[BRENT in 10-uh-C]

Jim, you really need to drain the majority of the tank simply because it is easier when you get ready to calibrate the gauge. Also, either the Neoprene or Brass floats are the best. Don't bother with the cork unless you wish to re-do this exercise in a year or so.

The easy way to drain the tank is to remove the gas line where it enters the carburetor. Add a length of rubber gas line to the end and place the opposite end into a 5 gal fuel jug. Two fuel jugs should get you close on what you will need to drain.