Hi all, So I'm about to rejet my '11 400s this weekend, which requires the removal of the fuel tank. In looking at the petcock, there is no "off"position, just On, Res, and Prime. So, my question is should I run the tank down/drain it prior to removing it? Otherwise it would stand to reason that fuel is just going to come spewing out everywhere. Am I correct in thinking this, or is there something I'm missing?