My 2007 225 Opti was put into service in Nov 2010. I now have 32 hrs on it and it has been in the shop 3 times to bleed the oil system and it looks like I will have to do it again. Each time I have come back to the ramp turning a steady 4900-5000 rpm for about a mile and when I bring it down off plane the alarm goes off. It's getting a little embarrassing. any ideas?