my magnum 500 has been quiting when put in reverse. i herd ths is typical for thease machines. and i have another post about lack of power. yesterday i was riding and it is working great full speed again no stalling when shifterd into reverse. i was in some mud and got hung up. now when i pout it in reverse i dont have to push the override to get full throttle BUT now even with the override pused I have no 4X4. aneyone have this problem?