For anyone looking to do this, it wasn't just bolt in and go, but it was easy to do. I just had to die grind the opening for the motor to align the gear mesh properly, then I added a high pressure needle valve for $25 to slow the rotation down.
I had the same problem. After days of investigating, and trying to convince the dealer I bought my blower from that something was wrong, and got the standard answer, they are all like that, I realized that they sent me the gear which I think was a ten tooth, and I should have had an 11 tooth. I called the company that makes the blower, and they apologized, and sent me the proper gear free, overnight. It works great now.
It,s very frustrating buying something new, that doesn,t work properly, and the dealer is no help.
I feel sorry for people that cann,t figure stuff out on there own, to find the problem, and fix it properly.