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HRS216PKA • HRS216SKA • HRS216VKA
4. VALVES
DISASSEMBLY/REASSEMBLY
VALVE SPRING RETAINER (2)
DISASSEMBLY:
Push down and slide the
retainer to the side, so the
valve stem slips through the
hole at the side of the
retainer.
Do not remove the valve
spring retainer while the piston
is installed, or the valves will
drop into the
cylinder.
VALVE GUIDE
P. 9-20
INSPECTION:
EXHAUST VALVE
REASSEMBLY:
Before installation,
remove carbon deposits
and inspect the valve.
P. 9-20
INSPECTION:
CAM PULLEY/CRANKSHAFT/PISTON/
CYLINDER BLOCK
VALVE SPRING (2)
P. 9-19
INSPECTION:
VALVE STEM SEAL
SPARK PLUG
P. 3-8
INSPECTION:
Standard spark plug:
BPR5ES (NGK)
CYLINDER BLOCK
P. 9-10
CLEANING:
INTAKE VALVE
REASSEMBLY:
Do not interchange with the
exhaust valve.
VALVE HEAD DIAMETER
IN: 25 mm (0.98 in)
EX: 24 mm (0.94 in)
P. 9-20
INSPECTION:
9-9
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