2002 Mercury 200hp efi 4 beeb alarm

Mercury 200 efi warning beeps 4 times about every two minutes

here ya go... be patience, its a little slow ta open.....

http://boatinfo.no/lib/mercury/manuals/150efi-175efi-200efi.html#/0

I had same problem with an Opti. Either water in fuel filter or low oil alarm. Mine turned out to be the sensor inside the oil reservoir on motor.

Thanks for the info.. I ran it low on oil and will change out the sensor. It's great to have a site like this.

The spaced alarm should be your oil alarm. Check the oil cap seal on the motor, the oil tank, and the oil tank filter.

Yes it was the oil tank on the motor. The float was moving up and down freely but had to be replaced. Running fine now with no alarm. Guess all they need is money.