Kawasaki 27HP, Runs Hot

[falcon17ja]

I have a 27HP Kawasaki, Liquid Coooled Engine on my Turf Tiger.
The temp guages steadily creeps up to hot after normal mowing.
I have the radiator installed behind my seat, and obviously it collects clippings.
Has anyone heard/seen any ideas to cool these things down some?

Thanks,

John
Okeechobee, FL