Re: COOLLING STUMPED!!
Here's a new twist. On way back from testing ride stopped at store..ambient temp was 70s. Ten minutes later started the bike, indicated temp was 106. It came down to more realistic 70s about a minute into the ride. Not sure if this is all related to the current issue.
Sounds like she's running hot.
Yes, the Vent is mentioned in the service manual, and yes, it is very important to which way it is installed.
Your T-stat was frozen big time by the photo (common)
If it were in my garage, here's what I would do to verify and for peace of mind.
Remove the tupperware again, remove the radiator hoses (Large ones) drain radiator, place towel over rear fender to protect it,
Then remove the (2) small 8mm bolts at the bottom of the radiator, and the one at the top and gently lean the entire unit forward (on towel)
to get to the T-stat housing again. Remove cover and verify the vent is at top of housing.
Now with the two large hoses off, take a scotch bright pad and scrape all the black paint off the pipes where the hoses fit onto, both inside and out!
Flush it out one more time, and put it all back together.
Fill the radiator up to the neck, start the bike and wait for (3) bars, now lay a rag across the open cap fitting and snap the throttle several times.
Your watching for foam and air to be expelled, when you can snap it quickly, and not alot of bubbles appear, simply top it off and close it up.
Be sure to check the over flow line for obstructions, and the plastic t fitting behind the cap (they crack alot).
Please feel free to PM me if you need further assistance.
Igofar
open in boiling water and 
closed in ambient temp. Will reinstall, flush radiator and try again. If this fails all bets will be on the ECT unless anyone has any ideas.
