Hi their , I just a vulcan and i realy like it, but at high RPM. she cuts out, at about 90, she just dies . So my son and i are takeing are first ride up the coast, not realy wonting to run an injurd bike ,but this ride is are first. I just to go. So if anyone has idea as to what the problem is or a wquik remedy.Man i could realy us it this morning. THANKS VERY VERY MUCH.