hey how difficult is that i called traxxas and they said that they would not suggest to do that will tha cancel out my life time warranty cuse iam almost at the point to just swap it with a new 1 traxxas has that life time warranty dont realy now how that works out either. ? could it be that i just have a bug engine that is just defected from the factory cuse i have done everything u said plus what traxxas said yall both told me sumwhat the same and i can not get it to run good at all and this has been since i purchase it and like i mention before this is not my first r/c had problems before but never nuntin like this