2010-2011 Yamaha RS Vector / RS Venture Service Manual, Page 263Get this manual

2010-2011 Yamaha RS Vector / RS Venture Service Manual, Page 263

VALVES AND VALVE SPRINGS 10.Lap: Valve face Valve seat TIP After replacing the cylinder head or replacing the valves and
then clean off all of the lapping compoundTIP For the best lapping results, lightly tap the valve seat while rotating the
valve back and forth between your hands Apply fine lapping compound to the valve face and repeat the above steps After every
lapping procedure, be sure to clean off all of the lapping compound from the valve face and valve seat Apply Mechanic's blueing
dye (Dykem) onto the valve face Install the valve into the cylinder head Press the valve through the valve guide and onto