Does anyone know how the gas tank is configured. I have need to drain the tank. I attached a fuel hose to the output side of the fuel filter and put a jumper wire across the fuel pump relay socket. It pumped 4-5 gallons and stopped pumping. Guage showed 3/4 full. I initially thought strainer in tank was plugged. I tried blowing back thru it and it was not plugged. I was able to remove the strainer with no loss of fuel and it was fine. Put it all back together and put 1/2 gal back in the tank and it started and ran ok. Thinking I had actually emptied the tank, and the gage was wrong I filled it and it only took 5-6 gal!

This leads me to the conclusion that there must be some baffle in the tank, possibly a safety feature. How does the gas get by this in normal driving? Any comments will be appreciated!