regmudd,
The fuel gauge has been modified to work on a different volatge (12) but the resistance parameters are the same...0 to 30 ohms. Jim Carter has the matched sending units for the gauge as do many of the specialty suppliers. You just have to make sure it will fit into your 'Yogi' tank.
All the vendor has to know is that it's a sender out of an old Chevrolet truck...he should know it's a 0-30 unit.
You probably will not find something like this in a 'universal' configuration at your local auto part store. 0-90 is the common critter.
Stuart