Hot Hot Heat

[ClassicVW_imp]

While I can't speak directly to the CB1100 since I don't own one yet... I can say that when it's over 90 degrees here I feel the heat coming off of any bike that I ride unless it's my little 400 Twin. I think it's any larger displacement engine will throw heat off toward the rider. I feel it only a little on my legs but not to the point where my skin gets red. But I do always wear either Kevlar reinforced pants or a riding suit. I don't think your bike is cooking the gas in the tank, it's more likely that the heat is rising from the engine and flowing around the outside of the tank, making it seem to you that the tank and it's contents are heated.

Just my thoughts.