[HanktheHound]

My bike is a 93 KX 125 it has a very recent bottom end rebuild on it. I bought the bike in pieces and took about a week to put it together, we did everything right and took our time. The first time we started it, it was easy like, 3 or 4 kicks. Then it was stolen by two worthless individuals, through the help of some friends I managed to get it back last friday. The problem is now it won't start unless the timing is advanced all the way and then it has no power. I'm wondering if dumb and dumber didn't fry my top end or something, I don't know that much about 2 strokes and this is my first bike. But I do know that it is firing on the down stroke because it backfires while you kick it. Any idea's on how to time it or what the problem may be is greatly appreciated. Thanks
Dennis