..have a vulcan good day!
Good info & facts right there ! Thanks Dev.I had been having an issue lately where the bike would start to act like she was out of gas at around 110-120 miles on the tank. I knew that I should have been able to go to about 140 miles before switching to reserve. I would switch to reserve when it would start happening and it didn't really improve. Luckily I was always near a gas station so I would just pull in and fill up (about 2.5 - 2.7 gallons worth) and then take off with no issues again.
I had cleaned the vent hose and even taken the gas cap apart to clean it well. No improvement.
Then I saw a thread by VOIPDoc I think about replacing the little diaphragms in the cap with lawn mower filter material. That got me thinking. So I took those diaphragms out of my gas cap to inspect them more closely than I had before. One was stuck to the plastic and I couldn't blow through it at all. I peeled it off the plastic and then it worked like it should. I went ahead and replaced them both with the lawn mower filter material for now to avoid the issue completely. No problems since.
So all of that was a long winded way to say make sure you clean and check those little diaphragms really well.