Hello. I have a 84 xt 250 with a 82 motor in it. I have been trying to get it running but the timing doesn´t seem right. So I found a cdi box out of a 82 xt 125 with the # 15E-MC 21001 on it. was wondering if anybody knows if this is the same cdi as the 82 250? Any info. would be greatly appreciated.