HER CHEE ATV-320 S Service Manual page 24

Chapter 1 Engine, Transmission & Gear
NOTE
。If the stem-to guide clearance exceeds the
service limits, determine if a new guide with
standard dimensions would bring the
clearance within tolerance. If so, replace any
guide as necessary and to fit.
If the stem-to-guide clearance exceeds the
service limits with new guide, replace the valve
also.
NOTE
。Reface the valve seats whenever the valve
guide are replace.
CYLINDER HEAD ASSEMBLY
Lubricate each valve stem with oil then insert the
valves into the valve guides.
Install new valve stem seals.
Install the valve spring seat, springs and
retainers.
The springs' tightly wound coils should face in
toward the combustion chamber.
NOTE
。There has paint marked on springs loosely
wound coils both inner and outer springs.
Compress the valve springs using the valve
spring compressor, then install the valve cotters.
Valve stem seal
I-15