Hey guys, I recently picked up my ZX4RR and after putting my slip-on exhaust on the bike I noticed that on cold start the idle fluctuates. (I only had the bike a day before putting the exhaust on but I’m sure it was doing this before the slip-on). On start up, Idle will go to 2k rpm’s like normal, but after a few seconds it will quickly rev up to 4k rpm’s and then cut back down to 2k rpm’s. It’ll do this about 4 times and then be fine. It runs great, but something is definitely going on with it. Any help is appreciated!