Same boat as you Redman - 137.5, 45, spot on timing, Oldskool rebuild & same pipes. Here it was thought I was crazy lol. 34s w/ enrichner open & kick - if she catches I’m good and it’ll warm but I have to kill the choke almost immediately or it dies. If it don’t start first kick, then it’s 4-5.
Curious what happens to yours with the enrichner setup disconnected and a wedge of sorts put in there to keep it full open. From cold, do you get and hold a fast idle? As 5Twins pointed out - doesn’t appear your setup would permit a full opening of the circuit. Check the bowl port as RG mentioned. If it is blocked be careful clearing it, you don’t want to mangle the orifice inside.
I find mine, once warmed up, is a 3-5 kick restart if it sits for less than 5mins. After 5, 1 kick and go. My plugs under ride conditions tell me the jet setup is great, a chop test looked fantastic. Now that cold weather is here - she’s almost a consistent fist kick - but my enrichner is still useless.....I’m rebuilding a second set of carbs with fresh OEM guts that have gone for sonic cleaning as a side experiment while hunting another project bike. If anything comes about, I’ll letcha know.