carb tuning

So is it possible? I do not have a manometer. Here’s my theory and happy to have it critiqued to death. Stock XS650SH, stock pretty much everything. Points on this one in Australia. If I set my idle higher and disconnect a plug lead from each side one at a time, then change the balancing screw...

Just got done with the 3 year on/ off again xs street tracker project. Runs great but has a flat spot around 3K (I think when it's coming off the pilot and on the main), and I'm looking for some tuning advice. Particulars: 700 cc JE pistons and shell stage 1 cam from Hoos, Jetted it as per Mike...

So basically I took my carbs off to Adress the idle issue I was having. Upon further inspection I found the previous owner had two different sized mains in the carbs and one pilot clogged. I couldn't get the other pilot out because this... Somehow that thing snapped off the tip of an easy out...

1978 XS650 with pod filters, straight pipes and bs38 Mikuni's. Just replaced pilot jets from stock 27.5 to 30, main jets from 135 to 140, upped the clip on the jet needle to the 2nd slot from the top, have the mixture screw out 2.25-2.5 turns and had the entire carb sonic bath cleaned. Still...

Is a 150 main causing my midrange break-up? I am running a bs38 on my 1978 xs650. I have pod filters and open exhaust. From every post I found I should run a 150 main and 32.5 pilots. I've done all the tuning from the tensioner, valves, timing etc... Synced them with a manometer, adjusted...