35
MS 191 T
English / USA
Standard Setting
:
Shut off the engine.
:
Check the air filter and clean or
replace it as necessary.
:
Check spark arresting screen in the
muffler and clean or replace it as
necessary.
:
Turn the high speed screw
(H)
counterclockwise (max.
3
/
4
turn) as
far as stop.
:
Set the low speed screw (
L
) to one
full turn up.
Adjusting Idle Speed
Engine stops while idling
:
Turn the idle speed screw
(LA)
clockwise until chain begins to run –
then back it off one quarter of a turn.
Chain runs when engine is idling
Turn the idle speed screw
(LA)
counterclockwise until chain stops
running – then turn screw another
quarter turn in the same direction.
Erratic idling behavior, poor
acceleration
Idle setting too lean:
:
Turn low speed screw
(L)
counterclockwise until the engine
runs and accelerates smoothly
Adjustment for Operation at High
Altitudes
A slight correction of the setting may be
necessary if engine power is not
satisfactory when operating at high
altitude:
:
Check standard setting.
:
Warm up the engine.
:
Turn the high speed screw
(H)
and
the low speed screw
(L)
clockwise.
164BA000 KN
L
H
/
3 4
1
164BA001 KN
LA
164BA000 KN
L
H
/
3 4
1
Summary of Contents for MS 191 T
Page 53: ...52 English USA MS 191 T...
Page 105: ...104 espa ol EE UU MS 191 T...
