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1.
Make sure that the jet valve slides smoothly in the jet body
and has no play.
CAUTION
Combination of the jet valve and jet body should not be
distrubed and the jet valve and jet body should be replaced
as an assembly.
2.
Check the valve head and valve seat for damage or seizure.
3.
Check the spring for sag, cracks or breakage.
Standard value
Jet valve
Length
97.53 mm (3.840 in.)
Stem 0.0
4.3 mm (0.169 in.)
Jet valve spring
Free length
29.60 mm (1.17 in.)
Load
3.5 kg/21.5 mm (7.7 Ib/0.846 in.)
1.
Using special tool (09222-21500), install the stem seal.
2.
Apply engine, oil to the jet valve stem when installing it to
the jet body. Take care not to damage the valve stem seal
lip. Make sure that the jet valve stem slides smoothly in the
body.
INSPECTION
INSTALLATION
JET VALVE ASSEMBLY
Y20KBOA
Y20KCOA
,
Gl';\0
---\--~J
t
Offset
1.5
0
Free
length
09222-21400
20Y095
20Y096
20Y097
3.
Mount the valve spring and valve spring retainer on jet body.
4.
Compress the valve spring with special tool (09222-21400),
using care not to damage the valve stem by the bottom of
valve spring retainer.
5.
While the spring is compressed, install the retainer lock.
20-48
20Y098
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