Stihl KM 85 R User Manual

22
English
KM 85, KM 85 R
Rule of thumb
Turn high speed screw (H) about
1
/
4
turn for every 1000 m (3300 ft)
change in altitude.
: Carry out standard setting.
: Warm up engine for about 3
minutes.
At high altitude
: Turn high speed screw (H) clock-
wise (leaner) no further than stop.
At sea level
: Turn high speed screw (H) counter-
clockwise (richer) no further than
stop.
Maximum engine speed is normally
reached with the standard setting in
each case.
Adjusting Idle Speed
It is usually necessary to change the
setting of the idle speed screw (LA)
after every correction to the low speed
screw (L).
: Warm up the engine for about 3
minutes.
Engine stops while idling
: Turn idle speed screw (LA) slowly
clockwise until the engine runs
smoothly – the tool must not move.
CombiTool moves when engine is
idling
: Turn idle speed screw (LA) counter-
clockwise until the tool stops moving
and then turn the screw about
another
1
/
2
to 1 turn in the same
direction.
Erratic idling behavior, engine stops
even though setting of LA screw is
correct, poor acceleration
Idle setting too lean:
: Turn low speed screw (L)
counterclockwise (about
1
/
4
turn)
until the engine runs and
accelerates smoothly.
Erratic idling behavior
Idle setting too rich:
: Turn low speed screw (L) clockwise
(about
1
/
4
turn) until the engine runs
and accelerates smoothly.
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Stihl KM 85 R Specifications

General

Brand	Stihl
Model	KM 85 R
Category	Trimmer
Language	English