Yamaha - Thermosensor assy - 67F-85790-00-00Yamaha Thermosensor Assy Engine Monitoring Component 67F 85790 00 00 Overview When a Yamaha starts giving odd temperature readings or alarms that dont quite make sense, the thermosensor is usually worth checking. This part monitors engine temperature and sends that info to your gauges or warning system. Ive seen engines go into protection mode just because the sensor was off. When its working right, you get accurate readings and peace of mind while