I just bought this motor from a Yamaha dealer. I have been reading all the alarming issues I could find, but none seem to be my problem. The dealer also installed the digital gauges. The motor runs fine up to about 3400 rpm. The alarm sounds, but the engine does not die back to 2000 rpm per the book. I usually back the throttle back to a idle, until the alarm goes off. No over temp alarm, and the pee stream is cool to the touch. However, the engine seems to start missing, or running rough. When the alarm goes off, the engine seems to run smooth again. It did it 3 times tonight, all with the same sequence, alarm, rough idle, then it smooths out. we ran for almost a hour at 3000 rpm, with no problem. The oil reservoir is full. The Gas is fresh and I replaced the primer bulb. There are no air leaks in the gas line. Any Ideas? the dealer is not in over the weekend.