V-Twin Forum banner
1 - 5 of 5 Posts

·
Registered
Joined
·
6 Posts
Discussion Starter · #1 ·
I am in the midst of finishing the wiring on my custom bike project. In doing so, I am baffled as to what the wiring principles are to be for the oil pressure switch. A single lead/wire goes to the switch but how does it work?

I guess my goal is to figure out how to wire in my "low oil pressure light" indicator off of the switch.

Any of you gray beards have any advise?

Thanks,
Dennis
 

·
Registered
Joined
·
6,413 Posts
Well, if I remember correctly, that is a hot wire going to the oil pressure switch. Low oil pressure grounds the switch, thus completing the circuit. Just wire in the light to the same wire.
 

·
Registered
Joined
·
1,893 Posts
Ed is correct. The switch is grounded simply by being in the motor. When the emotor develops pressure it closes the circuit.
 

·
Registered
Joined
·
72 Posts
The positive lead goes to the light filament (center contact). The ground portion of the light bulb goes to the switch (oil pressure sending unit). The switch is normally closed. Turn ignition on and the "OIL" light comes on. Start engine and the oil pressure "opens" the circuit, making the light go off.
 
1 - 5 of 5 Posts
Top