2006 Honda TRX680 Rincon Factory Service Manual, Page 548Get this manual
LIGHTSMETERSSWITCHES Move the float to the bottom (RESERVE) position, turn the ignition switch to ON and check the fuel gaugeSegment "E" and low fuel indicator should blinkIf the fuel gauge does not function properly, check the fuel level sensor (page 23-12)If the fuel level sensor is OK, replace the combination meterIf all segments blink during inspection, replace the combination meterTurn the ignition switch OFFSEGMENT "E" Install new seal rubber onto the fuel level sensorInstall the retainer plate onto the sensor by aligning the tab with the grooveFA model: LOW FUEL INDICATOR FGA model: