STIHL 044 Chainsaw Owners Manual

Adjusting Carburetor
Motor management
Setting idle speed
Exhaust emissions are controlled by the
design of the fundamental engine
parameters and components
It is usually necessary to change the
setting of the idle speed adjusting screw
(LA) after every correction to the low
speed adjusting screw (L).
  
H L
(e.g. carburetion, ignition, timing and
valve or port timing) without the addition
of any major hardware.
H
/4
3
L
1/
4
Engine stops while idling
The carburetor is set at the factory to
provide an optimum fuel-air mixture
under all operating conditions.
Turn the idle speed adjusting
screw (LA) clockwise until
chain begins to run -
LA
then back off the screw one quarter
of a turn
It enables your machine to run smoothly,
be fuel efficient, operate reliably and
produce low emissions.
Chain runs when engine is idling
Standard setting and explanation of
setting pictograms
Turn the idle speed adjusting
screw (LA) counterclockwise until
chain stops running -
Check the air filter and clean or
Correction of carburetor setting for
higher altitudes
then turn screw another
replace it if necessary
quarter turn in the same direction
Check the spark arresting screen
and clean or replace it if necessary
If the engine runs unsatisfactorily, slight
readjustment may be necessary:
Erratic idling behavior,
poor acceleration
Turn the high speed adjusting
screw (H) counterclockwise up to
Check standard setting
Idle setting is too lean
H
3
/4    the stop, i.e. 3/4 turn from max.
warm up the engine
lean setting
Turn the low speed adjusting
Turn the high speed adjusting
screw (H) and low speed adjusting
screw (L) clockwise (leaner) -
screw (L) counterclockwise -
no further than stop -
Turn the low speed adjusting
screw (L) clockwise up to the stop
until engine runs and accelerates
smoothly -
L
4
1/
- then back off the screw one
quarter of a turn
!
Warning!
If you make the setting too lean, the
maximum permissible engine speed will
be exceeded - risk of engine damage.
044
39
Product Specification
CategoriesChainsaw Manuals, STIHL Chainsaw Manuals
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- 54 pages
LanguageEnglish
Product BrandSTIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Chainsaw
Document File TypePDF
Publisherstihl.com
Wikipedia's PageStihl
CopyrightAttribution Non-commercial
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bal on Nov 28, 2012.



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