Fuel leaks out of vent!

[BigJohn]

I found that if I fill both tanks completly full that i could get some overflow through one of the vent tubes early in the flight especially in slipping right away or steep bank turns for an extended time, also I would get cross feeding throught the vent line and header tank between tanks if I parked on a slope, So I put in individual shut off valves on each tank that I can reach while in flight and if parking on a slope or as needed I would shut off the valve on my left tank which did not have the vent line back to the header tank in it, Solved the problem. I would note that everyone should make sure that they are using the new fuel sight tubes that Kitfox has, The onld one's with the compression fitting will eventually leak and I found at one point I thought my vent tube was leaking fuel and it was the fuel sight tubes, Landed and fixed immediatly and then replaced.

[redbowen]

I have found the best way to remove 100LL blue stains is with 100LL. The dye dissolves very easily with gasoline. Then use your cleaning solvent on the area to clean the fuel.