Originally posted by thefuzzclub
my crankshaft got broken!!!
Sorry for the bad news...

Did you check to see if the broken point of the MT12 crankshaft the same as the one that broke on your original crankshaft?
It may be coincidental that this one broke but my guess is that it probably has got something to do with the misalignment of the main bearings that the crankshafts broke. Did you ever take out and dissassembled the bearings out of the crankcase?