Honda Motorcycle Service Manual page 151

CYLINDER HEAD
Using a 32 degree cutter, remove 114 of the existing valve seat
material.
Using a 45 degree cutter, remove any roughness or ir-
regularities from the seat.
Using a 60 degree cutter, remove the bottom 114 of the old
seat.
ROUGHNESS
Using a 45 degree cutter, cut the seat to the proper width.
I
Date of Issue: March,
1995
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HONDA MOTOR CO.,LTD.
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