Linhai 2005 ATV 260, Service Manual

Page: 67 / 341

CHAPTER 3A ENGINE
260/ 300 cc ATV SERVICE MANUAL07.0
CHAPTER 3 ENGINE PAGE. 3A- 30
face and repeat the above steps.
NOTE:
Make sure to clean off all compound from the
valve face and valve seat after every lapping
operation.
z
Apply Mechanic’s blueing dye (Dykem)
○
b
to
the valve face.
z
Install the valve into the cylinder head.
z
Press the valve through the valve guide and
onto the valve seat to make a clear pattern.
z
Measure the valve seat with
○
c
again.
VALVES AND VALVE SPRINGS
INSTALLATION
1. Deburr:
z
Valve stem end
Use an oilstone to smooth the stem end.
2. Apply:
z
Molybdenum disulfide oil
(onto the valve stem
e
and oil seal
d
)
Molybdenum disulfide oil
3. Install:
z
Valve spring seat
c
z
Valve stem seal
d
NEW
z
Valve
e
(into the cylinder head)
z
Valve spring (under)
f
z
Valve spring (outer)
g
z
Spring retainer
h
NOTE:
Install the valve spring with the larger pitch
○
a
facing upwards.
○
b
Smaller pitch
4. Instal: