Hi. i have a 06 zx636 ninja doing this weird thing only when cold. after temp rise up to 125 degrees problem stop and runs fine. no power commander,no error codes or anything. only modes are a yoshi slip on and a servo eliminator.plugs are new,clean K&N filter. sometimes go as high as 4k rpms then goes down and up untill reach the 125 degrees. any advice will be appreciated.thanks