I was riding my quad and I was going through alot of mud so I put it into low gear and it popped out. When it popped out of gear i let the enging rev down then tried to put it back but it just grinded. Now it will drive fine in reverse and go into neutral and high range. When i get to going fast in high range it will pop out of gear too and i dont know why. When I first bought this quad i went out to ride it and it had a similar problem where it wouldnt go into any gear and the shifter wouldnt even move. The mechanics charged me 1300$ to fix it and now its doing the same thing. I cant really afford the first visit there and for sure cant afford to go back. Please help me!!