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ENGINE
4. Install
Valve lock
When install the valve lock, compress the valve spring
with the valve spring compressed tool.
Valve spring compressed tool
Note
Engine assembly and valve adjustment
1. Eliminate burr
Valve stem end
Polish valve stem end with oilstone
2. Smear
Molybdenum sulfide base lubricant
(Smear it on the valve stem and valve oil seal)
Four stroke engine oil
(Smear on the valve stem top)
3. Install
Valve spring seat
Valve oil seal
Valve
Valve spring
Valve upper seat
Upturn the side to make the spring pitch big, install
the valve spring.
is small pitch.
Note
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