justjeff, you have a non-problem, IMHO!
Bike gets hot, fan comes on; bike cools down, fan turns off. I believe your cooling system works well within the range of safe operation; wouldn't mess with my own under those parameters.
But, your bike. And, I'll defer to more experienced, intelligent, and wiser posters.
Tson, to check your fan CIRCUITRY, short across your thermal switch terminals; this shunt should activate your fan (GENERATION 2 fan test procedure ONLY).
Not to put too fine a point on things; Generation 1 fan can be tested by grounding thermal switch lead, activating fan relay and in turn, fan. Generation 2 don't have no stinkin' fan relay; full fan current is carried through thermal switch (thingie in radiator); thus--a shunt (15 amp capacity) across the Generation 2 thermal switch terminals is required to activate the fan for test.