English / USA
Motor Management
Adjusting the Carburetor
(With idle speed screw LD)
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.
Standard setting
:
Check the air filter and replace if
necessary.
:
:
Start and warm up the engine.
LD +
Carefully screw the idle speed
screw (LD) down onto its seat
counterclockwise(left-hand thread).
Then open it two full turns clockwise
(standard setting).
-
Engine stops when engine is idling:
Carry out standard setting
(open the LD screw two full turns)
:
Rotate idle speed screw (LD) about
one half turn clockwise until the
engine runs smoothly.
The carburetor is set at the factory to
provide an optimum fuel-air mixture
under all operating conditions.
Erratic idling behavior, poor
acceleration:
Carry out standard setting
(open the LD screw two full turns)
:
Rotate idle speed screw (LD) about
one half turn counterclockwise.
20
BG 55, BG 65, BG 85, SH 55, SH 85
| Categories | Blower Vacuum and Sweeper Manuals, STIHL Blower and Vacuum Manuals |
|---|---|
| Tags | STIHL BG 55, STIHL BG 65, STIHL BG 85, STIHL SH 55, STIHL SH 85 |
| 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, Blower Vacuum |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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