Honda VT750C2 Shadow Spirit Service Manual page 180

CYLINDER HEAD/VALVE
VALVE GUIDE
Ream the valve guide to remove any carbon build ­
up before measuring the guide I.D.
NOTE:
• Take care not to tilt or lean the reamer in the
guide while reaming. Otherwise, the valves
maybe installed slanted, causing oil leakage
from the stem seal and improper valve seat con ­
tact. This may prevent valve seat refacing.
• Insert the reamer from the combustion chamber
side of the head and always rotate the reamer
clockwise.
TOOLS:
Valve guide reamer
5.510 mm (IN/EX)
07984-2000001 or
07984-2000000
(U.S.A. only)
Measure each valve guide I.D. and record it.
SERVICE LIMITS: IN: 5.56 mm (0.219 in)
EX: 5.56 mm (0.219 in)
Subtract each valve stem O.D. from the correspond ­
ing guide I.D. to obtain the stem-to-guide clearance.
SERVICE LIMITS: IN: 0.10 mm (0.004 in)
EX: 0.11 mm (0.004 in)
If the stem-to-guide clearance exceeds the service
limit, determine if a new guide with standard
dimensions would bring the clearance within toler­
ance.
If so, replace any guides as necessary and ream to
fit.
If the stem-to-guide clearance exceeds the service
limit with a new guide, also replace the valve.
• • •
1IIt:
NOTE:
Inspect and reface the valve seats whenever the
valve guides are replaced (page 9-19).
CAM CHAIN GUIDE
Check the cam chain guide for wear or damage.
CAM CHAIN GUIDE
Replace the cam chain guide if necessary.
9-17