Hello Joe,
Thank you for the inquiry. The Big Dog speedometer was designed for an OE application under contract with Big Dog. As per our OEM contracts, they would be responsible for service and repair. Unfortunately because of this, there are no repairs that we can do for your gauge. The Big Dog speedometer used specific parts that are not used in other gauges. Because of this, the Big Dog speedometer is not serviceable. I apologize for the inconvenience.
I have had some feedback about odometer button replacements for the OEM speedometer that was made for Big Dog. The button that was used on the BD speedos is no longer used in our products. Our current speedometers use a button that is sonically welded to the lens.
Due to the overwhelming demand for a replacement button, but lack of direct replacements, we have put together a quick and simple write up for installing a Pro-Cycle speedometer in place of the OEM BD speedo. I have attached the write up to this email. Let me know if I can assist you with anything else.
Thank you,
Kevin
Tech/Service