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I have had a problem with my 2005 Honda ST1300 since the middle of last winter. One day, I noticed that it did not warm up as quickly as it normally does. From there, things got interesting. After hundreds of miles of riding, I realized that the engine temperature was directly proportional to the outside air temperature. On a cold day, the coolant-temp gauge would never read more than one bar. On a really cold day, it would not show any bars at all. During the summer it seemed to be fine, going to three bars on the gauge and staying there. After investigating further, I think the thermostat is stuck in the open position. Two different Honda dealers have checked the bike, and neither could duplicate the problem. I know it hasn't gone away because of the extended time the bike spends warming up at fast idle, so I'm wasting fuel. It's still under warranty until September of 2009. Can you help?