Anyone have a video on replacing the valve shims?

I have a cold start issue and rough idle. Starts and runs fine when warm. Have notices a little smoke when cold and can smell exhaust when its warm but don’t see any smoke when warm. Engine was completely rebuilt about 1200 miles ago and I run a UMP filter system. I have no dust or dirt past the UMP canister. I did replace the cam chain tensioner with an Alba manual one and that stopped the chain slap I had.

I’m thinking I need to adjust the valves.

thanks