Wilsons Sandbox

I have a new noise on my 2002 Kawasaki KLR650 (still under 4,000 miles). [an aside: Every time I practice wheelies on it I get some new noise. Last was the loose headlight. The guilt begins again.] This noise I cant find the loose part or fastener that is doing it. It sounds like you would expect a frayed speedometer line to sound; sort of a wind-up, zing thing without any steady pace. I disconnected the speedometer cable and the noise persisted. It doesn't sound till the bike begins moving, and it starts early on. It seems to dissappear after a speed of about 35 mph, but that could be it's drowned out by wind. I hate to be a guy that waits till it breaks before fixing it. but this one has me giving up so far. Any guesses would be helpful.

looking for a bike for an older gent about 60 years of age witch of the bike would be best for him wan't to tour around with me he need something small.thank you