1981 Honda BF75S 1403307 when running, oil indicator lamp is NOT on

bluntforce

Cadet
Joined
Jun 24, 2012
Messages
8
Been moving along getting this little engine running. How can i test the circuit at the bulb harness? What should i set meter to? What voltage should i be seeing?

Thanks
 

bluntforce

Cadet
Joined
Jun 24, 2012
Messages
8
Update: I have verified live oil pressure reading. I have 30 psi. Tested the switch per manual. Found bad switch.

any ideas where to locate the correct switch. One that provides ground while running. An automotive OPS, provides ground when pressure is lost. I can use this but can't ever bulb check the system.
 

Alumarine

Captain
Joined
Feb 22, 2005
Messages
3,684
Some of these might be available using these numbers at an autoparts store.
wellsve.com/showall_ds_oil.php

I believe mercruiser uses them on motors with electric fuel pumps as well.
 
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