I have used light to make sure the pilot jets are not obstructed. I haven't yet had time to do a full teardown of the carbs due to being a student currently. I'm also waiting for some air filters to arrive because when I had the bike idling, it was without the airbox since it didn't have one when I bought it. I am going to see if the restricted air flow from filters might help the bike start rather than just the choke and the open air.
Dune master, did you ever get it to run? And what did you do to get it to work? I’ve got a 83 kz750h that also didn’t have a pilot plug or either main, and ran previously with no filter or mains, but mine has threading for the secondary so it should be a slightly different set of cv34s, but I would be interested to hear what worked for you