Last weekend I road about 900 miles through the North Carolina mountains and back without any problems. Road the bike about 140 miles on Tuesday, no problems. Today I decide to ride over to Barber Motorsport Museum in Birmingham. Had about 1/2 tank this AM and topped off before I left. Filled it on the center stand to the bottom of the filler neck and off I go. No problems on the ride to Barber, but while eating lunch, it starts raining like crazy with thunder and lightening. We decided to come on back to Columbus before it got worse. I stopped just out side of Birmingham with just a little under 1/2 tank. When I opened the fuel cap I heard a faint whoosh, Hummmmmm. I filled it up and started home, again just to the bottom of the filler neck, on the center stand. 2-3 times at red lights the engine died while idling, but it was raining pretty hard, so I thought, hum ? water in the intake. After about 60-70 miles I noticed that the fuel gage was still full and the BC said I could go 285 miles on the fuel in the tank. WTF? I pull over and open the fuel cap (had to pull pretty hard on it) and there was a big whoosh with a spray of fuel straight up out of the filler neck. Damn!
I close the cap lightly so that it didn't lock and take off again. Initially I was reading about 3/4 tank after opening the cap. However, as I rode another 10 miles or so, I notice that the fuel gage indicated that the tank was filling up!
Sos, I pull over and notice the cap is now locked and opened it again with another whoosh. Shit!
This time I leave the cap propped open and ride the rest of the 120 miles back to Columbus. It's a good thing the rain let up or I probably would have gotten a good bit of water in the tank.
So, I'm thinking the canister is kaput
, but don't know why. I have 4300 miles on it currently. I doubt that there is an easy fix for this. The tank is absolutely not venting any at all, zero, none, etc.
Does anyone have any recommendations? Looks like a trip back to BMW of Atlanta and I doubt they can fix this while I wait.
Has anyone heard of a canister going bad on a GT or does this sound like something else? I don't want to do anything that will void the warranty.