Oil alarm going off after motor sits for an hour?

[archer59]

I had pulled up on a sand bar after triming up motor, and was there 30 minutes when the low oil alarm started beeping. I can't see anything wrong. Could the sensor be bad. Looking for ideas. The motor is a 94 Merc 75.

The oil injection was disabled years ago when it failed, and I have been mixing gas for years now with no problem.

Thanks,

Nick

[archer59]

I finally had some time to pull out the shop manual. When I get home I'll take a look and see what was done with the two blue wires that are suppose to go to the sensor in the oil reservoir.

[archer59]

Looks like I need a warning module. There is continuity between the two blue wires that should be attached to the sensor in the oil reservoir. Anyone have one to sell?

Nick

[fishhook8]

4-5 years ago I bought a used boat and motor with a 60 hp Mecury, one of the first trips the motor started beeping, because the rig was new to me I didnt have a clue. It turn out to be the low oil warning even thou there was plenty of oil in the reservoir. Replaced it and have had no problems since.

[archer59]

I found a warning module locally ... but $96! I didn't think I could find another hobby more expensive than amateur ( ham ) radio, I was wrong.