2004-2009 Suzuki LT-Z250 Service Manual, Page 66Get this manual

2004-2009 Suzuki LT-Z250 Service Manual, Page 66

VALVE STEM WEAR Measure the valve stem outside diameter with the micrometerIf the outside diameter is not within the specified
09916-44910: Valve guide removerinstaller NOTE:Discard the removed valve guide Only oversized valve guides are available
as replacement parts(Part No11115-05270) Re-finish the valve guide holes in the cylinder head with the valve guide reamer
and handle& 09916-34561: Valve guide reamer (11.3 mm) 09916-34542: Reamer handle Install ring onto each valve guideBe sure
to use new ringsOil the stem hole of each valve guide and drive the guide into the guide hole with the valve guide installer&