Honda 2010 CBX 250 Workshop Manual page 108

CBX250
It recommends the use of strawberries / rectifiers spe-
cific to valve seats, for the correction of seats worn.
The Rectification of the seat of the valve with a
strawberry 45° always to replace the guide. In the
event that the surface of contact is too high, use a
strawberry flat 32TH to lower the seat. In the event
that the surface of contact is too low, use a strawberry
internal 60TH to raise the seat. Using a strawberry
finished 45TH rectification of the seat of agreement
with the specifications. Using a strawberry 45° remove
any roughness or irregularities of the seat of the valve.
Special tool:
Strawberry seat of valves,
27,5 mm (45º ADM)
Strawberry seat of valves,
24 mm (45º ESC)
Support for strawberry, 4,5 mm
Using a strawberry flat 32 degrees remove 1/4 of
existing material in the seat of the valve.
Special tool:
Fresa plana, 27 mm (32º ADM)
Fresa plana, 24 mm (32º ESC)
Soporte de fresa, 4,5 mm
Using a strawberry internal 60° remove 1/4 of existing
material in the seat of the valve.
Special tool:
Fresa interna, 37,5 mm (60º ADM)
Fresa interna, 26 mm (60º ESC)
Soporte de fresa, 4,5 mm
CONTACT SURFACE TOO
HIGH
CONTACT
SURFACE TOO
LOW
07780–0010200
07780–0010600
07781–0010600
07780–0013300
07780–1250000
07781–0010600
07780–0014100
07780–0014500
07781–0010600
CYLINDER HEAD/VALVES
Previous
WIDTH OF
THE SEAT
32°
Previous
WIDTH OF
THE SEAT
60°
RIDGED
Previous WIDTH
OF THE SEAT
32°
Previous WIDTH
OF THE SEAT
60°