noise

I really need help, bought this 2003 Vulcan 800 used with drilled out baffles. Got a big tick coming from what sounds like the front cylinder head. Any ideas on where to start looking?? Got invited on a ride next week but don’t want to screw up my bike

Today, I was riding it and noticed a weird chatter that would become evident at about 2nd gear and up only with the clutch out. If I freewheeled at any speed, the chatter would go away I think everything started after lub. Chain Maybe someone is able to help me? Thanks

Given stock exhausts, which of these would be louder at highway speed - 900 or 1600? I’m thinking smaller engine revving higher or bigger engine at lower rpm.