeper to go off.