Hisun HS700UTV-4, Maintenance Handbook

Page: 163 / 388

ENGINE
- 150 -
1 NOTE :
After every lapping operation be sure to
clean off all of the compound from the valve
face and valve seat.
e. Install the valve into the cylinder head.
g. Press the valve through the valve guide and
onto the valve seat to make a clear pattern.
h. Measure the valve seat width again. If the
valve seat width is out of specification, reface
and relapse the valve seat.
3 、 INSTALL:
1). Apply:
• molybdenum disulfide oil
(onto the valve stem and valve stem seal)
2). Install:
• valve spring seats
• valve stem seals
• valves
• valve springs
• valve spring retainers
1 NOTE
:
Install the valve springs with the larger pitch
(a) facing upwards.
(b) Smaller pitch
• valve cotters
1 NOTE
:
Install the valve cotters while compressing
the valve spring with the valve spring
compressor
①
and valve spring compressor
attachment
②
.
To secure the valve cotters onto the valve stem,
lightly tap the valve tip with a piece of wood.
CAUTION:
Hitting the valve tip with excessive force
could damage the valve.