My 05 Rhino with approximately 250 hrs has a fuel problem. I put a new aftermarket fuel pump on and it worked fine for a few trips. Now if I let it set a couple of days the fuel drains back to the tank and it won't start without blowing on the recirculation line that goes back to the tank. Is the gas cap suppose to be vented or not. This thing looks so simple but I haven't figured it out yet!

Help turkey season starts April 12.