valve timing inaccuracy?

[AndyHe_imp]

I just returned from test riding the bike at the dealership. The bike does vibrate more than I would have expected at 3500-4000 RPM in second gear but I figure I typically won't be leaving at that RPM for long periods of time. I didn't get a chance to try it on the freeway. If I find it annoying after riding it many miles then I'll research replacing the intake camshaft with a balanced one as that shouldn't be impossible. Any decent speed shop should be able to do it with no problem.