the starting procedures for all models of small engines are different from one manufacturer to another. there is a lot of different styles of carburetors made from other manufacturers. and not all brands of small engines make their own carburetors. therefore, not all starting procedures for small engines are the same, and therefore not all fine tuning of the carburetor is the same.
USER ERROR CAN BE THE FIRST AND FOREMOST REASON FOR MACHINE MALFUNCTION.