User Setting - Stihl MS 192 T Manual

14.4.2 User Setting

The limiter cap must not be
removed from the high speed screw
when making the user setting.
Standard setting
– Switch off engine
– Check the air filter – clean or
replace if necessary, b 14.1
– Check the chain tension.
– Check the spark arresting screen
(if installed) – clean or replace if
necessary, b 8.1
– Carefully turn the high speed
screw H anticlockwise as far as
possible (max. 3/4 turn).
– Carefully turn the low speed
screw L clockwise until it is firmly
in its seat.
Then open it one turn.
84
Engine stops when idling
– Make standard setting!
– Turn the idle speed screw LA
clockwise until the saw chain
begins to run, then back off
1/4 turn.
Saw chain rotates at idle speed
– Make standard setting!
– Turn the idle speed screw LA
anticlockwise until the saw chain
stops, then give it another
1/4 turn in the same direction.
Erratic idling behaviour, poor
acceleration
– Make standard setting!
Idle setting too lean (e.g. at low
ambient temperatures).
– Turn the low speed screw L
anticlockwise until the engine
runs and accelerates smoothly.
It is usually necessary to change the
setting of the idle speed adjusting
screw LA after every correction to
the low speed adjusting screw L.
MS 192 T