I am new to atv's and such, but I did just buy a like new 01 raptor, I know that the transmission will need to be replaced sometime, but thats another issue. My question is- when I run the raptor hard, like balls out all the way thru the gears, it will die when I let off of the gas. Is this a valve issue?? Every once in a while, It will just die when putting around. How much will it cost to get the valves checked, and since I did bring it up, how much will a new transmission cost?