Iwas just given a 82 kz250 ltd. ive been told that its jetted for sea level which would explain why it runs verrry rich at 4200 ft. what size jet should i buy and what´s the initial setup for the carb once i´ve installed the jet? i´m a life-long hot rodder so i know the mechanical skills but i´m lost since this is my first time messing with bikes. any help you guys can give me i would love. thank you very much. mike