Join Date: May 2014
Location: Summer Shade, Ky
Yes there is a fix, take apart the gas cap, you will see a small red rubber diaphragms, rip that sucker out of there, put cap back together, and enjoy.
Note: the purpose of that diaphragms is to prevent gas from leaking in case of an accident if the bike ends up on its side, even without the diaphragm in place it still only leaks a few drops, theses get old and get stuck, and are simply not worth the hassle
IMHO, I have done this modification to my EX500 going on 6 years without any issues.