i have a 01 raptor 660 and i think i need a new rear shock. My buddy has a honda 400 ex 2004, and me and him can both ride good long wheelies on his quad. but we get on mine and we cannot do the same, it seems as if the raptor is not balanced right or my shock is bad. Does any one have the same problem i have? Someone also said i can have my shock adjusted for my weight for 150 $ and it would be better than any after market shock. Do i need to just adjust it myself? Buy a New aftermarket shock? or have the shock adjusted for myself? or is the raptor just not balanced right for wheelies?