Hello i really need some help. Just got this quad running excellent and super fast and guy who built is supposed to be very good and there sup to compete with 2 fast quads. This thing is the fastest one I've been on so far but son rode 3 times and it feels like clutches are gone or tranny is out. When you gas it it jumps like belts loose and gears are grinding but not getting grinding noise it's like a deep hard vibration that feels like it's comin apart. Belts brand new with the I've range kit and 1 ride made it where I can take off by hand. Very weird and has me lost. Can someone please help and sorry about the book I'm writing just trying to explain it right. Thank you