Replacing your stat is not a big deal. Pull the fairing - front pieces around the forks and the lower and middle cowls on both sides. Drain the system - pull one of the big hoses off the radiator over a VERY LARGE funnel to catch most of your old aunt freeze. Thank you Larry for your suggestion to cut the bottom off an old plastic gallon jug (apple cider, milk, etc.). Regardless of what precautions you take, you will lubricate the floor with anti freeze, so it makes sense to spread newspapers around before you start. Remove the radiator - disconnect the fan wires at their connectors with a v. small screw driver, remove the radiator mounting bolts, and tilt it forward at the bottom in order to slip it off the hangers at the top. Almost there now. Remove the frame cross brace and you have access to the thermostat housing. I found it much much easier to do all this after removing the front wheel, but I think it is possible to do this work w/o pulling the wheel and servicing the front calipers. Your new stat goes in w/ the tiny hole at 12 o,clock. New o ring can be held in place w a dab or two of silcone paste/grease. Shop around for Honda Type 2 coolant at their auto dealerships. I found prices ranging from $20 to $30 a gallon.
Good Luck!
Good Luck!