I had sent a email to horizon hobby about the tail motors burning out so quickly and this was there response. Hope it helps I Know some of you have already done this, but for those who haven't , check it out.
My Email
I've been reading the comments on the various RC groups on-line and there seems to be quite a concern over the tail motors continually burning out. I'm sure your company had been made aware of this issue and was wondering if perchance you had come out with a resolve to this problem.
Please tell me you have this matter in the works and maybe post something about any suggestions you may come up with to resolve this motor burn out problem. Better motor , Brush-less motor and how to's , different tail set up upgrade , anything? need Help.
Horizon Hobby Response
The Blade Heli has gone through extensive testing with stock motor setups, and lipoly batteries, and its been found that all you will need to do is change the pinion on the stock motor, and you will be able to run a 3 cell lipo with no trouble. You will want to change over to an 8 tooth pinion, and everything should work fine