English
N
N
Turn the high speed screw (H)
counterclockwise as far as stop (no
more than 3/4 turn).
Fine tuning for operation at high
altitude
Adjusting the Carburetor
Turn the low speed screw (L)
carefully clockwise as far as stop,
then turn it back 1 full turn.
A slight correction of the setting may be
necessary if engine does not run
satisfactorily:
General Information
The carburetor comes from the factory
with a standard setting.
N
Turn high speed screw (H)
clockwise (leaner) – no further than
stop.
Readjust idle
This setting provides an optimum fuel-air
mixture under most operating
conditions.
Engine stops while idling
If the setting is too lean there is a
risk of engine damage due to
insufficient lubrication and
overheating.
N
Open the low speed screw (L) one
full turn.
With this carburetor it is only possible to
correct the adjusting screws within fine
limits.
N
Turn the idle speed screw (LA)
clockwise until the chain begins to
run – then back it off 1 full turn.
If the setting is too lean there is a
risk of engine damage due to
insufficient lubrication and
overheating.
Chain runs when engine is idling
N
Open the low speed screw (L) one
full turn.
Standard Setting
N
Turn the idle speed screw (LA)
counterclockwise until the chain
begins to run – then turn it another
1
turn in the same direction.
If the chain continues moving
when the engine is idling, have
your saw checked and repaired by
your servicing dealer.
H
L
LA
Erratic idling behavior, poor
acceleration (even though low speed
screw is open one turn)
N
N
Stopping the engine
Check the air filter and clean or
replace if necessary.
N
Idle setting is too lean: Turn the low
speed screw (L) counterclockwise
until the engine runs and
N
Check the spark arresting screen
(country-specific) in the muffler and
clean or replace if necessary.
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).
4
2
MS 261, MS 261 C
| Categories | Chainsaw Manuals, STIHL Chainsaw Manuals |
|---|---|
| Tags | STIHL MS 261 |
| 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, Chainsaw |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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