I don't think the air adjustment is going to cause all those symptoms so far above idle rpm.
By air test, I meant similar to a leakdown test, pressurizing the cylinder and see if there's any air where it shouldn't be, as with a leaking intake valve.
Won't hurt to check those o-rings, an internal air leak can only cause a problem. We could be looking at overlapping symptoms.
When does the popping occur? All the time, only above 2000 rpm, or only right before it dies? Or is it random?
It happens all the time. I cant touch the throttle or it will bog and instantly die. Right so here is what im doing. Iv ordered a fuel tap rebuild kit, carb rebuild kit. Im putting back on the surge tank and stock air filters. Leaving the emmisions crap off. Its deffo a carb problem because after the engine rebuild it would not fire as you no and once i cleaned the carbs it started first pick only now there is the current problem. I just pulled the jet cover and on the front carb the little triangular shaped rubber gasket was broke. Still together but just sliced if you get me. Could this have caused the problem. Also thanks mishiganteddybear. I get what you mean about the slides.
Ok, I recall which bike this is, but often forget which member's bike has what done to it.
So it's sitting there idling and popping back through carb, then carries on and dies when you gas it more than 2000r,?
Petcock leaking doesn't help. Not sure I would put the airbox back in just yet. You haven't really cruised with the earshave yet have you?
The carb gasket probably isn't the problem but needs fixed.
If the answer to my first question is yes, I really think you're looking at a leaking intake valve and your carbs may be fine other than the gasket.
Also thinking an intake valve leaking might induce a bad pulse on the slides. I know they move, but you may have been seeing this pulse in the vacuum from the intake leak.
A vacuum gauge would show a consistent fluctuation downward every time that cylinder completes a cycle, with a leaking valve. An abnormal pulse in the vacuum. Great diagnostic tool to keep around, saves time and aggravation.