Also called the air cut-off valve.If the bike is stock, and it just started this, then the system that enriches the mixture when the vacuum rapidly increases has stopped functioning properly; this is commonly called a coast valve, BTW.
sounds like your gas cap vent is not working next time it happens open your cap if you hear air wooshing you'll knowI have a 2005 Yamaha VStar 1100. I bought it used with about 33k miles on it and have rode it for a few months now. I would always fill it up around 110 miles just to be safe, I hate running out of gas as its happened to me a few times on another bike in LA traffic.
About a week ago, I the bike died while riding as if it ran out of gas yet it only had 67 miles on it since my last fill up, I pulled over tried to start it and it wouldnt start. Then when I filled the tank up..it started fine. I first thought I must have forgot to reset my trip meter on my last fill up, but just tonight around 67 miles it died again. I pulled over and switched it to reserve and got home okay.
It's also not been running well, it sputters, and seems to misfire more than I remember. I want to take it in to the shop but I'm a total newbie when it comes to motorcycle maintenance. Are there things I can check on my own first? What should I tell the shop to check out?
Also called the air cut-off valve.
We need more information on this bike and how it backfires to be of much help.
sounds like your gas cap vent is not working next time it happens open your cap if you hear air wooshing you'll know