Idle Problem

This was Hondas', dirt bike back in the day. That is a plain old keihn carb. The cylinder with the cold pipe is flooded/not firing. The high rev is leaning out, but 2 carbs, it could be 1 is stuck wfo? And it has 1 or 2 ignition points to set? Vintage Bob

Carb cleaning, especially on an older neglected bikes, can be a real nightmare. I swear, barnacles start growing in some! Not only does the jet itself need to be spotless clean, but the passage that it screws into also. The carb body itself may come out okay after a through cleaning, but replacing worn and defective parts can be troublesome and expensive. A scratch on a jet orifice or a worn needle or slide can have horrible results come jetting time. More questions than answers? You have 2 carbs that will have different jetting needs. So do not be alarmed if the jetting turns out to be different. The carb cleaner in a gallon can for soaking parts, works better than any spray. If you leave aluminum parts in too long it pickles the metal! WFO means wide #%&%*$# open. And yes, I was curious if it has 2 points. They can mimic jetting issues. Just like a plugged air filter or silencer. You could have valve seating issues with the cylinder that has the cold pipe? Before jetting and cursing at the carb, there are some variables to check out first. Twice as many with your bike. If it runs better after cleaning, even just for a second, its likely the carb.