Suzuki DF15 - Page 138

6-18 POWER UNIT
VALVE GUIDE REPLACEMENT

1. Drive valve guide out toward valve spring side.
 09916-44910: Valve guide remover/installer
NOTE:
Do not reuse valve guide once it has been removed.
Always use a new valve guide (oversize) when assembling.
2. Ream valve guide hole with  11 mm reamer to true hole
and remove burrs.
 09916-38210: Valve guide reamer ( 11 mm)
09916-34542: Valve guide reamer handle
NOTE:
Turn reamer clockwise, never counterclockwise.
3. Drive valve guide in from valve spring side to the specified
height.
 09916-44910: Valve guide Remover/installer
4. Measure valve guide protrusion H.
 09900-20102: Vernier calipers
Valve guide protrusion:
Standard: IN & EX 10.0 ± 0.5 mm (0.39 ± 0.02 in)
5. Ream valve guide bore with  5.5 mm reamer.
 09916-34550: Valve guide reamer ( 5.5 mm)
09916-34542: Valve guide reamer handle
NOTE:
Clean and oil the valve guide bore after reaming.
Be careful not to damage cylinder head when replac-
ing valve guide.