English / USA
Catalytic Converter*
Checking the Spark Plug
Adjusting idle speed
Units with a catalytic converter* may
only be operated with unleaded
gasoline and STIHL two cycle engine
oil or equivalent quality two cycle engine
oils in a mix ratio of 50:1 (see chapter
“Fuel”).
L
LA
The catalylic converter in the muffler
reduces noxious emissions in the
exhaust gas.
Correct adjustment of the carburetor (if
adjustable) and observance of the
specified mix ratio of gasoline and two
cycle engine oil are essential to
Engine stops while idling
:
Set low speed screw (L) to one full
turn open.
minimize harmful exhaust emissions
and ensure a long catalyst service life.
:
Turn idle speed screw (LA) slowly
clockwise until the engine runs
1
smoothly – then back it off /4 turn
from that position.
Wrong fuel mix (too much engine oil in
the gasoline), a dirty air filter and
Erratic idling behavior; poor
acceleration
(even though low speed screw is open
one full turn)
unfavorable running conditions (mostly
at part throttle etc.) affect the condition of
the spark plug. These factors cause
deposits to form on the insulator nose
which may result in trouble in operation.
Idle setting is too lean:
:
Turn low speed screw (L)
counterclockwise until the engine
runs and accelerates smoothly.
It is usually necessary to change the
setting of the idle speed screw (LA)
after every correction to the low speed
screw (L).
*
see “Guide to Using this Manual”
22
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, Español |
| 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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