Hi Jack, i believe that document refers to the newest power torque 2/eco torque engines. I have a couple here they have the revised cooling fins and extra webbing and run cooler despite being leaner.

Dieselboy it's hard to say these motors do get bloody hot, i only its too hot by the fact the cowling was melting above the muffler. Whether the engine itself is running hot or just the muffler is getting really hot, i'm unsure. Gonna try another muffler again and see how we go.