Thanks for weighing-in, Jon. Yes, I believe the choke is fully functional. When it gets cranked and the choke is out, I get a nice'n'high idle speed. If I push back in, it slows down. If I push in the choke before the engine has had a chance to warm up, it'll die. If I wait until it is warm, it purrs at low idle. (If I remember correctly, it is a 2100S.)

Once I have the engine running, it runs really fine. My problem is that critical stage between cranking and idling! It doesn't matter if I give it two presses on the accelerator pedal or 50- it just won't "grab." If I add a spritz of starter fluid, VROOM no problem.

Pretty low-tech description of what is going on, I realize. Do you think this changes things or would you still be suspicious of the accelerator pump? Would fuel siphoning be a possibility even though the glass bowl appears to be full?

A rebuild is definitely planned.

Bill