2007-2009 Suzuki LTZ90 factory service manual, Page 65Get this manual

2007-2009 Suzuki LTZ90 factory service manual, Page 65

Remove the oil seal Remove the other valves in the same manner as described previously CYLINDER HEAD DISTORTION Decarbonize
VALVE FACE WEAR The thickness of the valve face decreases as the face wearsVisually inspect each valve face for wear and
replace any valve with an abnormally worn faceMeasure the valve face thickness T, if it is out of specification, replace
the valve with new oneValve head thickness T: Service Limit: 0.5 mm (0.02 in) 09900-20101: Vernier calipers VALVE STEM RUNOUT
Support the valve using V-blocks and check its runout using the dial gauge as shownIf the runout exceeds the service limit,