Hi. I have had this yzf 2011 for some time now without any bigger issues. But in the past month it started destroying spark plugs. They come out white and ashy and it won’t start unless I change it. But yesterday it didn’t start even tho I gave it the new spark plug but then I noticed fuel pump was completely silent so I checked the fuses (they were all fine). I tried turning the key some hours later and suddenly the pump turned on and the bike started. I really don’t want to be stuck somewhere. Can it be that the fuel pump is not working properly and the motor is not getting enough fuel and the pump doesn’t always want to even start?