Buzzer

[Thedeerhunter]

Have 1986 Mercury 150 . When switch is turned on no buzzer sound, good water flow, smoking good. Run motor down river any distance stop fish awhile. Turn key on buzzer will come on just like it suppose to do at first.

[boats.net]

May just be a loose wire(key switch, buzzer or main engine harness) or may be the warning module on engine going out.

[Thedeerhunter]

Got a Advance Module that has two wires coming off of it one is burnt really bad and the bottom of module has a crack in it. Does new module have be be set with timer

[boats.net]

No adjustments or setting required, just installing a new one is all that's needed.