I have just noticed an issue with my ninja that was not there the other day. When you turn the key to on and it does the prime and self check, it sounds like a smooth high pitched noise. Tonight it just has a quick grinding sound, bike still turned over but the initial prime of the fuel pump I assume was not the nice smooth sound, more of a quick grinding sound. Reckon I might have picked up some shit in the tank? Obviously is a concern this close to needing it for my test.