2006 Honda TRX680 Rincon Factory Service Manual, Page 295Get this manual
DRIVETRAIN SYSTEM Remove the sealing bolts and washers on the bottom of the shift valve body
Connect the oil pressure gauge and adapter to each inspection hole (hole threads; M8 1.25)TOOLS: Pressure gauge set 07406-0020005 or Oil pressure gauge 0-160 psi 07ZMJ-HN2A100 and Adapter, banjo 1.25 mm 07AMJ-HN8A100 (U.S.Aonly) Start the engine and check the oil pressure as followsFor line pressure: Shift the sub-transmission into Neutral (set the selector lever in center position) and measure the oil pressureLINE OIL PRESSURE (80C176F): 785 kPa (8.0 kgfcm2,114 psi) at 5,000 rpm (min ') For 1st, 2nd and 3rd Shift the sub-transmission in Drive position with the clutch pressure: mode select switch at "ESP"Shift to the respective transmission position (1st, 2nd and 3rd) with the ESP shift switch and measure the each clutch oil pressureSHIFT CLUTCH OIL PRESSURE (80C176F): 1st, 2nd, 3rd: 785 kPa (8.0 kgfcm2,114 psi) at 5,000 rpm (min ') Stop the engine