The 650 Moto Guzzi in happier times.
Later I talked to my mechanic neighbor and he says he always closes the petcocks on his Harley, even when he stops for just a few minutes. And in the fall he drains the gas from the tank. I always filled it up cause I thought there'd be less problems with fumes and gas degradation over the winter. So anyway I guess I'll be doing some wrenching on the carburetors and gas tank before riding it again.