My garage reeks of gas since I got this bike. My buddy picked this up as a barn-find. 1983 in mint condition that sat in a barn for around 20 years. He cleaned everything up and got it running like a sewing machine. 11k original miles. Runs great and I bought it off of him. But when I leave it in my garage, it leaves my garage smelling like gas. I can’t find a petcock on it. Anyone have any solutions for this as I’m new to this bike?