i have a 1984 90hp johnson that runs pretty good it has the vro set up that i'm still using..it seems to work well. i notice the oil tank is going down...i have no gauges but i think there could be a buzzer in the controlls..is there any way to test to see if i acually do indeed have a warning buzzer...i considered statring the engine and disconecting one of the 2 wire that go to the oil tank but i dont want to hurt any thing..would this buzzer tell me about a overheating issue..or a low oil warning...any ideas would be helpful