[Danr55]

Ron, There are lots of reasons why a fuel gage won't work. The first one I think of is the reason mine has never worked right. The gage and the sender have to operate at the same ohmage. That is the resisitance created by a full tank has to be compatible with the resistance rating of the gage. If, as in my case, you have a US built sending unit in the fuel tank and a British built gage in the dash board, you'll never get the two to be compatable because they operate on a different resistance. So ignore the fuel gage and set the trip odometer each time you fuel. That's what I've done and it works fine. As for the hesitation, ... it's pretty normal for an engine to hesitate when it's cold or using fuel that is under rated for the compression of the engine. What is the compression ratio for your motor?