This is to the OP. If you understood how the fuel, ignition and compression systems work together on a small engine, this thread would have ended 60 posts ago. Reading what you are posting the techs on this forum can see that by not even knowing the names of the components or how that work by themselves and in conjunction with other components tells us your expertise on this subject is very minimal and you are looking for someone to hold your hand and solve your problem. Maybe you should reread post #25. You are so closed minded and your assumptions are absolutely correct, you won’t listen to suggestions given or think that maybe you are wrong. You claim that your $1000.00 phone can’t produce a good audio, as an excuse for us not being able to help you. Did you ever think that your 100% is not achievable on a $50.00 engine? Yes that is what it cost MTD to purchase that engin, and Briggs still made a profit. It’s time you put your ego and false expectations on the back burner and realize your assumptions on how a perfect small engine should run is not achievable.