Re: oil sensor mariner 1995 125hp
Hi and welcome to iBoats.
Best information you can give us right now is the serial number of the engine. It will start with 0, have a letter, probably a D or a G, and then have 6 digits.
Without that number we don't know what we are dealing with.
What type of beep? One second intervals, long intervals or continuous sound?
Chris..............