English / USA
Motor Management
Adjusting the Carburetor
Exhaust emissions are controlled by the
design of the fundamental engine
parameters and components (e.g.
carburation, ignition, timing and valve or
port timing) without the addition of any
major hardware.
General information
The carburetor comes from the factory
with a standard setting
This setting provides an optimumfuel-air
mixture under most operating
conditions.
With this carburetor it is only possible to
adjust the engine idle speed within fine
limits.
2
1
Standard setting
H
/4
3
L
1/
4
H
L
:
Fit the felt prefilter (1) over the HD
filter (2) - note correct installed
position (see ilustration).
:
:
Install HD filter (with felt prefilter)
:
:
Shut off the engine.
and carburetor box cover.
Turn the high speed adjusting screw
Check carburetor setting and
readjust if necessary.
(H) counterclockwise up to the stop,
3
i.e. / turn from max. lean setting.
4
The felt prefilter helps protect the HD
filter and thus extends its useful life.
For this reason the felt prefilter should
be replaced at more frequent intervals
than the HD filter.
:
Turn the low speed adjusting screw
(L) one quarter of a turn
counterclockwise from max. lean
setting.
Always replace a damaged filter.
MS 440, MS 440 W, MS 440 C
43
| Categories | Chainsaw Manuals, STIHL Chainsaw Manuals |
|---|---|
| Tags | STIHL MS 440 |
| Download File |
|
| Language | English, EspanĚol |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Chainsaw |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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