English / USA
Spark Arresting Screen
in Muffler
Erratic idling behavior, poor
acceleration
Fine tuning for operation at high
altitude
If the engine is down on power or if
maximum engine speed is irregular,
check the spark arresting screen (not
fitted in all markets) in the muffler.
:
Check standard setting.
A slight correction of the setting may be
necessary if the engine does not run
satisfactorily:
Idle setting is too lean:
Wait for the engine to cool down
completely before performing this
work.
:
Turn low speed screw (L) about a
quarter turn counterclockwise until
the engine runs and accelerates
smoothly.
:
:
:
Check the standard setting.
Warm up the engine.
Turn the high speed screw (H)
slightly clockwise (leaner) – no
further than stop.
Machine stops when it is swung at
idle speed
:
Check standard setting.
If the setting is too lean there is a
risk of engine damage due to
insufficient lubrication and
overheating.
Idle setting too rich:
:
Turn low speed screw (L) about a
quarter turn clockwise until the
engine idles smoothly.
:
Take out the screws (1).
It is usually necessary to change the
setting of the idle speed screw (LA)
after every correction to the low speed
screw (L).
:
Remove the exhaust pipe (2).
20
HS 81 R, HS 81 T
| Categories | Hedge Trimmer Manuals, STIHL Hedge Trimmer Manuals, Trimmer Manuals |
|---|---|
| Tags | STIHL HS 81 |
| 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, Trimmer |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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