I read about the petcock issues Why cant u put a manual in line on/off valve on fuel line...as long as it on OFF gas cant get into motor
I had a manual shutoff on mine & like jettawreck has posted,
YOU'LL NEED TO REMEMBER TO DO THIS EVERY TIME! It wasn't that big a deal for me, as I had to do it yrs. ago when I owned a TR6 Triumph. Just get into the routine & it becomes habit, kinda like doing the l-r-l traffic check when pulling away from a stop sign / traffic light...
p.s. a side benefit would be somewhat of a theft deterrent, as the thief would only get as far as the gas in the bowls would let him travel...maybe half a block...