i am new to jeting, we just purchased a 98 700 rmk. we ride mainly between 6-8000ft. the sled has been having a problem with only running on one cylinder at these elevations. some times its ok, some times its not. its always getting spark so we think its a jetting issue. the mods include veforce 3 reeds, slp head, and twin pipes. im not sure which jets we should be running. thanks.