Advise needed on auxiliary fuel tank install on a '16 Triumph 800 Tiger XRT. I am looking at installing a custom "tail dragger" tank (about 3-1/2 Gallons) mounted about where the license plate is, tucked in behind the rear wheel, to keep the center of gravity low. The auxiliary tank will be lower than the main tank so I believe it will require a fuel pump to transfer the fuel into the main tank. I would rather not drill the tank or fuel pump for a connection so I was thinking about transferring the fuel into the main tank through the overflow tube. Will this work? Any input and suggestions on plumbing the aux fuel tank would be greatly appreciated.