Overheat Alarm Test

[litespeed]

Is there a quick and easy way to test the overheat alarm on a Merc? I just want to be sure it's working.

Can I unplug the beige wire with the blue stripe at the butt connector, ground it and see if I get a beep? Or will that screw something up? Or is there a better way? Don't want to fry anything as the engine runs perfect.

Assuming the key must be on and the lanyard connected...

[billybob]

yes that is correct, with key switch on, simply touch tan w/ blue stripe wire to ground. that should sound warning horn.

[litespeed]

Thanks! Just checked it. Works great.