Technical Information · issue 29 of 2010
Carburetor; Summary
IssueTI 29/2010
Full text
Page 1 of 2
STIH)
Technical Information 29.2010
STIHL HL 45 Hedge Trimmer – Series 4232
STIHL FC 55 Power Edger – Series 4140
STIHL KM 55 KombiEngine – Series 4140
STIHL FS 45, 55 Brushcutters – Series 4140
Contents
1. Carburetor
2. Summary
1. Carburetor
To further improve function, the previous carburetor 1.3 Settings
C1Q-S153 – 4140 120 0616 is being replaced by
Basic setting in the service shop (without
the carburetor C1Q-S186 – 4140 120 0619.
limiter cap on the high speed screw H)
1.1 Spring Low speed screw L: 1.5 turns open
The new carburetor differs from the previous
carburetor by a reinforced return spring on the High speed screw H: 1.5 turns open
choke shutter.
Standard setting for the user (with limiter cap
1.2 Spare parts on the high speed screw H)
The previous carburetor C1Q-S153 – Low speed screw L: 1.5 turns open
4140 120 0616 is no longer available.
The new carburetor C1Q-S186 – 4140 120 0619 High speed screw H: 3/4 turn open (max.
can also be used for older machines. no further than stop)
The previous spring 1123 122 3000 remains
available for older machines with the previous
carburetor.
TI_29_2010_30_01_01.fm englisch / English Page 2 of 2
Page 2 Technical Information 29.2010
2. Summary
Item Part Name Previous New Rem.
1 Carburetor C1Q-S153; 4140 120 0616 --- 1)
including Item 3
2 Carburetor C1Q-S186; --- 4140 120 0619 3)
including Item 3
3 Spring 1123 122 3000 4140 122 3000 2)
Modification to be introduced continuously
Remarks
1) Previous version of part no longer available from factory
2) Previous version of part remains available for older models
3) New version of part can also be used for older machines
© ANDREAS STIHL AG & Co. KG, 2010 Technical Documentation
D1/MTK-ro
TI_29_2010_30_01_01.fm 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.