2007-2009 Kawasaki KFX50 service manual, Page 107Get this manual
7CYLINDER HEADVALVES SERVICE INFORMATION
GENERAL INSTRUCTIONS The cylinder head can be serviced with the engine installed in the frameWhen assembling, apply molybdenum disulfide grease or engine oil to the valve guide movable parts, valve arm and camshaft sliding surfaces for initial lubricationThe camshaft is lubricated by engine oil through the cylinder head engine oil passagesClean and unclog the oil passages before assembling the cylinder headAfter disassembly, clean the removed parts and dry them with compressed air before inspectionAfter removal, mark and arrange the removed parts in orderorder of removalSPECIFICATIONS Standard IN 0.04 (0.0016) Valve clearance (cold) EX 0.04 (0.0016) Cylinder head compression pressure 11701580 kPa (1216 kgfcm2, 170230 psi) (electric start) Cylinder head warpage IN 25.761 (1.03044) Camshaft cam height EX 25.563 (1.02252) Valve rocker arm to shaft clearance 0.0340.09 (0.001360.0036) Valve stem-to-guide IN 0.010.037 (0.00040.00148) clearance EX 0.0250.052 (0.0010.00208) Valve spring free length 35.25 (1.41) Valve spring compressed force 19.222 kg at 19.65 mm (0.786 in) Item When assembling, install them in the reverse mm (in) Service Limit