A month ago, I lost a universal at full chat, causing the destruction of my AQ in spectacular fashion. Eh, being an ex-drag racer, it happens. Replaced it, and on the maiden voyage, about 15 miles in - again at high rpm - heard the death knell of another AQ. Took it apart, and on a whim looked at the engine output shaft. It is bent to the tune of 1/4" vertical runout. Went to the local marine consignment store, and, very luckily, found an intermediate housing assembly- My GT21 uses the 6" extension one. I guess I'm pulling the motor, good thing it's a long weekend!
Failure #1
Tow of shame
Failure #2
Getting to be a habit