Technical Information · issue 54 of 2007
Carburetor
IssueTI 54/2007
Engine family 1123
Full text
Page 1 of 3
STIH)
Technical Information 54.2007
Chain saws STIHL MS 210, MS 230, MS 250 – Series 1123
Carburetor
To optimize operation, the carburetors specified in
this summary have been changed for the models
MS 210, MS 230 and MS 250.
Previous and new carburetors can be distinguished
by the different engraved carburetor identification
numbers. The identification numbers are listed in
this summary.
On the models MS 210, 230 and 250, the
identification numbers can be found on the body of
the installed carburetor after disconnecting the fuel
hose from the carburetor fuel inlet.
Location of the carburetor
Example: Carburetor with identification numbers
"S84 B"
TI_54_2007_30_01_01.fm englisch / English
)m~ge 2 Technical Information 54.2007
Contents
Part No. Use Identification numbers Identification numbers
of previous carburetor of new carburetor
1123 120 0602 MS 250 C1Q-S75A C1Q-S75B
1123 120 0603 MS 230 / 250 C1Q-S76A C1Q-S76B
1123 120 0604 MS 210 C1Q-S77A C1Q-S77B
1123 120 0606 MS 230/250 C1Q-S84B C1Q-S84C
1123 120 0607 MS 230/250 C1Q-S85B C1Q-S85C
1123 120 0608 MS 210 C1Q-S86B C1Q-S86C
1123 120 0609 MS 210 C1Q-S87B C1Q-S87C
1123 120 0617 MS 230/250 Easy Start C1Q-S91 C1Q-S91A
1123 120 0618 MS 210 Easy Start C1Q-S89B C1Q-S89C
1123 120 0619 MS 210 Easy Start C1Q-S90A C1Q-S90B
1123 120 0620 MS 230 / 250 Easy Start C1Q-S92 C1Q-S92A
Mechanical design, function and settings are
identical on both previous and new machines.
Pump piston kit New machines will be offered with the new updated
Function and fit of the carburetor accelerator pump carburetors.
have been improved. Service note / Supply of spare parts
The previous carburetors are fitted with pump piston When servicing previous carburetors only pump
kit 1137 120 9700, while pump piston kit piston kit 1137 120 9700 can be installed. When
1123 120 9700 is installed in new carburetors. servicing new carburetors only pump piston kit
1123 120 9700 can be installed.
Summary
Part name Previous New Remarks
1 Carburetor C1Q-S75A 1123 120 0602 ---
2 Carburetor C1Q-S75B --- 1123 120 0602 1)
3 Carburetor C1Q-S76A 1123 120 0603 ---
4 Carburetor C1Q-S76B --- 1123 120 0603 1)
5 Carburetor C1Q-S77A 1123 120 0604 ---
6 Carburetor C1Q-S77B --- 1123 120 0604 1)
7 Carburetor C1Q-S84B 1123 120 0606 ---
8 Carburetor C1Q-S84C --- 1123 120 0606 1)
9 Carburetor C1Q-S85B 1123 120 0607 ---
10 Carburetor C1Q-S85C --- 1123 120 0607 1)
11 Carburetor C1Q-S86B 1123 120 0608 ---
12 Carburetor C1Q-S86C --- 1123 120 0608 1)
13 Carburetor C1Q-S87B 1123 120 0609 ---
14 Carburetor C1Q-S87C --- 1123 120 0609 1)
15 Carburetor C1Q-S91 1123 120 0617 ---
16 Carburetor C1Q-S91A --- 1123 120 0617 1)
17 Carburetor C1Q-S89B 1123 120 0618 ---
TI_54_2007_30_01_01.fm Page 2 of 3
Technical Information 54.2007 Page 3
Part name Previous New Remarks
18 Carburetor C1Q-S89C --- 1123 120 0618 1)
19 Carburetor C1Q-S90A 1123 120 0619 ---
20 Carburetor C1Q-S90B --- 1123 120 0619 1)
21 Carburetor C1Q-S92 1123 120 0620 ---
22 Carburetor C1Q-S92A --- 1123 120 0620 1)
23 Pump piston kit 1137 120 9700 1123 120 9700 2)
Remarks
1) Only modified version of part is available from factory
2) Previous version of part remains available for older models
© ANDREAS STIHL AG & Co. KG, 2007 Technical Documentation
D1/MTK
TI_54_2007_30_01_01.fm Page 3 of 3
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.