Running alittle hot?

[CMAC]

This was the first reel weekend i rode since new coolhead and fluidyne rad. 21cc domes at1200 feet was about 158 on the comp tester. Running 50-50 110-93. It takes awhile to warm up. when i got around town and was running alittle slower it would climb to 200-225 on the ESR temp guage. when i would get back out on the trail it would come back down to around 180. After two long days of riding my overflow is almost empty. The jetting isnt lean if any thing in alittle rich,especially on the bottom. I checked severall times and the plugs were alittle wet. Would running race gas to rich cause it to heat up like that?

[BenBB]

Way rich, race gas or not, it'll get hot. 180 is perfect though, 200 is ok and to be expected in slow speeds without having any kind of fan to move air over the radiator. I wouldn't worry about the overflow bottle, it's just a catch can and routinely drains itself due to its location; as long as the radiator is still full you're good to go. If jetting a little leaner doesn't change anything you might consider Water Wetter or other such product, it works.

[Snopczynski]

At 158 psi you dont even need race gas, and you ought to be able to lean it out if the plugs are wet.