Honda CB900F 919 (2001) [211/432] Cylinder head valves

Honda CB900F 919 (2001) [211/432] Cylinder head valves
CYLINDER HEAD/VALVES
VALVE SEAT REFACING
Valve seat cutters/grinders or equivalent valve seat
refacing
equipmen
t are recommended to correct
worn valve seats.
CONTACT TOO HIGH
07780-0010200
07781
-0010600
or
equivalent
comme
r-
cially available
Follow the refac-
ing manufactur-
er's operating
instructions.
If the contact area is too high on the valve, the seat
must be lowered using a
32°flat cutter.
If the contact area is too low on the valve, the seat
must be raised using a
60
9
interior cutter.
Use a 45-degree cutter to remove any roughness or
irregularities from the seat.
TOOL
S:
Seat
cutter, 27.5 mm
(45·
IN/
EX)
Cutter
holder.
4.5
mm
OLD SEAT
~
~
/
~
I
DT
H
..
~
f"
32'
ROUGHNESS
Use a 32-degree cutter to remove the top 1/4 of the
existing valve seat material.
8-18
TOOLS:
Flat
cu
tt
er. 27
mm
(3 EX)
Flat
cutter.
30
mm
(32· IN)
Cutter
holder, 4.5
mm
07780
-0013300
07780
-0012
200
07781
-0010600
or
equivalent
commer
-
cially available
/,
OLD SEAT WIDTH
.
~
~
32
·/
~

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