hi me again think i figured it out u make adj.on the 2 screws, u watch the 2 new tools rise together so u can adj. the screws u pointed out at first, i thought u were doing adj. with new tool u make,but new tool is used to watch the rise and fall and adj. are made with the 2 screws am i correct,when i have filters off carbs.i can see that my piston for lack of a better word do not rise together so i think this is proceure i need to do, thanking u in advance, john