Honda VTR1000F Service Manual page 138

CYLINDER HEAD/VALVE
8-14
REFACING
NOTE:
• Follow the refacing manufacturer's operating in-
structions.
• Be careful not to grind the seat more than neces-
sary.
If the contact area is too high on the valve, the seat
must be lowered using a 32
0
flat cutter.
If the contact area is too low on the valve, the seat
must be raised using a 60
0
interior cutter.
Using a 45
0
seat cutter, remove any roughness or
irregularities from the seat.
TOOLS:
Seat cutter, 40 mm
Cutter holder, 6 mm
07780-0010500
07VMH-MBB0100
Using a 32
0
flat cutter, remove 1/4 of the existing
valve seat material.
TOOLS:
Flat cutter, 38.5 mm (IN)
Flat cutter, 35 mm (EX)
Cutter holder, 6 mm
07780-0012400
07780-0012300
07VMH-MBB0100
r-\------7})
45"
~l------;;;h
3'"
CONTACT TOO HIGH
~
..
------'
CONTACT TOO LOW
~ ..
---~:-'
OLD SEAT WIDTH