Stihl MS 461 Rescue, Instruction Manual

Page: 36 / 52

MS 461
English
34
If there is a noticeable loss of engine
power:
N
Wash the filter in STIHL special-
purpose cleaner (special
accessory) or a clean, non-
flammable cleaning liquid (e.g.,
warm soapy water) – rinse the filter
from inside to out under a water jet
– do not use high-pressure cleaners
N
Dry all filter parts – do not expose to
extreme heat
N
Do not oil the filter
N
Reinstall filter
Basic information
The carburetor comes from the factory
with a standard setting.
The carburetor has been adjusted for
optimum performance and fuel
efficiency in all operating states.
The adjusting screws on this carburetor
can only be set within narrow limits.
The ignition module limits the maximum
speed. It is therefore not possible to
increase the maximum speed by further
turning the high speed screw (H) in the
clockwise direction (making the mix
leaner).
Standard setting
N
Switch off the engine
N
Check the air filter – clean or replace
it if necessary
N
Check the spark arresting screen in
the muffler (present only in some
countries) – clean or replace it if
necessary
N
Turn the high speed adjusting
screw (H) counterclockwise as far
as possible – max. 3/4 turn
N
Turn the low speed adjusting
screw (L) clockwise – as far as
possible – then back off 1/4 turn
Setting the idle speed
N
Make standard setting
N
Start engine and let it warm up
Engine stops when idling or saw chain
rotates at idle speed
N
Turn the idle speed adjusting
screw (LA) clockwise until the saw
chain begins to run – then turn it
back 1 1/2 turns.
Cleaning the Air Filter Adjusting the Carburetor
3443BA001 KN
3443BA002 KN