Help Diagnose Engine Noise on ‘76

[Punchitchewy]

Greetings! I’m new to the forum and vintage bikes. My ‘76 started making a weird exhaust clicking sound on a ride last night and I need help diagnosing the problem. Here’s a link to a short video of the sound:

Your comments are appreciated! Thanks!

 

[Loose Chain]

Ya that sounds like an exhaust leak at the head. Confirm all the nuts are snugged up. If everything is tight then you might want to pull the pipes off and see if you have a cracked flange on one of the pipes.

 

[brettp]

Or if you have a crush gasket that is old and needs to be replaced.

 

[Punchitchewy]

Thanks for the insight!