07-14-2016, 03:01 AM
I'm guessing the fuel in your tank just expanded enough to pour out the vent tube. I've never seen this on the CB, but I've seen it happen to lots of other bikes -- usually right after a fill-up and usually to people who sit on the bike and try to squeeze in every last drop.
If it keeps happening, maybe just try to under-fill a bit if you know it's going to be hot weather and you will be parked shortly after filling.
If it keeps happening, maybe just try to under-fill a bit if you know it's going to be hot weather and you will be parked shortly after filling.