I have a K-type thermocouple in the head where the OEM sensor would go (Head), one in the lower radiator hose (Rad-Out), and one in the oil pressure test port (Oil). There's also a thermocouple up on the fairing which reads the air temperature (Amb).
These are all wired into a four-channel data logger and I am taking the data every five seconds.
What I am interested in is what I can do with the oil temperature. I'd like to see it come up a bit, preferably to 225°F. So far my efforts have been a horrible and depressing failure. What I have done is fabricate some hard polyurethane foam insulators to wrap the sump. My hope was that I could bring the oil from ~200°F to 225°F. What I have seen, with not much testing under my belt, is that the increase in oil temperature could be explained away by the increase in ambient temperature.
What I am preliminarily led to suspect is that the KLR doesn't make enough horsepower to readily heat the oil to the temperature I want to see no matter what I do, absent high ambients (on the order of 100-115°F). It doesn't mean that it's all hopeless, though, as my scheme may well work at lower ambient temperatures to keep the oil from dropping into the day-old-coffee realm. At lower temperatures, especially in the wet, I have seen oil temperatures drop to 150-160°F. The greater Δt between the engine and the air may make the insulation idea effective. I might be happy with that if I could have 190°F oil at 40-50°F instead of lukewarm oil.
I have been working this project for about three months and haven't really accomplished diddly-shit. This is known as "Working at the speed of Tom". Projecting forward, I may have some idea what I am talking about in a year's time. It has been written up on my website as a read-along, but it's really nothing more than working notes.
That's the brief version. I didn't offer it up because it is really sorta off-topic. The cooling system data is a byproduct. I'm happy with the cooling system. Finally.