2006 Honda TRX680 Rincon Factory Service Manual, Page 55Get this manual
TECHNICAL FEATURES 1st gear and Reverse gear Gear position 1stReverse (idling) 1stReverse (riding) AT Clutch PC Solenoid ON OFF Shift Solenoid OFF ON OFF ON 1st "Engaged" "Engaged" Shift Clutch 2nd 3rd -
The hydraulic passage is connected to supply hydraulic oil to the 1st shift clutch, and the clutch is engagedOil is supplied by way of: AT clutch PC solenoid valve 1-2 Shift valve = 1st Shift clutch(Oil is drained by way of: 2nd Shift clutch 2-3 Shift valve = 1-2 Shift valve 3rd Shift clutch d 2-3 Shift valve) At idling, the AT clutch PC solenoid valve is on (valve closed) to eliminate vehicle creepAt start up, the AT clutch PC solenoid valve controls the clutch hydraulic pressure to the linear valve according to the signal from the PCMAt riding, the AT clutch PC solenoid valve is off (valve open) supplying sufficient hydraulic oil to the shift clutchControl of the hydraulic passage during driving in Reverse gear is the sameHowever, the vehicle can be driven only in the 1st-hold mode (no shift)3rd SHIFT CLUTCH 2nd SHIFT CLUTCH 3rd ORIFICE CONTROL VALVE1st SHIFT CLUTCH 2nd ORIFICE CONTROL VALVE