Breaking in bike that sat 4 years

[Wrench]

China copied the 3M N-95 and calls theirs the KN-95.

 

[Sidewinder Jerry]

Sea Foam flushing is a must.

 

[Frogslayer]

Thank you for the tips.
Couldn’t find a c washer, so the $11 new Carb on amazon was easy. Runs much better now, but I am curious about tuning the adjustable clip on the needle. It’s defaulted to center.

I think ordering new gaskets would be a good decision and will give me a chance to clean it up too and make sure everything is sealed. That and front brakes are next on my list.
Lastly, I still experience uncomfortable vibrations at higher throttles on this cheap kit. Are there any easy ways to mitigate?

My guess would be you are running to rich and jetting down would smooth out your higher rpms.