Originally Posted by
El Camexican
If you’ve removed the choke plunger and are certain everything is in order, then let me ask how much adjustment is left on the idle screw? Could it be as simple as that you need to turn it up?
Poor running at low rpm is often a sign of a plugged pilot jet, but the choke circuit can add enough fuel to compensate for it to an extent.
Is there a period of time between when you close the choke that it idles well before it stalls, or does it stall as soon as you close the choke?
At the point that it doesn’t want to run without throttle have you tried opening the choke to see if it helps, or makes things worse?
Is your float height correct? 15mm if I’m not mistaken, but don’t take my word for it.
It sure sounds carburetor related. Don’t take this the wrong way, but there are people who consider removing the float blown and cleaning it out “cleaning the carb” when the really is that you must disassemble and clean all the jets and holes. Not knowing exactly what you’ve done it’s hard to guess what the problem might be, but all indications are that it’s related to the idle circuit of your carburetor.