When im driving down the trail in (H) High range, my (R) reverse light on the dash comes on also, so the (H) and (R) are lite up at the same time and the engine cuts out for a few seconds, then the (R) will turn off and it will run fine for a little while then it will happen all over again, doesnt matter what speed im going the (R) will come on and off at anytime and the engine cuts out. Can anyone tell me why and how to fix this? Thanks in advance.