2002-2007 Suzuki 500 LTA Service Manual, Page 71Get this manual
VALVE STEM DEFLECTION Lift the valve about 10 mm (0.39 in) from the valve seatMeasure the valve stem deflection in two directions, "X" and "Y", perpendicular to each other, by positioning the dial gauge as shownIf the deflection measured exceeds the limit, (see below) then determine whether the valve or the guide should be replaced with new oneValve stem deflection (INEX) Service Limit: 0.35 mm (0.14 in) 09900-20606: Dial gauge (1100 mm) 09900-20701: Magnetic stand VALVE STEM WEAR If the valve stem is worn down to the limit, as measured with micrometer, where the clearance is found to be in excess of the limit indicated replace the valve, if the stem is within the limit, then replace the guideAfter replacing valve or guide, be sure to re-check the clearanceValve stem O.DStandard (IN)4.975 4.990 mm (0.1959 0.1965 in) (EX)4.955 4.970 mm (0.1951 0.1957 in) 09900-20205: Micrometer (0 25 mm) VALVE GUIDE SERVICING Using the valve guide remover, drive the valve guide out toward the intake or exhaust rocker arm side09916-44310: Valve guide removerinstaller