Hi Mate
Where in the coast are you i`m in wangi just past morriset .
First check your powervalves are not sticking ,cables are good ,Check the reg , not shore about pgm2 but stuck powervalves will burn out a pgm3 very quickly.
I would say that you needle and seat are leaking on your carbs you can get cheap kits on e-bay or tyga have seal kits .I would pull the carbs and clean them out .You can prob get them to seal once there clean.
cannot talk jets in this part of forum but sounds scary