Hay guys, have just finished run in and my bike rides like a dream from 0-34 kph but then you can hear the motor has more to give (i actually had it up to 50 kph a couple of times) but then it just starts coughing and spluttering and refuses to speed up. I am not running any fuel filter atm and was wondering if that could be causing the bikes "asthma attacks"? Cheers to all n advance, jimi