I have a 2009 trx 420 manual shift 4x4, I was riding it on 5th gear and it locked up on me, brought me to a complete stop. Then it only was able to go on first gear or reverse, was told I needed new friction plates so I installed new ones as the old ones were no good. Was able to bring to fifth gear for a moment and came back to having the same problem, I tried adjusting the clutch and began to click each gear but won't move. I'm stumped and don't have much experience fixing atvs, any suggestions?