2006 Honda TRX680 Rincon Factory Service Manual, Page 205Get this manual
CYLINDER HEADVALVECAMSHAFT
SERVICE INFORMATION
GENERAL
This section covers service of the rocker arms, cylinder head, valves and camshaftThese services can be done with the engine installed in the frame When disassembling, mark and store the disassembled parts to ensure that they are reinstalled in their original locations Clean all disassembled parts with cleaning solvent and dry them by blowing them off with compressed air before inspection Rocker arm, valve and camshaft lubricating oil is fed through oil passages in the cylinder head and head coverClean the oil passages before assembling cylinder head and head cover Be careful not to damage the mating surfaces when removing the cylinder head cover and cylinder head
SPECIFICATIONS
ITEM Cylinder compression at 350 rpm (minValve clearance Valve, valve guide Valve stem O.DValve guide I.DStem-to-guide clearance Valve guide projection above cylinder head Valve seat width Free length Arm I.DShaft O.DArm-to-shaft clearance Cam lobe height STANDARD 550 kPa (5.6 kgfcm2, 80 psi) 0.15 (0.006) 0.33(0.013) 5.4755.490 (0.21560.2161) 5.4555.470 (0.21480.2154) 5.5005.512 (0.21650.2170) 0.0100.037 (0.00040.0015) 0.0300.057 (0.00120.0022) 14.8-15.2(0.58-0.60) 17.3-17.7(0.68-0.70) 1.0-1.1 (0.039-0.043) 37.20 (1.465) 44.20 (1.740) 12.00012.018 (0.47240.4731) 11.96411.984 (0.47100.4718) 0.0160.054 (0.00060.0021) 35.01535.175 (1.37851.3848) 35.39435.554 (1.39351.3998) 22.46722.482 (0.88450.8851) 22.51022.526 (0.88620.8868) 0.0280.059 (0.00110.0023) Unit: mm (in) SERVICE LIMIT 5.45(0.215) 5.43 (0.214) 5.53(0.218) 0.12 (0.005) 0.14(0.006) 1.4 (0.06) 36.3 (1.43) 43.1 (1.70) 12.05 (0.474) 11.92 (0.469) 0.08 (0.003) 34.840 (1.3717) 35.144(1.3824) 22.46 (0.884) 22.54 (0.887) 0.07 (0.003) 0.05 (0.002)