I have an 04 R1, its my daily driver. Recently Ive noticed that my temp guage will fluctuate in an implausible manner. 199 to 170, back up of 190s down to 150, up to 160 bck down ect, You get the idea. It might be a resistance issue. I replace the temp sensor with an after market on and after three days of working perfectly it started to do it again on a hot ride home. Bike never over heats but does get hot enough to turn on the fans since its 95 deg. Anyhow I though it might be something in the harness cause it would have been moved when I installed the sensor. I tried moving the wiring around when the engine was hot but could not really duplicate anything significant. Does anyone have any experience with this. I know that the signal goes straight to the ECU and the supply is tied in to a veriety of other sensors.