when i turn the key on my 01 cbr 600 f4i the pump whines and once and a while does a clicky noise with the whine. and lately its been whining alot more when it idles or i ride.. wondering hat this could be? bad fuel pump? fpr? what could i or should i check.. i have the cct sound too but im worried about the pump i belive the cct is a cheap and ezier fix.. i just dont want to get stranded with the fuel pump dieing and can i buy a 50$ aftermarket pump? or do i need a whole 400$ assembly? if thats the issue?