Fuel sender basic testing?

[mwalsh]

Can one short the fuel sender wiring to ground and have the gas gauge read full? The is the way I would normally go about initial testing for a bad sending unit on my other old cars.

I don't have a manual for this car yet, but I assume the tank is under the compartment for the soft top and the fuel gauge sender can be reached and removed from in there once the hard top is off and the soft top is out of the way?