Topic: Oil pressure light question

[tkarahalios]

Hi Folks,

When my bike has been sitting for a while and I turn on the ignition key I only get the green neutral light turning on, not the oil pressure light (this is prior to starting the motor).

After I ride for while, when I hit the kill switch and the motor dies the oil pressure light comes on. Any ideas what would cause the oil pressure light not to turn as soon as I turn the ignition to the on position? Are these symptoms of a bad sensor, or bad wiring to the sensor? Any thoughts appreciated. I'm worried that the warning light might not come on when needed in an emergency.

Thanks
Tas.

1975 CB550K1
Mostly stock.

[reddyvv]

I would jiggle (technical term!) the wiring and the bulb housing to see if it comes on when you first switch it on. Could be a loose connection or corrosion that connects with the vibration of the bike. If that doesn't work I would suspect the pressure sensor.

[Sami1987]

My neutral light was doing a similar
Thing. I found the socket was loose!
Good luck!

[riverfever]

I had a similar issue with my project bike. The light wasn't coming on at all. I sent 12 volts directly to the bulb to verify the led was working. I checked the continuity of the wire and it was good. Finally I took the wire off the oil pressure switch and ground it to the frame and saw the led light up. The only thing left was the sending unit. I got one off ebay and it solved the problem. 

[flybox1]

Clean the contact at the sending unit.

[tkarahalios]

Hi folks,

I just wanted to close this thread out and let people know it was in fact the oil pressure sensor that was the problem. I bought a replacement on Ebay and swapped it out. Everything works as it should. Glad it wasn't a broken wire since tracing that down might have been a pain.

Thanks for the tips.
Tas.

[Deltarider]

Most of the 500/550s will have their oilpressureswitches replaced sooner or later.