over heating

[garyft]

Wing_man, often a bad water pump will leak oil or coolant through the weep hole. It's a small hole just behind where the lower radiator hose connects, located right on the bottom of the engine.

[neoracer]

riding below 35-40 tends to promote overheating depending on ambient air temps but if you have replaced the thermo,fan works correctly etc could also be a sign that your radiator is possibly clogged

its also possible that the temp sensor isn't correct also

[SIR tricky]

You can test what the exact temperature is with this creature on sale at Harbour Freight <!-- m --><a class="postlink" href="http://www.harborfreight.com/hand-tools/thermometers/infrared-thermometer-93984.html">http://www.harborfreight.com/hand-tools ... 93984.html</a><!-- m -->

[bs175dths]

Fluid out the weep hole can also be an indication.
Overheating can be all the usual suspects, old/low coolant level, old coolant hoses, defective thermostat, defective fan switch, defective water pump, defective water jacket gaskets.

Good Luck.