MODIFIED GAS TANK WITH BUILT-IN FUEL PUMP WITH INTERNAL REGULATOR ADAPTED FOR UTILITY, OFF-ROAD, AND ALL-TERRAIN VEHICLES AND A METHOD OF INSTALLING THE SAME

A modified fuel tank for utility, off-road and all-terrain vehicles. The modified fuel tank has a built-up first side and a thinner second side, wherein a modified opening is formed through a portion of both. A modified insert is dimensioned and adapted to engage the periphery of the modified opening through a sidewall including a curved portion and a tapered portion to accommodate the transition between the first side and the second side. A pump assembly with a built-in regulator is supported by the modified insert, by way of a retaining lip and a seal and retaining ring, so that the pump assembly is fluidly coupled to the fuel compartment of the modified fuel tank, and an outlet protrudes just above the modified insert.