AV8R,
Sounds like we have the exact same problem. She'll run all day when I'm on the throttle, but once really warm (let's just say hot) as soon as I let off the throttle dead, and there is NO restarting her until she's ice cold again.
I'll let you know if they can figure out my problem and maybe we can help the two communicate with each other and get our rides back! It's not fair being in the 70's in January with no ride!