Technical Information · issue 6 of 2009
Carburetor; Fuel pump; Carburetor housing; Control handle; Service notes – barbed connectors; Summary
IssueTI 6/2009
Part changes (6)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 4134 121 0801 | 4134 121 0803 | The previous end cover (1) 4134 121 0801 with smooth connector (2) is being replaced by the new version (3) 4134 121 0803 with barbed connector (4). |
| 1129 007 1062 | 4128 007 1060 | 3 Set of carburetor parts Because of the introduction of the new carburetor with barbed connector (4) on the end cover (3), the previous "set of carburetor parts" 1129 007 1062 is 2 4 being replaced by the new version 4128 007 1060. |
| 4130 350 6200 | 4128 120 0100 | 256TI038 KN connectors Right: New fuel pump with barbed connectors The previous fuel pump (1) 4130 350 6200 with Left: previous carburetor housing smooth connectors (2, 3) is being replaced by the 4128 120 0100 new version (4) 0000 350 6201 with barbed Middle: previous carburetor housing connectors |
| 4128 120 0100 | 4128 120 0151 | 2 Replacement for previous carburetor housing 4128 120 0100 1 2 The previous carburetor housing 4128 120 0100 is being replaced by the new version 4128 120 0151 (parts kit). |
| 4128 120 0101 | 4128 120 0152 | 3 Replacement for previous carburetor Right: New versions of the carburetor housing 4128 120 0101 housing The previous carburetor housing 4128 120 0101 is Simultaneously with the introduction of the new fuel being replaced by the new version 4128 120 0152 pump 0000 350 6201 (see Chap. |
| 4128 790 1351 | 4128 120 0102 | previous control handle 4128 790 1351 (with For older machines with the previous carburetor mounted throttle cable) is being replaced by the new housing 4128 120 0102, the new carburetor version 4128 790 1352 (see also TI 28. |
Full text
Page 1 of 7
STIH)
Technical Information 06.2009
Clearing saw STIHL FS 450 K – Series 4128
Contents
1. Carburetor
2. Fuel pump
3. Carburetor housing
4. Control handle
5. Service notes – barbed connectors
6. Summary
1. Carburetor
In the clearing saw STIHL FS 450 K, the previous
2 5 carburetor (1) with smooth connector (2) on the end
cover (3) is being replaced by the new
carburetor (4) with barbed connector (5) on the end
cover (6).
3 6
256TI035 KN
1 4
Left: previous carburetor with smooth
connector on the end cover
Right: new carburetor with barbed
connector on the end cover
TI_06_2009_30_01_01.fm englisch / English
)m~ge 2 Technical Information 06.2009
STIHL FS 450 K 1.1 End cover
The previous carburetor C1Q-S94 – 4128 120 0603
with smooth connector on the end cover is being
replaced by the new carburetor C1Q-S154 – 4
2
4128 120 0607 with barbed connector on the end
cover (see Chap. 1.1).
1 3
Spare parts 5 7
The previous version of the carburetor with smooth
connector on the end cover is no longer available. 6 8
256TI036 KN
The new version of the carburetor with barbed
connector can also be used for older machines.
Left: Previous end cover with smooth
Service note connector
Right: New end cover with barbed
Observe the service notes for dealing with barbed connector
connectors (see Chap. 5).
The previous end cover (1) 4134 121 0801 with
smooth connector (2) is being replaced by the new
version (3) 4134 121 0803 with barbed
connector (4).
Spare parts
The previous end cover (1) 4134 121 0801 remains
available for machines with the previous carburetor.
Service note
The previous end cover (1) 4134 121 0801 may
only be installed in machines with the previous
carburetor. A previous carburetor can be identified
by the smooth connector (2) on the end cover (1).
The new end cover (3) 4134 121 0803 may only be
installed in machines with the new carburetor. A new
carburetor can be identified by the barbed
connector (4) on the end cover (3). Observe the
service notes for dealing with barbed connectors
(see Chap. 5).
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Technical Information 06.2009 Page 3
1.2 Metering diaphragm, gasket 1.3 Set of carburetor parts
Because of the introduction of the new carburetor
with barbed connector (4) on the end cover (3), the
previous "set of carburetor parts" 1129 007 1062 is
2 4
being replaced by the new version 4128 007 1060.
The difference between the new "set of carburetor
1 3 parts" and the previous version is the new metering
diaphragm 4134 121 4700 and the new gasket
5 7 4134 129 0901 (see Chap. 1.2).
6 8
256TI036 KN
Spare parts
The previous "set of carburetor parts"
1129 007 1062 remains available for machines with
Left: Previous end cover with smooth
the previous carburetor.
connector
Right: New end cover with barbed
connector Service note
Because of the introduction of the new carburetor The previous "set of carburetor parts"
with barbed connector (4) on the end cover (3), the 1129 007 1062 may only be installed in machines
previous versions of the metering diaphragm (5) with the previous carburetor. A previous carburetor
4129 121 4700 and the gasket (6) 1129 129 0900 can be identified by the smooth connector (2) on the
are being replaced by the new versions of the end cover (1).
metering diaphragm (7) 4134 121 4700 and the
The new "set of carburetor parts" 4128 007 1060
gasket (8) 4134 129 0901.
may only be installed in machines with the new
carburetor. A new carburetor can be identified by the
Spare parts barbed connector (4) on the end cover (3). Observe
the service notes for dealing with barbed connectors
The previous versions of the metering (see Chap. 5).
diaphragm (5) 4129 121 4700 and the gasket (6)
1129 129 0900 remain available for machines with
the previous carburetor.
Service note
The previous versions of the metering
diaphragm (5) 4129 121 4700 and the gasket (6)
1129 129 0900 may only be installed in machines
with the previous carburetor. A previous carburetor
can be identified by the smooth connector (2) on the
end cover (1).
The new versions of the metering diaphragm (7)
4134 121 4700 and the gasket (8) 4134 129 0901
may only be installed in machines with new
carburetor. A new carburetor can be identified by the
barbed connector (4) on the end cover (3). Observe
the service notes for dealing with barbed connectors
(see Chap. 5).
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)m~ge 4 Technical Information 06.2009
2. Fuel pump 3. Carburetor housing
3.1 Distinguishing features of the previous
versions of the carburetor housing
1 4 3 3
2 3 5 6
256TI037 KN
Left: Previous fuel pump with smooth 1 2 2
256TI038 KN
connectors
Right: New fuel pump with barbed
connectors
The previous fuel pump (1) 4130 350 6200 with Left: previous carburetor housing
smooth connectors (2, 3) is being replaced by the 4128 120 0100
new version (4) 0000 350 6201 with barbed Middle: previous carburetor housing
connectors (5, 6). Moreover, the new fuel pump (4) 4128 120 0101
differs from the previous version (1) by a modified Right: previous carburetor housing
geometry (arrows) for snapping the fuel pump into 4128 120 0102
the carburetor housing (see Chap. 3).
The previous versions of the carburetor housing can
The smooth connectors (2, 3) of the previous fuel be differentiated by:
pump (1) are arranged one after the other; the
. Shape in the area of the throttle cable
barbed connectors (5, 6) of the new fuel pump (4)
receiver (1, 2)
are arranged with a diagonal offset.
. molded on receivers (3) for the grommet –
present only in the previous versions of the
Spare parts carburetor housing 4128 120 0100 and the
The previous fuel pump (1) 4130 350 6200 remains carburetor housing 4128 120 0101
available for older machines with the previous Observe the spare parts documentation for using
carburetor housing (see Chap. 3). the previous versions of the carburetor housing.
Additional details about the carburetor housings are
Service note presented in TI 05.2003 and TI 46.2003.
The previous fuel pump (1) 4130 350 6200 may
only be installed in machines with the previous
carburetor housing (see Chap. 3).
The new fuel pump (4) 0000 350 6201 may only be
installed in machines with the new carburetor
housing (see Chap. 3). Observe the service notes
for dealing with barbed connectors (see Chap. 5).
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Technical Information 06.2009 Page 5
3.2 New versions of the carburetor housing 3.2.2 Replacement for previous carburetor
housing 4128 120 0100
1 2 The previous carburetor housing 4128 120 0100 is
being replaced by the new version 4128 120 0151
(parts kit).
The new carburetor housing 4128 120 0151 (parts
kit) can be used for older machines with the
previous carburetor housing 4128 120 0100, since
the new parts kit contains the modified carburetor
housing and the new fuel pump 0000 350 6201.
256TI039 KN
The previous carburetor housing 4128 120 0100 is
no longer available.
Left: Previous versions of the carburetor
housing
3.2.3 Replacement for previous carburetor
Right: New versions of the carburetor housing 4128 120 0101
housing
The previous carburetor housing 4128 120 0101 is
Simultaneously with the introduction of the new fuel being replaced by the new version 4128 120 0152
pump 0000 350 6201 (see Chap. 2), the previous (parts kit).
versions of the carburetor housing (1) are being
The new carburetor housing 4128 120 0152 (parts
replaced by new versions (2). The new carburetor
kit) can be used for older machines with the
housings (2) differ from the previous versions (1) in
previous carburetor housing 4128 120 0101, since
that each has a modified geometry (arrows) for
the new parts kit contains the modified carburetor
snapping the fuel pump (see Chap. 2) into the
housing and the new fuel pump 0000 350 6201.
carburetor housing.
The previous carburetor housing 4128 120 0101 is
no longer available.
3.2.1 Replacement for previous carburetor
housing 4128 120 0102
The previous carburetor housing 4128 120 0102 is 4. Control handle
being replaced by the new version 4128 120 0103.
For the clearing saw STIHL FS 450 K, which is still
The new carburetor housing 4128 120 0103 is equipped with the throttle cable 4128 180 1102, the
available separately for new machines. previous control handle 4128 790 1351 (with
For older machines with the previous carburetor mounted throttle cable) is being replaced by the new
housing 4128 120 0102, the new carburetor version 4128 790 1352 (see also TI 28.2005 and
housing 4128 120 0150 is available as parts kit. The TI 37.2006).
parts kit contains the new carburetor housing The new control handle 4128 790 1352 differs from
4128 120 0103 and the new fuel pump the previous version 4128 790 1351 by the new
0000 350 6201. carburetor housing 4128 120 0152, which includes
The previous carburetor housing 4128 120 0102 is the new fuel pump 0000 350 6201
no longer available. (see Chap. 3.2.3). The new control handle comes
with extensively illustrated installation instructions.
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)m~ge 6 Technical Information 06.2009
5. Service notes – barbed
connectors
To ensure a leakproof fuel system:
. Pull or push the fuel hoses, by hand whenever
possible, in the direction of the connector in
order to avoid damage to the barbed connector
– sharp-edged pliers, screwdrivers, etc., may
not be used – also, do not cut open fuel hoses
with a knife or similar aids
. Do not reuse fuel hoses after disassembly, but
instead always replace them with new hoses –
fuel hoses can be overstretched when being
detached
. Mount new fuel hoses dry or using press fluid
OH 723 – 0781 957 9000. Other press fluids are
not permitted and may lead to fuel hose damage
. When using press fluid OH 723, apply press
fluid OH 723 to the ends of the hose and the
connectors and press the new hoses onto the
barbed connectors
Notes regarding press fluid OH 723
Press fluid OH 723 produces a lubricant film that
simplifies assembly. The lubricant evaporates after
a short time – the hose is firmly seated.
Never use fuel, oil or grease as a lubricant. Fuel, oil
and grease do not evaporate – the hose may come
loose.
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Technical Information 06.2009 Page 7
6. Summary
Item Part Name Previous New Rem.
1 Carburetor C1Q-S94; 4128 120 0603 --- 1)
including Items 3, 4, 5
2 Carburetor C1Q-S154; --- 4128 120 0607 2) 4)
including Items 3, 4, 5
other parts as previously, see spare parts list
3 End cover 4134 121 0801 4134 121 0803 3) 4)
4 Metering diaphragm 4129 121 4700 4134 121 4700 3) 4)
5 Gasket 1129 129 0900 4134 129 0901 3) 4)
6 Set of carburetor parts; 1129 007 1062 4128 007 1060 3) 4)
including Items 4, 5
other parts as previously, see spare parts list
7 Fuel pump 4130 350 6200 0000 350 6201 3) 4)
8 Carburetor housing 4128 120 0102 4128 120 0103 1)
9 Carburetor housing; --- 4128 120 0150 2)
including Items 7, 8
10 Carburetor housing 4128 120 0100 --- 1)
11 Carburetor housing; --- 4128 120 0151 2)
including Item 7
12 Carburetor housing 4128 120 0101 --- 1)
13 Carburetor housing; --- 4128 120 0152 2)
including Item 7
14 Control handle; 4128 790 1351 --- 1)
including Item 12
15 Control handle; --- 4128 790 1352 2)
including Items 7, 13
other parts as previously, see spare parts list
Modification to be introduced : continuously
Remarks
1) Previous version of part no longer available from factory
2) New version of part can also be used for older machines
3) Previous version of part remains available for older machines
4) See "Service notes"
© ANDREAS STIHL AG & Co. KG, 2009 Technical Documentation
D1/MTK-fr
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Extracted from the manufacturer's 2012 service catalogue. Most of these PDFs embed fonts with a shifted character map, so the text above was recovered rather than copied — read it as a faithful but imperfect transcription, and treat the page image above each block as the authority where the two disagree — the figures exist only there, because they are vector drawings that text extraction cannot keep.