i have the hyper black mine has been a nightmare to start , run in two tanks at idle then went to run in at quarter throttle was a pain to start then when we had it running about the engine cut out and the pull start had come completely off not snapped or any thing like that but 2 screws gone and was left with fixing the pull start which since then doesnt seem to be the same.
but persistence is the key, but the blisters are not good:(