31
MS 380
English
Standard Setting
(without tachometer)
:
Shut off the engine.
:
Check the air filter and clean or
replace it if necessary.
:
Carefully screw both adjusting
screws down onto their seats
(clockwise).
:
Open high speed screw (
H
)
one full
turn.
:
Open the low speed screw (
L
)
one
full turn.
If you do not have a tachometer, do
not set the high speed screw any
leaner by turning it beyond the
standard setting.
Fine Tuning
(with tachometer)
:
Check the air filter and clean or
replace it if necessary.
:
Check chain tension.
:
Start the engine and run until it is
warm.
:
Adjust idle speed correctly (chain
must not rotate).
:
Starting from the standard setting,
use the high speed screw (
H
) to
adjust the maximum engine speed
with a tachometer to 12,500 rpm
(with bar and properly tensioned
chain).
If the
mixture is made too lean
there is a
risk of engine damage
due to insufficient lubrication and
overheating.
Adjusting Idle Speed
Engine stops while idling
:
Open the low speed screw (
L
) one
full turn.
:
Turn the idle speed screw (
LA
)
clockwise until chain begins to run –
then turn it back one quarter of a
turn.
Chain runs when engine is idling
:
Open the low speed screw (
L
) one
full turn.
:
Turn the idle speed screw (
LA
)
counterclockwise until chain stops
running – then turn screw another
quarter turn in the same direction.
215BA010 KN
L
H
215BA011 KN
L
