2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 172Get this manual
FUEL SYSTEM (PGM-FI)
INSPECTION
The IACV is insta lle on the th rottle body and is ope rated by the step mo torWhen the ign ition
swi tch is tur ned ONthe lACY perat es lor few
secon ds Check th st ep motor operating (beep) sound ith
the ignition switch turned ONNOTE: Th IACV opera tion can be checked isually as fo llo ing :