If you post to the engine forum, there is a resident carburetor expert that post on a regular basis that can you give you some guidance and possibly point you to a video.
I also thought your question was a good one. With so much stuff on the internet it would be nice if you could get input from someone that knows what they are talking about and has possibly already been through the pain of identifying a good source.
Last edited by dgrinnan; 02/22/2017 6:19 PM.