Please help, I have twin 570a Volvo Pentas coupled to 270-290 duo prop ( not long had the boat) it seems to run fine at any speed day 1. The second day I run it I can be doing 2200 rpm and then it cuts out without warning. When I switch ignition back on everything seems to be fine except the trim/tilt which is showing engine up with red light and a reading of + 8 (normally -5 when trimmed fully down) I can't seem to trim up or down but the motor seems to be down anyway. I have heard that it could be a faulty trim/tilt fuse through 1 of your forums. Where should I look for this fuse??? Any help will be appreciated regardless of how silly it may seem, thanks in advance