that is interesting because it says c10 on the fenders and dash, did not know that it was an r10. when i am messing with the switch in the dash i flipped it to the right hand tank and the gage will work, but when i switch it to the left hand tank the gage goes to the strait right position on the full side but i still do not hear the fuel pump running. i only have the left hand tank on it right now. not sure on exactly what is wrong with it, but it may be the valve so i will look into getting a new valve unless you guys think it is some thing else. i am up to suggestions. thanks in advance sam.