You will have to change your brake line and throttle extension or longer throttle cable. not 100%, but i do believe you can get away with 4 inches, anymore and you will have to lengthen brake and throttle. Been awhile since i did a polaris.
take your bars off the clamp then lift up on the bars then it will tell you how high you can go without extentions. with my 98 my brake line was just a bit to short so i found a shorter route from the brake and worked out fine for me