I was interested in buying a motor and putting it in my 1984 225dx and I belive it is a 225 dx motor and it might have reverse drive on the motor. The number on the motor is 1AV 002974 the number on the fork tube was JY31NV009GC002974, also on label YAM29U 0023. Any help in identifying this motor would be appriciated. I am really interested if it is the motor that has reverse and will fit in my 84. Thanks Glenn O.