You should listen to me. No, seriously, listen to me.
Join Date: Oct 2008
Location: Santa Barbara
Motorcycle: Blue 2006 GSX-R1000
Re: Bike wont reach operating temp in cold weather
That sounds more like a thermostat (or no-thermostat) problem. I'd expect blocking to be appropriate at lower temps. The temp should stabilize at at least 160 °F and even that is low. The thermostat operating temp is 180 °F. If you pay attention during warmup, you should see the temp run up into the 180's, then quickly drop down into the 160's as the thermostat opens, then rise again as things stabilize. It's not easy on a motorcycle because things are so tightly packed, but if you can get your hands on the radiator inlet hose, it should stay cold until the thermostat opens and then warm up fairly abruptly. If it continuously warms up, the thermostat is missing or stuck open.
Extended operation at low temps will promote sludge buildup in the oil due to moisture in the blowby not evaporating.