Honda CBR600F4i Series Service Manual page 257

CYLINDER HEAD/VALVES
VALVE GUIDE REPLACEMENT
Use curring oH on
rtie
rsamer durmg
rn,s
operittio:i
Chi ll the rep lacement valve yuitl11s in a freezer for
about a11 I,uu,.
Heat the r.ylinner head t o 100 - 1so·c (212 - 300°F)
with o hot plate or oven.
I
NOTICE
I
Do not use a torch to hP.11t the cylinder head:
it
may
cause warpage.
Suµpur l the cylinder head anrl rlrivP. out the valve
911irles trom combustion chomber side of the cylinder
head.
TOOL:
Valve guide driver
07JMD-KY20100
Drive in t he guide to t he spP.c:ifred depth from the top
of the cylinder heod.
SPECIFIED DEPTH:
IN: 16.1 - 16.4 mm (0.63 - 0.65 in)
EX: 14.3 - 14.6 mm (0.56 - 0.57 in)
TOOL:
Valve guide driver
07 JMD-KY20100
Let the cyl inder hearl r.onl to room temperature.
Ream the new valve yuitle after irrstallaliu11.
Insert the ream er from the comhustion r.hiimher side
of the head and also always rotote the reamer clock·
wise.
TOOL:
Valve guide reamer, 4.008 mm 07MMH-MV90100
Clean the cylinder head thoroug hly to remove any
metal particles.
Reface the valve seat (see the fu lluwirry prut:titlur.,.).
VALVE SEAT INSPECTION/REFACING
8-16
Clean the intake and exhaust vii lves thoroughly to
remove any carbon deposits.
Apply a light coat of Prussia n Blue to the
valve
seals.
Taµ the valves and seat s using a rubber hose or
iinothP.r h11nd-lappIng tool.
VALVE GUIDE REAMER