XVS650 owners: You don't have a sub-fuel tank (as in a seperate one under the seat) do you - you only have the one main tank and it's gravity fed to the carbs. That's right isn't it? (I want to verify as it appears the 650 tank will fit over the bulky backbone of my XV535's frame. I want to ditch my two tanks, with all the hoses, electronic reserve switch, electonic fuel pump, and no doubt rust and 20 year's agedness thrown in, for the simplicity of one old-fashioned tank.) Thanks, Matt.