This weeks edition of Cycle World has some neat stuff. The best information available is how to tun Carburetors by Kevin Cameron who used to tune high performance road racers. He really does know what he is talking about. Print it off and take it to the tool box. it will be helpful. If you don't know what a carburetor is read the article.
https://www.cycleworld.com/story/bikes/kevin-cameron-explains-how-to-tune-carburetors/
