Suzuki DR-Z400S 2001 Service Manual page 68

VALVE GUIDE SERVICING
Drive the valve guide out toward the camshaft side using the
valve guide remover.
09916-44310: Valve guide remover/installer
NOTE:
Discard the removed valve guide.
Only oversized valve guides are available as replacement
parts.
Refinish the valve guide holes in the cylinder head using the
valve guide reamer and handle.
09916-34580: Valve guide reamer (10.8 mm)
09916-34542: Reamer handle
Oil the stem hole of each valve guide and drive the guide into
the guide hole using the valve guide installer and attachment.
09916-44310: Valve guide remover/installer
09916-53360: Valve guide installer attachment
Failure to oil the valve guide hole before driving the
new guide into place may result in a damaged guide or
head.
After fitting the valve guides, refinish their guiding bores with
the valve guide reamer. Be sure to clean and oil the guides
after reaming.
09916-34570: Valve guide reamer (5.0 mm)
09916-34542: Reamer handle
ENGINE 3-25