Valve Seat Inspection/Refacing; Valve Seat Cutters - Honda 86-87 TA200 FATCAT Service Manual

Ream the new valve guide after installation.
TOOL:
Valve guide reamer
07984 - 2000000
NOTE
Use c u tting oil on the reamer during this operation.
Always rotate the reamer clock wise, never counter-
clockwise.
Clean t he cylinder head thoroughly to remove any metal parti·
cles.
Aefaee the valve seat .
VALVE SEAT INSPECTION I REFACI NG
Clean the intake and exhaust valves thoroughly to remove
carbon deposits.
Apply a light coating of Prussian Blue to the valve seats. Lap
the valves and seats using a rubber hose or other hand-lapping
tool.
Remove the tool and inspect the width of each valve seat.
STAN DARD: 1. 1
mm
(0.043
in)
SERVICE LIMIT: 1.4
mm
(0 .055
in)
If the seat is too wide, too narrow or has low spots, the seat
must be ground.
CAU TION
The voh·es cOllnor be groUlld. Ij a vah·e jace is burned or badly
worn or
if
it COl1laClS the seat ulle~·ellly, replace the rall'e.
VALVE SEAT CUTTERS
Honda Valve Seat Cutters, a grinder or e rquivalent vlave seat
rei acing equipment are recommended
to
correct a worn valve
seat.
NOTE
Follow the reface r manufacturer's operating instructions.
CYLINDER HEAD/VALVES
(1 )
VAL VE GU IDE REAMER
;=~~~~~~i~\(l )
SEAT WIDTH
[
"' "
6-9