> Does anybody know the reason?
What exactly did you do to your Revo?
Was the engine broken in properly?
How did you break it in?
Ever throw your Revo against a wall,
Stomp into the ground or hit with a heavy object?
Please take HEED >> http://www.faqs.org/faqs/models/rc-cars/newbie-guide/
.... We may need more details to properly answer you question
BBA