1998-2004 Honda Foreman 450 factory service manual, Page 411Get this manual
Suspend the oil temperature sensor in heated engine oil to check its operationDo not let the thermometer or sensor touch the pan, or false readings will resultConnect ohmmeter probes across the terminals of the sensor and measure the resistanceReplace the sensor if the readings are out of the ranges as shownTemperature Resistance 150'C (302' F) 306340 170' (338F) 209231Q
THERMOMETER
ENGINE OIL
INSTALLATION
Install the oil thermo sensor in the rear crankcase and tighten it to the specified torqueTORQUE: 18 N'm (1.8 kgfm, 13 Ibfoftl Connect the sensor ireFi ll the crankcase with the recommended oil (page 3-9)