Quote Originally Posted by ths61 View Post
That is way cool. When you fill up, do you fill both tanks independently or just the back tank which fills the OEM tank in the process?
I fill them up independent of each other. I put a solenoid in between the 2 tanks that opens when I flip the fuel pump switch. Without it the pony tank would just gravity feed into the main tank and overfill it. I just wait for the fuel light to come on and then flip the switch. It takes about 5 min to transfer the contents and I don't have to stop to do it.