Ok guys back to bother you again, Just after some advice on what to check/replace regarding my issue. Im having trouble with the revs on my fzr 250 2kr non ex-up the bloody thing wont rev past 10,000rpm and sounds like it hits the rev limiter its like this from 1st to 4th. In 5th-6th once over 80kmh it has trouble reving past 8500-9000rpm its like a huge flat spot and takes a fair few seconds of holding the throttle wide open to start gaining speed again then hits the limiter at about 10,500rpm but at this speed the limiter thingy makes a noticeable mettalic tapping noise presumably from the top end. Revs all the way to red line at idle and runs great just ridding around town as long as I change before 10,000rpm and dont want to go past 75-80kmh in a hurry. Thanks.