DAELIM S2 125

9-10
CYLINDER HEAD / VALVE
55°
45°
SEAT WIDTH
37°
CONTACT TOO HIGH
OLD SEAT
WIDTH
55°
CONTACT TOO LOW
OLD SEAT
WIDTH
● Using a 55 degree cutter, remove the bottom ¼ of
the old seat.
● If the contact area is too low on the valve, the seat
must be raised using a 55 degree inner cutter.
Refinish the seat to specifications, using a 45 degree
finish cutter.
● If the contact area is too high on the valve, the seat
must be lowered using a 37 degree flat cutter.
Refinish the seat to specifications, using a 45 degree
finish cutter.
● Using a 45 degree cutter, cut the seat to the proper
width.