The one I have now on the bike had the fine wire from the windings broken just where it's soldered on to the contact that goes thru the unit to the outside, a bit of a bodgie fix I did was to solder a bit of thicker copper wire onto the contact and make a bit of a "pig tail" on the other end by wrapping it around a pin, slide that fine wire into it and solder it in place, the fine wire from the winding was too small to solder, so I did my usual backyard fix, ok the resistance will be out but heck it works, may not be exactly accurate but I never get below a half tank anyway, cheers Pete