Honda V65 Magna-VF1100C 1983 Shop Manual page 152

CYLINDER HEAD/ VALVE
VALVE SEAT INSPECTION /
REF ACING
Clean all intake and exhaust valves thoroughly to
remove carbon deposits.
Apply a light coating of valve lapping compound
to each valve face. Lap each valve and seat using
a rubber hose or other hand -lapping tool.
NOTE:
Take care not to allow the compound to enter
between the valve stem and guide. After lap-
ping, wash out the compound completely
and apply a coat of engine oil to the valve
face and seat.
Remove the valve and inspect the face.
CAUTION:
The valves cannot be ground. If the valve
face is rough, worn unevenly, or contacts the
seat improperly, the valve must be replaced.
lnseect the valve seat.
If the seat is too wide , too narrow, or has low spots,
the seat must be ground.
NOTE:
Follow the refacer manufacturer's operating
instructions.
After cutting the seat, apply lapping compound
to the valve face, and lap the valve using light
pressure.
After lapping, wash any residual compound off the
cylinder head and valve. •
IN : CUTTER
(30
mm</l)
EX: CUTTER
(25
mm</J)
10-14
IN, EX: CUTTER
(30
mm</l)
SEAT WIDTH:
0.99-1.27
mm
(0.039-0.050
in)
SERVICE LIMIT:
1.5
mm
(0.06
in)
IN: CUT'TER
(29
mm</l)
EX: CUTTER
(24.5
mm</J)