[brenchao]

Good afternoon, all. Wondering if anyone can narrow down this startup sound. Startup clutch perhaps?

https://www.reddit.com/r/CafeRacers/comments/vfawg0

 

[Classic250]

Just a guess - but could be your starter clutch is faulty.

 

[TrialsRider]

Sounds like it is starting easy and then it sounds like 14 tiny woodpeckers trapped in a steel barrel.
Drain your engine oil into a clear glass container and see what falls out.

 

[woodsman]

Drain the oil over a magnet.