Im not positive of much but the full number on the case reads MC 16 E - 1219430. I cant even be sure that is right either as I got two extra sets of crankcases with the deal as well as a bunch of other spares! I will be sure to do more research if I find im missing something and need to buy something. I hope the pic is posted how you wanted? The pic I posted has the rs250 motor in it still as im still assembling the nsr motor.
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Alex