Past two times out, I have heard beeps at around 40mph. everything seems fine per the gages. Its a 05 Tige 22i which has been proplem free, hope fully this is a service warning? but shouldn't need it for another 15 hours. The beebs are in secssion of two * *, once throttled down to 35mph it stops.

Temp OK? Could be your impeller is failing.

Deep water warning possibly. Ive seen it on a 21i, at higher speeds the depth finder displayed something like 999.9ft at times. Not sure of the number of beeps. You should be able to remove that warning, check your manual.

Impeller was just changed, temp is good. <BR> <BR>I'll try and take notice of the deep water when it goes off again. <BR> <BR>Thanks guys!

^^^ That that right there is what I would go with. At full throttle, it's not uncommon to get air bubbles across the transducer and it will sound off. A couple of other engine related things are: Knock sensor, engine temp, oil pressure, water flow, may be fuel temp. <BR> <BR>What engine do you have? The Marine Power may have 2 oil senders, one for the gauge, one for the sounder. If the oild level is too high, the oil will foam up and cause the sounder to go off even though the gauge says the pressure is normal.

Mike its the Merc 350 mag mpi

Not going to the rev limit are you?

not @ limit, crazy thing it just started to happen. I have had it wide open before and never beeped. Is this something that I should get fixed or checked out before going out again? I would hate to loose my last weekend pm ride.

Just a thought. I dealt with a pair of low charged batteries. Boat would run fine at low speed. When I increased speed I would get an alarm. This was diagnosed as a low voltage alarm. Pulled and charged overnight...all good.