I'm not familiar with the bike or carbs, but it sounds to me like your float needle(s) isn't/aren't seating properly and cutting off the fuel delivery into the carbs, wag.
If the carbs are older and have never been rebuilt, new float needles & carb kits would probably be worth doing fwiw
Edit re the pod filters, I think 5-10% richer jetting is usually called for,,, but with the increased gas usage and fuel smell, doesn't sound like that's the issue imo.
Good luck
Kelly