the fan has not kicked on yet. saturday was the first time i really got to ride it since i bought and rebuilt it. the bike has a cobra exhaust so i figured stepping up on the jets was appropriate. i do have the manual for it so i will check the oil temp sensor. however even when cold it takes more cranks than i like to start thats what made me believe it was a fuel problem. plus when it is idling if i hit the gas, it will die like the pilot jet can keep it running. the main jet has been bumped up. was that way when i got it i guess to compensate for the pipe.