loss

this is a 2006 utopia with twin rotax engines. above 6000 rpm the left engine loses rpms, then the buzzer goes off, and the overheat light comes on. i shut down the engine, wait a few minutes, start it up, and it comes on only to do the same thing. at lower rpms, the buzzer comes on after a...

I have a 2000 XP. It has been running great but last weekend I noticed a loss in the top end / high speed performance. It will only run about 40 mph and 5k rpm. Normally will hit ~55 mph and ~6300 rpm. I replaced the plugs but they did not look too carboned, nothing out of the ordinary. I...