Gotta get this sorted out!

Well today I finished running the return using my factory 5/16 line and added an aluminized heat sheath over my 3/8 feed line...all was going pretty good until I was about to pull out and noticed a nice puddle of fuel forming in front of my rear tire. Pinhole or tiny crack in the old line. I disconnected it, plugged the tank and filter barbs, and was gonna go test run to see if the heat shield made any difference, until I realized I didn't have much fuel and didn't want to add any until I'm done messing with the lines and tank.