hello...i am building a bike from ground up, is of many different parts, mostly harley....my motor is a buell xb9...i got this motor with 9,000 kms on it, original owner stated that it made alot of noise, he took it apart , but says everything looks fine. i am of the understanding that these motors have self adjusting valves...maybe this is the noise?....i´d appreciate any ideas and opinions...thanks