1998-2000 Yamaha WaveRunner GP800 Factory Service Manual, Page 160Get this manual
IELECII=-:J INDICATION SYSTEM
Oil level gauge 1Check: Oil level gauge Not operating Replace the multifunction meterChecking steps: Supply12 to the white four-pin connector (+: red, -: black) with remote battery or an AC adapter Disconnect the white two-pin connector (blue and black leads) Connect the blue and black terminals with ajumper lead CD Connect the green and red terminals with ajumper lead NOTE: When using remote battery, remove the jumper lead within 30 seconds after installation, then reinstall itIf thejumper lead is installed for more than 30 seconds, the display will automatically turn off