SECTION 4. DISASSEMBLY AND SERVICE
4-4-2 Cylinder Head / Valves
a. DISASSEMBLY/ REASSEMBLY
CYLINDER HEAD
REASSEMBLY:
Before installation, remove carbon deposits
from the combustion chamber and inspect
the valve seats’ tightness.
Measure the compression of the cylinder
head after reassembly.
CYLINDER
HEAD
GASKET
CRANKCASE
CYLINDER HEAD
BOLT M6×50(4)
REMOVAL/ INSTALLATION:
Loosen and tighten the bolts in a
crisscross pattern.
Torque:8-12 N·m
STUD BOLT (IN)
STUD BOLT
(EX)
SHROUD
COMPONENT
BOLT M6×14 (4)
REMOVAL/ INSTALLATION:
Loosen and tighten the bolts
in a crisscross pattern.
Torque: 8-12 N·m
CYLINDER HEAD
COVER PACKING
CYLINDER
HEAD COVER
BREATHER TUBE
REMOVAL/ INSTALLATION:
Connect one end to cylinder
head cover, the other end to
breather chamber cap’s
vertical-up vent.
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