My neighbor disconnected/plugged the remote oil tank on his 79', 40 HP Johnson He's going to mix the gas & oil manually. He says he gets a low oil flow alarm and the motor will only run at a low RPM. My question is, do you have any idea where the oil flow sensor/sensor's would be so he can jump them out? There's no information in the owners manual and he's been unable to find a wiring diagram on the Net.