^^Yeah, run Amsoil! Or a better oil, we saw dramatic clutch temp drops running Amsoil though. Another thing, Al Bakers XR's only makes a big fin kit where you send your cylinder in and they will weld on longer fins. Other than that, it's just the nature of the beast with a big, air cooled thumper! Baker also sells a thermometer dipstick to keep an eye on oil temps, good cheap insurance. A Cyra fender with the vent holes in the back helps a bit too.