2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 547Get this manual
LIGHTSMETERSSWITCHES Turn the ignit ion switch ON and check th fuel
gaugeAll seg ments should bli nkTu rn he ignition swi tch OFFConnect th eter side connecto terminals with
FA model:
FGA od el :
jumper ireTurn [he ignition sw itch ON and check he fuel
gaugeA ll segments sho ul blinkIf he fu el gauge does not fu nct ion properly, replace the co mbi nation et er (page 23-9)
EI::JU lI r-1d "
Turn the ignit ion switch OFFRemove he fuel ank cover (p age 3-5)