sounds like not enough fuel. Adjust the idle up, maybe give the fuel screw a 1/4 turn in.
HOWEVER,
Pulling out the advance knob advances pump timing .20mm if it's working properly. I can't imagine why that would make it die, but double-check the timing - could be way off. .90mm is a good setting.
I'd also wonder if all the injectors are firing, gotta loosen the 17mm fuel line nut (at the injector) while it's running to see if there is NO change in the idle.
HOWEVER,
Pulling out the advance knob advances pump timing .20mm if it's working properly. I can't imagine why that would make it die, but double-check the timing - could be way off. .90mm is a good setting.
I'd also wonder if all the injectors are firing, gotta loosen the 17mm fuel line nut (at the injector) while it's running to see if there is NO change in the idle.