So my 2016 h2 recently started to act up recently. Guhl flash, pcv, and vandemon full system. About 6500 miles on it. Now any time when riding and coming to a complete stop or letting off of the throttle completely the bike has an erratic idle as if it wants to die. It will shoot up to 2k rpm and drop to 8-900 rpm and do this for a good 10-15 seconds before it evens out to normal idle. Best way to describe it is it sounds like it has a wicked set of cams lol. I would appreciate any input. Other than that bike is fine.