Fuel gauge for G2160

[jlangton]

After looking at the GR2100,I noticed that it had a fuel gauge on the RH rear fender,and the G2160 does not. Does anybody have the parts diagram or the schematic to compare the fual tank and gauge assembly to the G2160 fuel tank?
I'd like to have a quick reference to the fuel level vs just relying on the low fuel indicator.
JL