Yamaha Oil Warning Unit 7VU-85690-01-00. Overview. The Yamaha Oil Warning Unit 7VU-85690-01-00 is a genuine original equipment manufacturer component designed to monitor oil conditions and alert operators to potential issues. This unit plays a critical role in protecting your engine by detecting abnormal oil levels or pressure and triggering warnings to prevent damage.. Built to Yamaha's exact specifications, this oil warning unit ensures accurate monitoring and dependable performance. It is an