My 131 is not fully broke in but it does seem to run Hot and the outside temp is only in the low 80's. It is a Twin Cooled and the fans come on rather quickly. You can definitely feel the heat. I do not know about how long these motors last but you do not have to run it hard to go fast. The low end power is amazing and while I have only turned it loose a couple of times it makes power all the way to the rev limiter which is about 6,400.
I am using the SE street tuner and auto tune. When the HD tech connected the bike to the laptop we noticed there are cells in the low RPM range with retarded timing that can be changed. Since the motor was new and we only made 2 dyno pulls as a shakedown we did not change them. I suspect changing these from the -4 to a 1-2 advance would help with heat at idle.
My dyno chart is posted in this thread.