2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 549Get this manual
LIGHTSMETERSSWITCHES Measure the fuel level sensor resistance with the
float at the top (FULL) and bottom (RESERVEl post-
tionsFLOAT POSITION TOP (FULL) BOTTOM (RESERVE) RESISTANCE (20eC68)
TOP (FULLI
(RESERVE)
TEMPERATURE INDICATOR! TEMPERATURE SENSOR
SYSTEM INSPECTION
The coolantengine oil temperature indicator ,
should come on for few seconds when the igniFGA model shown: