Buzzer sounding as soon as I turn the key

[Ekimenortep]

2002 150hp 2 stroke, oil injected. Buzzer sounding as soon as I turn the key, both oil tanks are full. I've pulled the sensors for the thermo switches. Still buzzes. I've pulled the harness from the back bottom of the cdi to the main oil tank sensor, still buzzing. When I pull the middle bottom harness out the the back of the cdi, which i think goes to the remote control, oil emergency switch, remote oil tank, and thermo switches, according to the diagram I'm looking at, it shuts off.
also, prior to me buying it, it seems as if someone installed a relay from the oil level wires to the remote oil tank pump that seems to skip the cdi

 

[rejesterd]

Does the alarm go off if it's just been sitting cold for many hours and you simply turn the key to ON (without cranking it)? Typically, that alarm is an overheat warning.

It will also buzz if the oil filter is clogged, so I would check that too.

 

[QBhoy]

Sorry to ask but if it’s new to you...do you mean when you turn ignition on or do you mean it still buzzers when the engine starts ?