The idle is perfect.
Once warm, "choke" can be turned off. Slow application of throttle will increase RPM slightly... by a couple hundred, then it begins to miss. Starving for fuel. Pull the choke and the RPM climbs progressively with the choke lever. Additional application of throttle will again increase RPM slightly until it begins to miss and or/falls off. Rapid open/closing of throttle can get the RPM up significantly higher, but not reliably.
Its NOT the idle circuit. I did wonder if the slide is not coming up. The diaphragm appears fine. No damage. No holes. No stretches or wrinkles. The bike is fully together. I tried to pull the airbox out of this thing once and I as I recall it was a complete PITA. Obviously I was missing something.... or maybe it will only come out if the engine is out. (???)
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