So i have a 79 starcraft i just installed a 91 johnson 70hp on it, the motor starts and runs smoothly but i get a constant buzz when the key is on and when the motor is running. I unplugged the temp switches and it still buzzes then when i unplug the two connectors coming from the remote oil tank (low oil sensor i assume) it finally stops. I used the 70's controls from the original evinrude i dont know if that is why its causing the warning buzzer to come on ? Any help is appreciated, Thanks!