I thought about that. And I thought, what about and extended filler neck? This could be an easily turned up thing that screws into the existing one. The breather pipe (that goes to the airbox and causes oil in the airbox issues when the tank is too full), could then be taken off of this extended filler neck. Hard to see how oil could get up into such an extended filler neck on into the airbox. This would allow more in the tank... hopefully enough to keep the feed outlet submerged.