Stihl KM 111 R User manual

STIHL KM 111 R, 131, 131
R
Instruction Manual
2 - 22

Contents
1 KombiSystem..............................................2
2 Guide to Using this Manual.........................2
3 Safety Precautions and Working Techni‐
ques............................................................ 3
4 Approved KombiTools.................................7
5 Mounting the Loop Handle..........................7
6 Mounting the Bike Handle...........................8
7 Adjusting the Throttle Cable......................10
8 Fuel........................................................... 11
9 Fueling...................................................... 12
10 Starting / Stopping the Engine.................. 12
11 Operating Instructions...............................15
12 Replacing the Air Filter..............................15
13 Adjusting the Carburetor........................... 15
14 Spark Plug................................................ 15
15 Storing the Machine.................................. 16
16 Maintenance and Care..............................17
17 Minimize Wear and Avoid Damage...........18
18 Main Parts.................................................19
19 Specifications............................................19
20 Maintenance and Repairs......................... 20
21 Disposal.................................................... 20
22 EC Declaration of Conformity................... 21
23 UKCA Declaration of Conformity.............. 21
Dear Customer,
Thank you for choosing a quality engineered
STIHL product.
It has been built using modern production techni‐
ques and comprehensive quality assurance.
Every effort has been made to ensure your satis‐
faction and trouble-free use of the product.
Please contact your dealer or our sales company
if you have any queries concerning this product.
Your
Dr. Nikolas Stihl
1 KombiSystem
In the STIHL KombiSystem a number of different
KombiEngines and KombiTools can be com‐
bined to produce a power tool. In this instruction
manual the functional unit formed by the Kom‐
biEngine and KombiTool is referred to as the
power tool.
Therefore, the separate instruction manuals for
the KombiEngine and KombiTool should be used
together for the power tool.
Always read and and make sure you understand
both instruction manuals before using your
power tool for the first time and keep them in a
safe place for future reference.
2 Guide to Using this Manual
2.1 Pictograms
The meanings of the pictograms attached to the
machine are explained in this manual.
Depending on the model concerned, the follow‐
ing pictograms may be attached to your
machine.
Fuel tank; fuel mixture of gasoline
and engine oil
Operate decompression valve
Manual fuel pump
Operate manual fuel pump
Tube of grease
Intake air: Summer operation
Intake air: Winter operation
Handle heating
2.2 Symbols in text
WARNING
Warning where there is a risk of an accident or
personal injury or serious damage to property.
NOTICE
Caution where there is a risk of damaging the
machine or its individual components.
2.3 Engineering improvements
STIHL's philosophy is to continually improve all
of its products. For this reason we may modify
the design, engineering and appearance of our
products periodically.
English
2 0458-436-0121-B
© ANDREAS STIHL AG & Co. KG 2021
0458-436-0121-B. VA0.H21.
Printed on chlorine-free paper Printing inks contain vegetable oils, paper can be recycled.
Original Instruction Manual 0000007393_010_GB

Therefore, some changes, modifications and
improvements may not be covered in this man‐
ual.
3 Safety Precautions and
Working Techniques
Special safety precautions must be
observed when working with a power
tool.
Always read and and make sure you
understand both instruction manuals
(KombiMotor and KombiTool) before
using your power tool for the first time
and keep them in a safe place for
future reference. Non-observance of
the safety precautions may result in
serious or even fatal injury.
Observe all applicable local safety regulations,
standards and ordinances.
If you have not used this type of power tool
before: Have your dealer or other experienced
user show you how it is operated or attend a
special course in its operation.
Minors should never be allowed to use a power
tool.
Keep bystanders, especially children, and ani‐
mals away from the work area.
When the power tool is not in use, shut it off so
that it does not endanger others. Secure it
against unauthorized use.
The user is responsible for avoiding injury to third
parties or damage to their property.
Lend or rent your power tool only to persons who
are familiar with this model and its operation – do
not lend your power tool without the KombiMotor
and KombiTool instruction manuals.
The use of noise emitting power tools may be
restricted to certain times by national or local
regulations.
To operate the power tool you must be rested, in
good physical condition and mental health.
If you have any condition that might be aggrava‐
ted by strenuous work, check with your doctor
before operating a power tool.
Persons with pacemakers only: The ignition sys‐
tem of your power tool produces an electromag‐
netic field of a very low intensity. This field may
interfere with some pacemakers. STIHL recom‐
mends that persons with pacemakers consult
their physician and the pacemaker manufacturer
to reduce any health risk.
Do not operate the power tool if you are under
the influence of any substance (drugs, alcohol)
which might impair vision, dexterity or judgment.
Use your power tool only for the applications
described in the instruction manual of the Kombi‐
Tool you are using.
Do not use your power tool for any other purpose
because of the increased risk of accidents.
Do not operate the KombiEngine without a prop‐
erly mounted KombiTool since this may result in
damage to the machine.
Only use KombiTools and accessories that are
explicitly approved for this power tool by STIHL
or are technically identical. It is important that
you read the chapter on "Approved KombiTools".
If you have any questions in this respect, consult
a servicing dealer. Use only high quality tools
and accessories in order to avoid the risk of acci‐
dents and damage to the machine.
STIHL recommends the use of genuine STIHL
tools and accessories. They are specifically
designed to match the product and meet your
performance requirements.
Never attempt to modify your machine in any
way since this may increase the risk of personal
injury. STIHL excludes all liability for personal
injury and damage to property caused while
using unauthorized attachments.
Do not use a pressure washer to clean your
power tool. The solid jet of water may damage
parts of the power tool.
3.1 Clothing and Equipment
Wear proper protective clothing and equipment.
Avoid clothing that could get caught
on branches or brush or moving parts
of the machine. Do not wear a scarf,
necktie or jewelry. Tie up long hair so
that it is above shoulder level.
See also notes on "Clothing and Equipment" in
the instruction manual of the KombiTool you are
using.
3 Safety Precautions and Working Techniques English
0458-436-0121-B 3

3.2 Transporting the Power Tool
002BA079 KN
Always shut off the engine.
Transporting by vehicle: Properly secure your
power tool to prevent turnover, fuel spillage and
damage.
See also notes on "Transporting the Machine" in
the instruction manual of the KombiTool you are
using.
3.3 Fueling
Gasoline is an extremely flammable
fuel. Keep clear of naked flames. Do
not spill any fuel – do not smoke.
Always shut off the engine before refueling.
Do not fuel a hot engine – fuel may spill and
cause a fire.
Open the fuel cap carefully to allow any pressure
build-up in the tank to release slowly and avoid
fuel spillage.
Fuel your power tool only in well-ventilated
areas. If you spill fuel, wipe the machine immedi‐
ately – if fuel gets on your clothing, change
immediately.
After fueling, tighten down the fuel
tank cap as securely as possible.
This reduces the risk of unit vibrations causing
the fuel cap to loosen or come off and spill quan‐
tities of fuel.
To reduce the risk of serious or fatal burn inju‐
ries, check for fuel leakage. If fuel leak is found,
do not start the engine.
3.4 Before Starting
Check that your power tool is properly assem‐
bled and in good condition – refer to appropriate
chapters in the instruction manuals.
–Check the fuel system for leaks, paying spe‐
cial attention to visible parts such as the tank
cap, hose connections and the manual fuel
pump (on machines so equipped). If there are
any leaks or damage, do not start the engine –
risk of fire. Have your machine repaired by a
servicing dealer before using it again.
–Use only an approved combination of cutting
attachment, deflector, handle and harness. All
parts must be assembled properly and
securely.
–The stop switch must move freely.
–Check smooth action of choke knob, throttle
trigger lockout and throttle trigger – the throttle
trigger must return automatically to the idle
position. The choke knob must spring back
from the g and < positions to the run posi‐
tion F when the throttle trigger lockout and
throttle trigger are squeezed.
–Check that the spark plug boot is secure – a
loose boot may cause arcing that could ignite
combustible fumes and cause a fire.
–Never attempt to modify the controls or safety
devices in any way.
–Keep the handles dry and clean – free from oil
and dirt – for safe control of the power tool.
–Adjust the harness and handle(s) to suit your
height and reach.
To reduce the risk of accidents, operate your
power tool only if it is in a safe condition.
If you use a shoulder strap or full harness: Prac‐
tice removing and putting down the machine as
you would in an emergency. To avoid damage,
do not throw the machine to the ground when
practicing.
See also notes on "Before Starting" in the
instruction manual of the KombiTool you are
using.
3.5 Starting the Engine
Start the engine at least 3 meters from the fuel‐
ing spot, outdoors only.
English 3 Safety Precautions and Working Techniques
4 0458-436-0121-B

Place the power tool on firm ground in an open
area. Make sure you have good balance and
secure footing. Hold the power tool securely. The
attachment must be clear of the ground and all
other obstructions because it may begin to run
when the engine starts.
To reduce the risk of injury, avoid contact with
the attachment.
Do not drop start the power tool – start the
engine as described in the instruction manual.
Note that the attachment continues to run for a
short period after you let go of the throttle trigger
– flywheel effect.
Check idle speed setting: The attachment must
be stationary when the engine is idling with the
throttle trigger released.
To reduce the risk of fire, keep hot exhaust
gases and hot muffler away from easily combus‐
tible materials (e.g. wood chips, bark, dry grass,
fuel).
See also notes on "Starting / Stopping the
Engine" in the instruction manual of the Kombi‐
Tool you are using.
3.6 Holding and Controlling the
Power Tool
Always hold the power tool firmly with both
hands on the handles.
Make sure you always have good balance and
secure footing.
3.6.1 Models with bike handle
002BA257 KN
Right handle on control handle, left hand on left
handle.
3.6.2 Models with loop handle
0000-GXX-0492-A0
Left hand on loop handle, right hand on control
handle, even if you are left-handed.
3.7 During Operation
In the event of imminent danger or in an emer‐
gency, switch off the engine immediately – oper‐
ate the stop switch.
The correct engine idle speed is important to
ensure that the attachment stops moving when
you let go of the throttle trigger. If the attachment
continues to run when the engine is idling, have
your dealer check your machine and make
proper adjustments or repairs. Check and correct
the idle speed setting regularly. STIHL recom‐
mends an authorized STIHL servicing dealer.
Be particularly alert and cautious when wearing
hearing protection because your ability to hear
warnings (shouts, alarms, etc.) is restricted.
To reduce the risk of accidents, take a break in
good time to avoid tiredness or exhaustion.
Work calmly and carefully – in daylight conditions
and only when visibility is good. Stay alert so as
not to endanger others.
Use your power tool only in the areas specified in
the KombiTool instruction manual.
Your power tool produces toxic
exhaust fumes as soon as the engine
is running. These fumes may be col‐
orless and odorless and contain
unburned hydrocarbons and benzol.
Never run the engine indoors or in
poorly ventilated locations, even if
your model is equipped with a cata‐
lytic converter.
To reduce the risk of serious or fatal injury from
breathing toxic fumes, ensure proper ventilation
when working in trenches, hollows or other con‐
fined locations.
To reduce the risk of accidents, stop work imme‐
diately in the event of nausea, headache, visual
disturbances (e.g. reduced field of vision), prob‐
3 Safety Precautions and Working Techniques English
0458-436-0121-B 5

lems with hearing, dizziness, deterioration in abil‐
ity to concentrate. Apart from other possibilities,
these symptoms may be caused by an exces‐
sively high concentration of exhaust gases in the
work area.
Operate your power tool so that it produces a
minimum of noise and emissions – do not run the
engine unnecessarily, accelerate the engine only
when working.
To reduce the risk of fire, do not smoke while
operating or standing near your power tool. Note
that combustible fuel vapor may escape from the
fuel system.
The dusts, vapor and smoke produced during
operation may be dangerous to health. Wear a
suitable respirator in very dusty or smoky condi‐
tions.
If your power tool is subjected to unusually high
loads for which it was not designed (e.g. heavy
impact or a fall), always check that it is in good
condition before continuing work – see also
"Before Starting". Check the fuel system in par‐
ticular for leaks and make sure the safety devi‐
ces are working properly. Do not continue oper‐
ating your power tool if it is damaged. In case of
doubt, consult your servicing dealer.
Do not operate your power tool in the starting
throttle position – engine speed cannot be con‐
trolled in this position.
Before leaving the power tool unattended: Shut
off the engine.
To reduce the risk of injury, always shut off the
engine before changing the KombiTool or attach‐
ment.
3.8 Vibrations
Prolonged use of the power tool may result in
vibration-induced circulation problems in the
hands (whitefinger disease).
No general recommendation can be given for the
length of usage because it depends on several
factors.
The period of usage is prolonged by:
–Hand protection (wearing warm gloves)
–Work breaks
The period of usage is shortened by:
–Any personal tendency to suffer from poor cir‐
culation (symptoms: frequently cold fingers,
tingling sensations).
–Low outside temperatures.
–The force with which the handles are held (a
tight grip restricts circulation).
Continual and regular users should monitor
closely the condition of their hands and fingers. If
any of the above symptoms appear (e.g. tingling
sensation in fingers), seek medical advice.
3.9 Maintenance and Repairs
Service the machine regularly. Do not attempt
any maintenance or repair work not described in
the instruction manual. Have all other work per‐
formed by a servicing dealer.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer. STIHL dealers are
regularly given the opportunity to attend training
courses and are supplied with the necessary
technical information.
Only use high-quality replacement parts in order
to avoid the risk of accidents and damage to the
machine. If you have any questions in this
respect, consult a servicing dealer.
STIHL recommends the use of original STIHL
replacement parts. They are specifically
designed to match your model and meet your
performance requirements.
To reduce the risk of injury from unintentional
engine startup, always shut off the engine and
disconnect the spark plug boot before performing
any repairs, maintenance or cleaning work. –
Exception: Carburetor and idle speed adjust‐
ments.
Do not turn the engine over on the starter with
the spark plug boot or spark plug removed since
there is otherwise a risk of fire from uncontained
sparking.
To reduce the risk of fire, do not service or store
your machine near open flames.
Check the fuel filler cap for leaks at regular inter‐
vals.
Use only a spark plug of the type approved by
STIHL and make sure it is in good condition –
see "Specifications".
Inspect the ignition lead (insulation in good con‐
dition, secure connection).
Check the condition of the muffler.
To reduce the risk of fire and damage to hearing,
do not operate your machine if the muffler is
damaged or missing. –
English 3 Safety Precautions and Working Techniques
6 0458-436-0121-B

Do not touch a hot muffler since burn injury will
result.
Vibration behavior is influenced by the condition
of the AV elements – check the AV elements at
regular intervals.
4 Approved KombiTools
The following STIHL KombiTools may be moun‐
ted on the KombiMotor:
KombiTool Application
FS‑KM Brushcutter with mowing
head
FS‑KM 1) Brushcutter with grass
cutting blade
FSB‑KM 3) 4) Brushcutter with mowing
head
RG-KM 1) Weeder
HL‑KM 145° 3) Long reach hedge trim‐
mer, adjustable
HL‑KM 0° 2) Long reach hedge trim‐
mer
FH‑KM 145° Power scythe
BG‑KM 3) Blower
HT‑KM 2) Pole pruner
BF‑KM Cultivator
FCB‑KM 3) Edger
FCS‑KM 3) Edger
SP‑KM 2) 4) Special Harvester
KB‑KM 2) Bristle brush
KW-KM 2) PowerSweep
5 Mounting the Loop Handle
A barrier bar is supplied with the machine. Attach
the barrier bar to the loop handle.
2
002BA098 KN
1
1
► Insert square nuts (1) in the barrier bar (2) –
the holes must line up
5
4
002BA099 KN
2
3
67
1) for KombiMotors with loop handle: The barrier bar supplied with the loop handle must be used – see
also "Mounting the Loop Handle"
2) Not approved for KombiMotors with bike handle
3) Limited suitability for KombiMotors with bike handle
4) Not approved for KM 131 or KM 131 R
5) Not approved for KM 111 R
4 Approved KombiTools English
0458-436-0121-B 7

► Insert the clamp (3) in the loop handle (4) and
position them together on the shaft (5)
► Position clamp (6)
► Position barrier bar (2) – note position!
► Line up the holes
► Insert bolts (7) in the holes – and screw them
into the barrier bar as far as possible
A
9
8
4
002BA353 KN
► Fit the loop handle (4) at a distance of (A)
approx. 20 cm (8 in) forward of the control
handle (8)
► Orient the loop handle
► Tighten the bolts – lock the nuts if necessary
The sleeve (9) is present depending on the coun‐
try and must be located between the loop handle
and control handle.
Always leave the barrier bar attached.
6 Mounting the Bike Handle
6.1 Mounting Bike Handle with
Swiveling Handle Support
The machine is supplied with the swiveling han‐
dle support already mounted on the shaft. To
mount the handlebar it is necessary to remove
the clamp moldings.
6.1.1 Removing the Clamp Moldings
► Hold the lower clamp (1) and upper clamp (2)
firmly together.
► Release the wing screw (3) – the clamps are
loose once the wing screw has been released.
They are pushed apart by the two
springs (4 and 5).
► Pull out the wing screw – the washer (6)
remains on the wing screw.
► Separate the clamp moldings – the
springs (4 and 5) remain in the lower clamp.
6.1.2 Securing the Handlebar
1
7
A
250BA046 KN
► Place the handlebar (7) in the lower clamp (1)
so that distance A is no more than 15 cm
(6 in).
► Place the upper clamp in position and hold
both clamp moldings together.
► Push the wing screw through the two clamps
as far as stop – hold all parts together and
secure them.
English 6 Mounting the Bike Handle
8 0458-436-0121-B

0000-GXX-0510-A0
8
► Place the secured assembly on the handle
support (8) with the wing screw at the side
nearest the engine.
► Push the wing screw into the handle support
as far as stop and then screw it down – but do
not finally tighten yet.
► Line up the handlebar at a right angle to the
drive tube – check distance A again.
► Tighten down the wing screw firmly.
6.1.3 Mounting the Control Handle
13
9
11
12
7
13
0000-GXX-0511-A0
10
► Take out the screw (9) – the nut (10) remains
in the control handle (11).
► Push the control handle onto the handlebar (7)
until the holes (13) line up – the throttle trig‐
ger (12) must point towards the gearbox.
► Insert the screw (9) and tighten it down firmly.
6 Mounting the Bike Handle English
0458-436-0121-B 9

6.1.4 Fitting the Throttle Cable
NOTICE
Do not kink the throttle cable or lay it in tight radii
– make sure the throttle trigger moves freely.
15
15
15
14
14
0000-GXX-0512-A1
► Position the clamp (15) and handle sup‐
port (14) against the drive tube.
► Close the throttle cable retainer (15). The
retainer (15) snaps into place.
6.1.5 Adjusting the Throttle Cable
► Check adjustment of throttle cable – see chap‐
ter on "Adjusting the Throttle Cable".
6.1.6 Swiveling the Handlebar
Transport position
3
7
90°
0000-GXX-0513-A1
► Loosen the wing screw (3) and unscrew it until
the handlebar (7) can be rotated.
► Rotate the handlebar 90° counterclockwise
and then swing the handles down.
► Tighten down the wing screw (3) firmly.
Working position
► Reverse the sequence described above to
swing the handles up and turn the handlebar
clockwise.
7 Adjusting the Throttle
Cable
It may be necessary to correct the adjustment of
the throttle cable after assembling the machine
or after a prolonged period of operation.
Adjust the throttle cable only when the unit is
completely and properly assembled.
English 7 Adjusting the Throttle Cable
10 0458-436-0121-B

002BA655 KN
► Set the throttle trigger to the full throttle posi‐
tion.
► Carefully rotate the screw in the throttle trigger
in the direction of the arrow until you feel initial
resistance. Then rotate it another half turn in
the same direction.
8 Fuel
Your engine requires a mixture of gasoline and
engine oil.
WARNING
For health reasons, avoid direct skin contact with
gasoline and avoid inhaling gasoline vapor.
8.1 STIHL MotoMix
STIHL recommends the use of STIHL MotoMix.
This ready-to-use fuel mix contains no benzol or
lead, has a high octane rating and ensures that
you always use the right mix ratio.
STIHL MotoMix uses STIHL HP Ultra two-stroke
engine oil for an extra long engine life.
MotoMix is not available in all markets.
8.2 Mixing Fuel
NOTICE
Unsuitable fuels or lubricants or mix ratios other
than those specified may result in serious dam‐
age to the engine. Poor quality gasoline or
engine oil may damage the engine, sealing rings,
hoses and the fuel tank.
8.2.1 Gasoline
Use only high-quality brand-name gasoline with
a minimum octane rating of 90 – leaded or unlea‐
ded.
Gasoline with an ethanol content of more than
10% can cause running problems in engines with
a manually adjustable carburetor and should not
be used in such engines.
Engines equipped with M-Tronic deliver full
power when run on gasoline with an ethanol con‐
tent of up to 25% (E25).
8.2.2 Engine Oil
If you mix the fuel yourself, use only STIHL two-
stroke engine oil or another high-performance
engine oil in accordance with JASO FB, JASO
FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L-
EGD.
STIHL specifies STIHL HP Ultra two-stroke
engine oil or an equivalent high-performance
engine oil in order to maintain emission limits
over the machine’s service life.
8.2.3 Mix Ratio
STIHL 50:1 two-stroke engine oil: 50 parts gaso‐
line to 1 part oil
8.2.4 Examples
Gasoline STIHL engine oil 50:1
Liters Liters (ml)
1 0.02 (20)
5 0.10 (100)
10 0.20 (200)
15 0.30 (300)
20 0.40 (400)
25 0.50 (500)
► Use a canister approved for storing fuel. Pour
oil into canister first, then add gasoline and
mix thoroughly.
8.3 Storing Fuel
Store fuel only in approved safety-type fuel can‐
isters in a dry, cool and safe location protected
from light and the sun.
Fuel mix ages – only mix sufficient fuel for a few
weeks work. Do not store fuel mix for longer than
30 days. Exposure to light, the sun, low or high
temperatures can quickly make the fuel mix
unusable.
STIHL MotoMix may be stored for up to 2 years
without any problems.
► Thoroughly shake the mixture in the canister
before fueling your machine.
WARNING
Pressure may build up in the canister – open it
carefully.
► Clean the fuel tank and canister from time to
time.
8 Fuel English
0458-436-0121-B 11

Dispose of remaining fuel and cleaning fluid
properly in accordance with local regulations and
environmental requirements.
9 Fueling
9.1 Preparations
0000-GXX-0476-A0
► Before fueling, clean the filler cap and the area
around it to ensure that no dirt falls into the
tank.
► Position the machine so that the tank cap
faces up.
9.2 Opening the Tank Cap
002BA447 KN
► Turn the cap counterclockwise until it can be
removed from the tank opening.
► Remove the tank cap.
9.3 Filling Up with Fuel
Take care not to spill fuel while fueling and do
not overfill the tank.
STIHL recommends you use the STIHL filler noz‐
zle for fuel (special accessory).
► Fill up with fuel.
9.4 Closing the Tank Cap
002BA448 KN
► Place the cap in the opening.
► Turn the cap clockwise as far as stop and
tighten it down as firmly as possible by hand.
10 Starting / Stopping the
Engine
10.1 Controls
10.1.1 Version with Loop Handle
2
1
3
0000-GXX-0477-A0
1 Throttle trigger lockout
2 Throttle trigger
3 Stop switch with Run and Stop positions.
Depress the stop switch (…) to switch off the
ignition – see "Function of stop switch and
ignition system".
English 9 Fueling
12 0458-436-0121-B

10.1.2 Version with Bike Handle
3
1
2
0000-GXX-0494-A0
1 Throttle trigger lockout
2 Throttle trigger
3 Stop switch with Run and Stop positions.
Depress the stop switch (…) to switch off the
ignition – see "Function of stop switch and
ignition system".
10.1.3 Function of stop switch and ignition
system
The ignition is switched off and the engine stop‐
ped when the stop switch is pressed. The stop
switch returns automatically to the Run position
when it is released: The ignition is switched on
again after the engine stops – the engine is then
ready to start.
10.2 Starting the Engine
0000-GXX-0478-A0
► Press the manual fuel pump bulb (9) at least
five times – even if the bulb is already filled
with fuel.
► Press in the choke knob (8) and turn it to the
position that suits the engine temperature:
gif the engine is cold
<for warm start – also use this position if the
engine has been running but is still cold.
The choke knob must engage in position.
10.2.1 Cranking
0000-GXX-1316-A0
10 Starting / Stopping the Engine English
0458-436-0121-B 13

0000-GXX-1319-A0
► Place the power tool on the ground so that it
rests on the machine support: Check that the
working tool is not touching the ground or any
other obstacles – see also "Starting / Stopping
the Engine" in the KombiTool instruction man‐
ual.
► Make sure you have a safe and secure foot‐
ing.
► Hold the unit with your left hand and press it
down firmly – your thumb should be under the
fan housing.
NOTICE
Do not stand or kneel on the drive tube.
0000-GXX-1318-A0
► Hold the starter grip with your right hand.
► Pull the starter grip slowly until you feel it
engage and then give it a brisk strong pull.
NOTICE
Do not pull out the starter rope all the way – it
might otherwise break.
► Do not let the starter grip snap back. Guide it
slowly back into the housing so that the starter
rope can rewind properly.
► Continue cranking until the engine runs.
10.2.2 As soon as the engine runs
0000-GXX-1558-A0
► Press down the throttle trigger lockout and
open the throttle – the choke knob moves to
the run position F. After a cold start, warm up
the engine by opening the throttle several
times.
WARNING
There is a risk of injury if the KombiTool runs
when the engine is idling. Adjust the carburetor
so that the KombiTool does not run when the
engine is idling – see “Adjusting the Carburetor”.
Your machine is now ready for operation.
10.3 Stopping the Engine
► Depress the momentary contact stop switch –
the engine stops – release the stop switch – it
springs back to the run position.
10.4 Other Hints on Starting
Engine stalls in cold start position g or under
acceleration.
►Move the choke knob to < and continue
cranking until the engine runs.
Engine does not start in warm start position <
►Move the choke knob to g and continue
cranking until the engine runs.
If the engine does not start
► Check that all settings are correct.
► Check that there is fuel in the tank and refuel if
necessary.
► Check that the spark plug boot is properly con‐
nected.
► Repeat the starting procedure.
Engine is flooded
►Move the choke knob to F and continue crank‐
ing until the engine runs.
English 10 Starting / Stopping the Engine
14 0458-436-0121-B

Fuel tank run until completely dry
► After refueling, press the manual fuel pump
bulb at least five times – even if the bulb is
already filled with fuel.
► Set the choke lever to suit the engine temper‐
ature.
► Now start the engine.
11 Operating Instructions
11.1 During break-in period
A factory-new machine should not be run at high
revs (full throttle off load) for the first three tank
fillings. This avoids unnecessary high loads dur‐
ing the break-in period. As all moving parts have
to bed in during the break-in period, the frictional
resistances in the engine are greater during this
period. The engine develops its maximum power
after about 5 to 15 tank fillings.
11.2 During Operation
After a long period of full throttle operation, allow
the engine to run for a short while at idle speed
so that engine heat can be dissipated by the flow
of cooling air. This protects engine-mounted
components (ignition, carburetor) from thermal
overload.
11.3 After Finishing Work
Storing for a short period: Wait for the engine to
cool down. Empty the fuel tank and keep the
machine in a dry place, well away from sources
of ignition, until you need it again. For longer out-
of-service periods – see "Storing the Machine".
12 Replacing the Air Filter
Filters have an average life of more than a year.
Do not remove the filter cover or replace the air
filter as long as there is no noticeable loss of
power.
12.1 If there is a noticeable loss of
engine power
1
1
0000-GXX-0482-A0
2
3
4
►Turn the choke knob to g.
► Loosen the screws (1).
► Remove the filter cover (2).
► Clean away loose dirt from around the filter.
► Remove the filter element (3).
► Replace dirty or damaged filter element (3).
► Replace any damaged parts.
12.2 Installing the Filter Element
► Install the filter element (3) in the filter housing
and fit the cover.
► Insert the screws (1) and tighten them down
firmly.
13 Adjusting the Carburetor
The carburetor has been set at the factory to pro‐
vide an optimum fuel-air mixture under most
operating conditions.
13.1 Adjusting Idle Speed
0000-GXX-0495-A0
Engine stops while idling
► Warm up the engine for about 3 minutes.
► Turn the idle speed screw (LA) slowly clock‐
wise until the engine runs smoothly – the
attachment must not run.
Attachment runs when engine is idling
► Turn the idle speed screw (LA) slowly counter‐
clockwise until the cutting attachment stops
running and then turn the screw about another
1/2 to 3/4 turn in the same direction.
WARNING
If the attachment continues to run when the
engine is idling, have your machine checked and
repaired by your servicing dealer.
14 Spark Plug
► If the engine is down on power, difficult to start
or runs poorly at idle speed, first check the
spark plug.
11 Operating Instructions English
0458-436-0121-B 15

► Fit a new spark plug after about 100 operating
hours – or sooner if the electrodes are badly
eroded. Install only suppressed spark plugs of
the type approved by STIHL – see "Specifica‐
tions".
14.1 Removing the Spark Plug
3
2
1
0000-GXX 0537-A0
► Remove the cover (1).
► Pull off the spark plug boot (2).
► Unscrew the spark plug (3).
14.2 Checking the Spark Plug
000BA039 KN
A
► Clean dirty spark plug.
► Check electrode gap (A) and readjust if neces‐
sary – see "Specifications".
► Rectify the problems which have caused foul‐
ing of the spark plug.
Possible causes are:
–Too much oil in fuel mix.
–Dirty air filter.
–Unfavorable running conditions.
1
000BA045 KN
WARNING
Arcing may occur if the adapter nut (1) is loose
or missing. Working in an easily combustible or
explosive atmosphere may cause a fire or an
explosion. This can result result in serious inju‐
ries or damage to property.
► Use resistor type spark plugs with a properly
tightened adapter nut.
14.3 Installing the Spark Plug
► Screw the spark plug (3) into the cylinder.
► Tighten down the spark plug (3) with the com‐
bination wrench.
► Press the boot (2) firmly onto the spark plug.
► Fit the cover (1) and screw it down firmly.
15 Storing the Machine
For periods of about 3 months or longer
► Drain and clean the fuel tank in a well ventila‐
ted area.
► Dispose of fuel properly in accordance with
local environmental requirements.
► Run the engine until the carburetor is dry – this
helps prevent the carburetor diaphragms stick‐
ing together.
► Thoroughly clean the machine.
► Remove, clean and check the attachment.
Coat metal parts with corrosion inhibiting oil.
► Store the machine in a dry and secure location
Keep out of the reach of children and other
unauthorized persons.
English 15 Storing the Machine
16 0458-436-0121-B

16 Maintenance and Care
The following intervals apply for normal operating
conditions. If your daily working time is longer or
operating conditions are difficult (very dusty work
area, etc.), shorten the specified intervals accord‐
ingly.
before starting work
after finishing work or daily
after each refueling stop
weekly
monthly
every 12 months
if problem
if damaged
as required
Complete machine Visual inspection (condi‐
tion, leaks)
X X
Clean X
Replace any damaged
parts
X X
Control handle Function test X X
Air filter Visual inspection X X
Replace1) X
Manual fuel pump (if fit‐
ted)
Check X
Have repaired by servic‐
ing dealer2)
X
Pickup body (filter) in fuel
tank
Have checked by servic‐
ing dealer2)
X
Have replaced by serv‐
icing dealer2)
X X X
Fuel tank Clean X X
Carburetor Check idle adjustment –
the working/cutting
attachment must not run
X X
Adjust idle speed X
Spark plug Adjust electrode gap X
Replace after every 100
operating hours
Cooling air inlet Visual inspection X
Clean X
Cylinder fins Have cleaned by servic‐
ing dealer2)
X
Valve clearance If power is low or crank‐
ing effort very high, have
valve clearance checked
and, if necessary, adjus‐
ted by servicing dealer2)
X X
Combustion chamber Have cleaned after
every 150 hours of oper‐
ation by servicing
dealer2)
X
All accessible screws and
nuts (not adjusting
screws)
Re-tighten X
Antivibration elements Check X X X
16 Maintenance and Care English
0458-436-0121-B 17

The following intervals apply for normal operating
conditions. If your daily working time is longer or
operating conditions are difficult (very dusty work
area, etc.), shorten the specified intervals accord‐
ingly.
before starting work
after finishing work or daily
after each refueling stop
weekly
monthly
every 12 months
if problem
if damaged
as required
Have replaced by serv‐
icing dealer2)
X
Safety labels Replace X
1)Only if there is a noticeable loss of engine power2)STIHL recommends an authorized STIHL servic‐
ing dealer.
17 Minimize Wear and Avoid
Damage
Observing the instructions in this manual helps
reduce the risk of unnecessary wear and dam‐
age to the power tool.
The power tool must be operated, maintained
and stored with the due care and attention
described in this owner's manual.
The user is responsible for all damage caused by
non-observance of the safety precautions, oper‐
ating and maintenance instructions in this man‐
ual. This includes in particular:
–Alterations or modifications to the product not
approved by STIHL.
–Using tools or accessories which are neither
approved or suitable for the product or are of a
poor quality.
–Using the product for purposes for which it
was not designed.
–Using the product for sports or competitive
events.
–Consequential damage caused by continuing
to use the product with defective components.
17.1 Maintenance Work
All the operations described in the "Maintenance
Chart" must be performed on a regular basis. If
these maintenance operations cannot be per‐
formed by the owner, they should be performed
by a servicing dealer.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer. STIHL dealers are
regularly given the opportunity to attend training
courses and are supplied with the necessary
technical information.
If these maintenance operations are not carried
out as specified, the user assumes responsibility
for any damage that may occur. Among other
parts, this includes:
–Damage to the engine due to neglect or defi‐
cient maintenance (e.g. air and fuel filters),
incorrect carburetor adjustment or inadequate
cleaning of cooling air inlets (intake ports, cyl‐
inder fins).
–Corrosion and other consequential damage
resulting from improper storage.
–Damage to the machine resulting from the use
of poor quality replacement parts.
17.2 Parts Subject to Wear and Tear
Some parts of the power tool are subject to nor‐
mal wear and tear even during regular operation
in accordance with instructions and, depending
on the type and duration of use, have to be
replaced in good time. Among other parts, this
includes:
–Clutch
–Filters (air, fuel)
–Rewind starter
–Spark plug
English 17 Minimize Wear and Avoid Damage
18 0458-436-0121-B

18 Main Parts
21
22
10
9
10
8
9
11
13
12
14
0000-GXX-0496-A0
15
20
19
15
8
16
17
18
21
22
3
2
1
45
6
#
7
14
1 Tank cap
2 Carburetor adjusting screws
3 Starter grip
4 Manual fuel pump
5 Cover
6 Muffler
7 Machine support
8 Throttle trigger
9 Stop switch
10 Throttle trigger lockout
11 Bike handle (handlebar)
12 Handle support
13 Wing screw
14 Throttle cable retainer
15 Carrying ring
16 Choke lever
17 Air filter cover
18 Fuel tank
19 Loop handle
20 Barrier bar
21 Coupling sleeve
22 Wing screw
# Serial Number
19 Specifications
19.1 Engine
19.1.1 KM 111 R
Single cylinder four-stroke engine with mixture
lubrication
Displacement: 31.4 cc
Bore: 40 mm
Stroke: 25 mm
Engine power to
ISO 8893:
1.05 kW
(1.4 bhp) at
8,000 rpm
Idle speed: 2,800 rpm
Cut-off speed
(rated):
9,500 rpm
Valve clearance
Inlet valve: 0.10 mm
Exhaust valve: 0.10 mm
19.1.2 KM 131, KM 131 R
Single cylinder four-stroke engine with mixture
lubrication
Displacement: 36.3 cc
Bore: 43 mm
Stroke: 25 mm
Engine power to
ISO 8893:
1.40 kW
(1.9 bhp) at
8,500 rpm
Idle speed: 2,800 rpm
Cut-off speed
(rated):
9,500 rpm
Valve clearance
Inlet valve: 0.10 mm
Exhaust valve: 0.10 mm
19.2 Ignition System
Electronic magneto ignition
Spark plug (resis‐
tor type):
NKG CMR 6H
Electrode gap: 0.5 mm
19.3 Fuel System
All position diaphragm carburetor with integral
fuel pump
Fuel tank capacity: 710 cc (0.71 l)
19.4 Weight
dry, without KombiTool
KM 111 R 4.4 kg
KM 131: 4.8 kg
KM 131 R: 4.4 kg
19.5 Features
R Loop handle
18 Main Parts English
0458-436-0121-B 19

19.6 Noise and Vibration Data
19.6.1 with KombiTool
For version see "Approved KombiTools".
For further details on compliance with Vibration
Directive 2002/44/EC visit www.stihl.com/vib.
Noise and vibration data measurements include
idling and rated maximum speed in the following
ratios.
FCB‑KM, FCS‑KM, FH‑KM, FS‑KM,
RG-KM and HT‑KM
1 to 1
HL‑KM 1 to 4
BF‑KM, BG‑KM, KB‑KM and
KW‑KM
1 to 6
The exact noise and vibration specifications
depend on the KombiTool being used and are
described in the KombiTool’s instruction manual.
19.6.2 Sound pressure level Lp to
EN ISO 10517, ISO 11201, ISO 22868
KM 111 R: 92 dB(A) ... 99 dB(A)
KM 131: 94 dB(A) ... 100 dB(A)
KM 131 R: 92 dB(A) ... 101 dB(A)
19.6.3 Sound power level Lw to ISO 3744,
ISO 10517, ISO 22868
KM 111 R: 108 dB(A)
KM 131: 109 dB(A) ... 110 dB(A)
KM 131 R: 109 dB(A) ... 110 dB(A)
19.6.4 Sound power level Lw to ISO 3744,
ISO 10517, ISO 22868
KM 111 R: 105 dB(A) ... 110 dB(A)
KM 131: 106 dB(A) ... 108 dB(A)
KM 131 R: 106 dB(A) ... 110 dB(A)
19.6.5 Vibration measurement ahv,eq to
ISO 8662, ISO 10517, ISO 11789,
ISO 20643, ISO 22867
Left handle
KM 111 R: 2.6 m/s2 ... 7.2 m/s2
KM 131: 2.3 m/s2 ... 5.0 m/s2
KM 131 R: 3.4 m/s2 ... 6.1 m/s2
Right handle
KM 111 R: 2.7 m/s2 ... 6.4 m/s2
KM 131: 2.4 m/s2 ... 4.2 m/s2
KM 131 R: 3.3 m/s2 ... 6.5 m/s2
The K‑factor in accordance with Directive
2006/42/EC is 2.0 dB(A) for the sound pressure
level and sound power level; the K‑factor in
accordance with Directive 2006/42/EC is
2.0 m/s2 for the vibration level.
19.7 REACH
REACH is an EC regulation and stands for the
Registration, Evaluation, Authorisation and
Restriction of Chemical substances.
For information on compliance with the REACH
regulation (EC) No. 1907/2006 see
www.stihl.com/reach.
19.8 Exhaust Emissions
The CO2value measured in the EU type approval
procedure is specified at www.stihl.com/co2.
The measured CO2value was determined on a
representative engine in accordance with a
standardized test procedure under laboratory
conditions and does not represent either an
explicit or implied guarantee of the performance
of a specific engine.
The applicable exhaust emission requirements
are fulfilled by the intended usage and mainte‐
nance described in this instruction manual. The
type approval expires if the engine is modified in
any way.
20 Maintenance and Repairs
Users of this machine may only carry out the
maintenance and service work described in this
user manual. All other repairs must be carried
out by a servicing dealer.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer. STIHL dealers are
regularly given the opportunity to attend training
courses and are supplied with the necessary
technical information.
When repairing the machine, only use replace‐
ment parts which have been approved by STIHL
for this power tool or are technically identical.
Only use high-quality replacement parts in order
to avoid the risk of accidents and damage to the
machine.
STIHL recommends the use of original STIHL
replacement parts.
Original STIHL parts can be identified by the
STIHL part number, the { logo and the
STIHL parts symbol K (the symbol may appear
alone on small parts).
21 Disposal
Observe all country-specific waste disposal rules
and regulations.
English 20 Maintenance and Repairs
20 0458-436-0121-B