Technical Information · issue 9 of 2007
Crankshaft (5-part); Spare parts; Service note; Carburetor Adjustment
IssueTI 9/2007
Full text
Page 1 of 2
STIH)
Technical Information 09.2007
STIHL BT 120 C, 121 Earth Augers – Series 4313
STIHL FS 120, 200, 250 Brushcutters – Series 4134
STIHL SP 200 Special Harvester – Series 4233
Contents
1. Crankshaft (5-part)
1.1 Spare parts
1.2 Service note
2. Carburetor Adjustment
1. Crankshaft (5-part)
1.1 Spare parts
For all series 4134 shortblocks, only the 3-part
crankshaft has previously been used. In the future,
only the 5-part crankshaft 4134 030 0403 will be
used for the supply of spare parts.
The 5-part crankshaft also requires two shims
4140 036 0300. These shirms are included with the
crankshaft, along with an information sheet. The use
of the shims should be noted when carrying out
250TI059 KN
repairs in the crankshaft area.
5-part crankshaft with shims
1.2 Service note
When installing a 5-part crankshaft in the
The 5-part crankshaft has already been in series crankcase, it is essential to fit two new shims
use for some years now (see TI 09.2003). Together 4140 036 0300 to the flywheel and clutch side of the
with the new 5-part crankshaft, shims (arrows) crankshaft prior the installation.
4140 036 0300 are fitted to the flywheel and clutch
side of the crankshaft prior the installation.
TI_09_2007_30_01_01.fm englisch / English USA
)m~ge 2 Technical Information 09.2007
Any previous shims remaining in the crankcase
must be removed before installing a new crankshaft.
The 3-part crankshaft 4134 030 0400 will not
incorporate shims 4140 036 0300.
Summary
Item Part name Previous New Remarks
1 Crankshaft; 4134 030 0400 4134 030 0403 1)
including Item 2:
2 Shim (2x) --- 4140 036 0300
Modification to be introduced continuously
Remarks
1) Previous version of the part will be available while stocks last. After that, only the new version of the part
will be available.
2. Carburetor Adjustment
On the basis of practical experience in this series, the basic setting without a limiter cap for the high-speed
screw H will be modified when carrying out repairs:
Adjustment of high-speed screw H
[number of turns open]
Previous New Carburetor Series
1 3/4 1 1/2 C1Q-S82 BT 120 C, 121
FS 120
1 3/4 1 1/2 C1Q-S83 FS 200, 250
SP 200
The setting of the adjustment screw L remains unchanged.
© ANDREAS STIHL AG & Co. KG, 2007 Technical Documentation
D1/MTK-na
TI_09_2007_30_01_01.fm Page 2 of 2
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.