When my Valkyrie was new-to-me I thought there was some rattle/rumble coming from
around the timing belts. Daniel Meyer has an InZane session where you can bring
your bike and ask questions about it. I asked him about my rattle/rumbles at the 1st
Johnson City Inzane and he dismissed it. So did I, for 75,000 or so miles, finally
I (
https://www.valkyrieflatsix.com/) changed the belts and tensioners.
-Mike "yours might be about to blow up, though

"