Over heating warning horn

[Isa4325]

I put in a new sending unit and ready to test it, orange wire to ground, any input as to how much voltage, ohms, etc I should get? Where do I start looking for a over heating horn for a 1972 Chrysler 70HP 707 HE OUTBOARD?

 

[jerryjerry05]

The sending unit is a simple thing.
It gets too hot and completes the circuit.
The complete circuit makes the horn/light work.
The voltage is 12v to the horn.

ANY!! 12v horn will work.
The louder the better, the tiny one the factory used was almost inaudible and caused lots of problems.

I've replace with motorcycle and car horns.

They can be wired wrong so test after installation.

 

[Isa4325]

Thank You.

 

[catfishcarl99]

I added a small red trailer marker light to my horn on the dash in case horn fails. it over heated once since. worked like a charm.

 

[Isa4325]

Thank You