Low oil warning light and alarm 1989 90hp Johnson

[Zchef]

My warning alarm and light come on and stay on even though nothing seems to be wrong. How is it triggered and possible fixes. Thanks in advance

 

[racerone]

One thing for sure is that you need to run with 50:1 in your tank untill it is sorted out.------Could be an air leak / blockage / or faulty module on the VRO pump.

 

[64osby]

On mine I found a hairline crack in the feed tube between the pump and the carb inlet, about a 6" long tube with a screen in it.

It was very hard to see any issues but once I moved the tube it broke a part. The tube was very hard and brittle.

I believe the crack allowed a small amount of air to be drawn in.

Might not be your problem but it is a place to look.

Good luck.

 

[boobie]

Try pumping the oil primer bulb and see what happens.

 

[Fed]

The low oil sensor is in the oil bottle, it warns you with a little chirp every 30 seconds or so when the oil level is getting low.

 

[boobie]

Sorry, I wasn't thinking. I was thinking about no oil.

 

[boobie]

Prior to 1996 OMC had probs with those oil tanks giving off false signals due to the electronics in the oil tank. You may have one of them.