Has anyone come across a breather cap for an 1150GS??

Assume you're asking due to the propensity for the 1150GS to spew petrol all over the place after you've filled it to the top then left it sitting somewhere warm for a while. You could have a look at discussion about this at http://www.advrider.com/forums/showthread.php?t=126644 and do the modification these guys are talking about, or when you're filling up, don't top the tank all the way off.Garry.