I have an 02 800 with the flatside carbs, noticing the coating is almost gone on the slides. LATELY THE HIGH IDLE PROBLEM IS GETTING WORST. I THOUGHT OF GETTING CARBS OFF A 03 600 HO W/HOODED NEEDLES. WHAT CHANGES WOULD I HAVE TO MAKE? WILL THE NEEDLES WORK? MY 800 HAS J8-9DGI 07-58 AND THE 600 HAS J8-9DGI 13-58. WHAT ARE THE DIFFERENCES ANY HELP WOULD BE GREAT, THANKS CRAIG