I have recently snorkeled and ran vent lines on my 2011 Grizzly 700(tougher than I thought) and have been riding it for say 3 months with no issues...recently I went riding and it was a lot hotter temperature wise and got the gas bubbling in the tank and had some issues with gas slowly but surely coming out of the vent line I ran from the roll over valve which has not been replaced with a inline filter yet....has anyone had this problem? I was told there is a vent line on the tank somewhere that is probably clogged causing back pressure in the tank but haven't seen any other lines from the tank...please help...thank you..