My temp gauge was acting fine.....bike was running in the first third of the gauge all the time , even just sitting idling. Then I flushed and changed the antifreeze...about two weeks went by and still everything was fine. Then one day the gauge was rising higher into the red almost for no reason. Even on the highway, in the cool of the day almost red. I never see the fan go on and it has no rhyme or reason for it. Any ideas? If it's the sender for the gauge, does anyone know of another application , like a car that works that's much cheaper? Thanks in advance! Joe