Husqvarna X Series 125bvx Manual

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115277126 Rev. 2 5/1/10
FUEL HANDLING
Fuel mixtureCAUTION! The machine is equipped with
a two-- stroke engine and must always be
run using a mixture of petrol and two--
stroke engine oil. It is important to accu-
rately measure the amount of oil to be
mixed to ensure that the correct mixture is
obtained. When mixing small amounts of
fuel, even small inaccuracies can drastical-
ly affect the ratio of the mixture.
Petrol
CAUTION! Always use a good quality
petrol/oil mixture (at least 90 octane).
Use low-- emission petrol, also known as
alkylate petrol, if it is available.
S The lowest octane recommended is 90.
If you run the engine on a lower octane
than 90, it can result in knocking. This
gives rise to a high engine temperature,
which can result in serious engine damage.
S When working at continuous high revs, a
higher octane rating is recommended.
Tw o -- s t r o k e o i lSFor best results and performance, use
HUSQVARNA two-- stroke oil, which is
specially formulated for our two-- stroke
engines. Mixture 1:50 (2%).
S If HUSQVARNA two--stroke oil is not avail-
able, you may use another two-stroke oil of
good quality that is intended for air cooled
engines. Contact your dealer when select-
ing an oil. Mixing ratio 1:33 (3%).
S Never use two-- stroke oil intended for
water-- cooled outboard engines,
sometimes referred to as outboard oil.
S Never use oil intended for four-- stroke
engines.
WARNING:Always ensure
there is adequate ventilation when
handling fuel.
SAlways start byfilling halfthe amount ofthe gasoline to be used. Then add the
entire amount of oil. Mix (shake) the fuel
mixture. Add the remaining amount of
gasoline.
S Mix (shake) the fuel mixture thoroughly
before filling the machine’s fuel tank.
S Do not mix more than one month’s sup-
ply of fuel at a time.
S If the machine is not used for some time,
the fuel tank should be emptied and
cleaned.
WARNING:The catalytic con-
verter muffler gets very hot during
and after use. This also applies
during idling. Be aware of the fire
hazard, especially when working
near flammable substances and/or
vapors.
Fueling
WARNING:Taking the following
precautions, will lessen the risk of
fire:
Do not smoke or place hot objects
near fuel.
Always shut off the engine before
refueling.
Always stop the engine and let it
cool for a few minutes before
refueling.
When refueling, open the fuel cap
slowly so that any excess pressure
is released gently.
Tighten the fuel cap carefully after
refueling.
Always move the machine away
from the refueling area before
starting.
MixingS Always mix the gasoline and oil in a
clean container intended for fuel.
Petrol,
litre Tw o -- st r o k e o i l , l i t r e
2% (1:50) 3% (1:33)
50 ,1 00 ,1 5
10 0,200,30
15 0,300,45
20 0,400,60 
						

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115277126 Rev. 2 5/1/10
STARTING AND STOPPING
Pull starter handle until engine attempts to
run, but no more than 3 pulls. Move choke
to ½ position and pull the cord until the en-
gine starts and runs. Allow the engine to
warm up for approximately 10 seconds;
then, move the choke to the OFF CHOKE
(opened) position.
NOTE:If engine dies, return blue engine
choke lever to the closed position and
repeat starting steps.
Warm engineWith a warm engine, squeeze and hold the
throttle trigger. Move choke to ½position.
Pull starter rope sharply while squeezing
throttle trigger until engine runs. Move the
choke to the OFF CHOKE (opened)
position.
StoppingTo stop the engine, push and release the
engine STOP switch (S). The switch will
automatically return to the ON position.
Wait 7 seconds before attempting to restart
unit to allow switch to reset.
Starting and stopping
Cold enginePrimer bulb: Press the primer bulb 10
times until fuel begins to fill the bulb. The
primer bulb need not be completely filled.
Choke: Move the blue engine choke lever
over to the FULL CHOKE (closed) position.
Starting: Hold the body ofthe machine on
the ground using your left hand
( CAUTION! Not with your foot!).
Firmly grip the starter rope handle with
your right hand. DO NOT squeeze
throttle trigger. Slowly pull out the cord
until you feel some resistance (the starter
pawls grip); then quickly and powerfully
pull the cord.
CAUTION! Do not pull the starter cord all
the way out and do not let go of the starter
handle when the cord is fully extended.
This can damage the machine.
WARNING:Never start the blower
if the inlet cover is not closed, is
damaged or cannot be closed
(except if the vacuum tube is fitted).
S
WARNING:Never wrap the starter
cord around your hand.
S Clean the area around the fuel cap.
Contamination in the tank can cause
operating problems.
S Ensure that the fuel is well mixed by shak -
ing the container before filling the tank. Min. 10 ft.
(3 m) 
						

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USING THE BLOWER
The blower tube (T) has a pegged slot
mounting system to the unit. To install
or remove the blower tube (or collection
bag tube for the 125BV
X-- SERIES), loosen
the tube clamp bolt (do not remove nuts
from bolt). Align slot in the blower air
outlet with the raised rib on the tube
and insert tube. Tighten tube clamp bolt.
The nozzles (U) have a bayonet mount for
connection to the blower tube. Air is chan-
neled through the blower tube to the
nozzles, where the air discharge velocity
increases and the air stream discharge pat-
tern is formed to provide best performance.
The length of the blower tube can be ad-
justed by twisting the nozzle to the left to
disengage the bayonet mount and sliding
the nozzle to the appropriate position.
Twist the nozzle to the right until a click is
felt to re-- secure the nozzle.
BlowingBefore you begin blowing, put on the re-
quired safety equipment.
125BVX--SERIEScan be used with a shoul-
der strap for extra comfort. The strap
should be worn over the shoulder as
shown.
To blow away debris on the
ground
Fitting the blower tube and nozzle
on the blower
WARNING:When fitting the blow -
er tube and nozzle, the engine must
be switched off.
U
T
WARNING:When working with
the blower, wear the required per-
sonal safety equipment:
1. Hearing protection.
2. Eye protection.
3. Protective gloves.
4. Face mask in dusty environments.WARNING:Never point the blower
nozzle at people or animals. The
high -- velocity air stream can contain
particles that may cause serious
injury, especially if the blower has
previously been used for vacuuming.
Be careful, particularly if left hand
operation is applied. Avoid any di -
rect body contact with inlet cover
area. Keep jewelry, loose clothing,
or clothing with loosely hanging
straps, ties, tassels, etc., away from
inlet cover area. 
						

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USING THE BLOWER
1. Open the collection bag. Insert the
collection bag tube from inside the bag to
fit in the vacuum inlet opening of the bag
as shown. Ensure elastic is seated in
groove. Close the zipper on the bag.
2. Remove the blower tube and install the collection bag tube. Tighten tube clamp
bolt. Attach the carrying strap to the
collection bag loops.
3. Align arrows on lower vacuum tube and
upper vacuum tube. Push lower vacuum
tube into upper vacuum tube until the lower
tube is securely seated in the upper tube
(about 3 inches/7 cm). Permanently as -
semble the two tubes together with the
supplied screw.
4. Open the cover on the side of the blower by using a screwdriver to pry up under the
edge of the cover on the side opposite the
hinge (indicated by arrow on inlet cover).
5. Press the vacuum tubes in the large
opening at the underside of the blower
and align the tabs with the slots in the
tube. Turn it until the bayonet mount
locks (lock symbols align).
Start the blower as described in the Starting
and Stopping section. Work according to the
following instructions:
1. Never blow air toward fixed objects such
as walls, large rocks, automobiles and
fences.
2. When working inside corners, blow from
the corner and inward toward the center of
the work area. Otherwise, debris can fly
up in your face and cause eye injury.
3. Never point the blower nozzle at delicate
plants.
Standard nozzleThe standard nozzle (V) is included with
the 125B, 125BX-- SERIESand 125BVX--SE -
RIES. When greater accuracy and high air
stream concentration is desired, use the
standard nozzle.
High -- velocity nozzleThe high-- velocity nozzle (W) is an acces-
sory of the blower (included with the
125B
X-- SERIESand 125BVX-- SERIES).
When a wider air stream and greater air
velocity is desired, use the high-- velocity
nozzle.
To vacuum debris from the
ground (125B
X--SERIESand
125BV
X--SERIES)
Fitting the collection bag with the
various vacuum tubes
The vacuuming device is an accessory (in-
cluded with the 125BVX-- SERIES).
W
WARNING:When fitting the
tubes to the blower, the engine
must be switched off.
WARNING:Never start the blower
if the inlet cover is not closed, is
damaged or cannot be closed
(except if the vacuum tube is fitted).
WARNING:Do not operate the
blower while standing on a ladder or
a stand.
V 
						

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USING THE BLOWER
When operating the blower, the collection
bag must be supported by the shoulder
strap. The strap should be worn over the
shoulder as shown.
WARNING:Always check that
the collection bag is intact and the
zipper is closed before starting the
blower. Never use a damaged bag.
There is risk of injury due to flying
debris. Be careful, particularly if left
hand operation is applied. Avoid any
direct body contact with the ex-
haust outlet area.
WARNING:Never start the blower
if the inlet cover is not closed, is
damaged or cannot be closed
(except if the vacuum tube is fitted).
WARNING:Do not operate the
blower while standing on a ladder or
a stand.
Start the blower as described in the Starting
and Stopping section. Work according to the
following instructions:
1. Do not vacuum large solid objects that can damage the fan, such as wood, cans
(tins) or lengths of string or ribbon.
2. Do not let the vacuum tube strike the
ground.
3. The collection bag can be emptied by first
stopping the unit and then opening the zip-
per on the side.
VacuumingBefore vacuuming, put on the required
safety equipment.
WARNING:When working with
the blower, wear the required per-
sonal safety equipment:
1. Hearing protection.
2. Eye protection.
3. Protective gloves.
4. Face mask in dusty environments. 
						

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MAINTENANCE
Muffler
Some mufflers are fitted with catalytic con-
verters. See the Technical data section to
find out if your machine is equipped with a
catalytic converter.
The muffler is designed to dampen the
noise level and to direct the exhaust fumes
away from the user. The exhaust fumes
are hot and can contain sparks, which can
result in fire if the exhaust fumes are
directed towards a dry and flammable
material.
Some mufflers are equipped with a special
spark arresting screen (Y). If your machine
is fitted with this type of screen, it should
be cleaned regularly. To access the
screen, remove the outlet cover on the
front of the muffler. Use a wire brush to
clean the screen. On mufflers without a
catalytic converter the screen should be
cleaned weekly, or replaced if necessary.
On mufflers fitted with a catalytic converter
the screen should be checked and cleaned
monthly. If the screen is damaged it
should be replaced. If the screen is fre-
quently blocked, this can be a sign that the
function of the catalytic converter is im-
paired. Contact your dealer to inspect
the muffler. A blocked screen will cause
the engine to overheat resulting in damage
to the cylinder and piston.
CarburetorYour Husqvarna product has been designed
and manufactured to specifications that re-
duce harmful emissions. After the engine
has used 8-- 10 tanks of fuel, the engine will
be run-- in. To ensure that it continues to run
at peak performance and to minimize harm-
ful exhaust emissions after the run-- in peri-
od, ask your servicing dealer to adjust your
carburetor.
Function
S The carburetor governs the engine’s
speed via the throttle control. Air and fuel
are mixed in the carburetor.
S The T-- screw (X) regulates the throttle
setting at idle speed. If the T-- screw is
turned clockwise this gives a higher idle
speed; turning it counterclockwise gives a
lower idle speed.
Basic settingSThe basic carburetor settings are ad-
justed during testing at the factory. Fine
adjustment should be carried out by a
skilled technician.
Recommended idle speed:
See “Technical data” section.
Recommended max. speed:
See “Technical data” section.
Fine adjustment of the idle speed -- TAdjust the idle speed using the idle adjust-
ment T-- screw if it is necessary to readjust.
The idle speed is correctly adjusted when
the engine will run smoothly in every posi-
tion.
X
CAUTION! Never use a machine that has
a faulty or loose muffler. Ensure the muffler
bolts are tight.
Maintenance SafetyThe owner is responsible for the perfor-
mance of all required maintenance as
defined in the operator’s manual.
Disconnect the spark plug before perform-
ing maintenance, except carburetor adjust-
ments. 
						

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MAINTENANCE
Air filter
The air filter (CC) must be regularly cleaned
to remove dust and dirt in order to avoid:
S Carburetor malfunctions
S Starting problems
S Loss of engine power
S Unnecessary wear to engine parts
S Excessive fuel consumption
S Elevated content of harmful exhaust
fumes.
Clean the filter every 25 hours, or more
regularly if conditions are exceptionally
dusty.
Cleaning the air filterRemove the air filter cover (DD) and take out
the filter. Wash it clean in warm, soapy water.
Rinse thoroughly. Ensure that the filter is dry
before reinstalling it.
An air filter that has been in use for a long
time cannot be cleaned completely. The
filter must therefore be replaced with a new
one at regular intervals.
CAUTION! A damaged air filter must
always be replaced.
Cooling system
The engine is equipped with a cooling
system for m aintaining the right operating
temperature.
The cooling system consists of the follow-
ing components:
1. Air intake on the starter device (Z).
2. Fan blades on the flywheel (AA).
3. Cooling fins on the cylinder (BB).
4. Cylinder cowling (guides cooling air flow
against cylinder surfaces).
Clean the cooling system by brushing once
a week, or more often, if necessary.
A dirty or blocked cooling system will
cause the blower to overheat and this will
damage the cylinder and piston.
WARNING:Mufflers fitted with
catalytic converters get very hot
duringuseandremainsoforsome
time after stopping. This also ap-
plies at idle speed. Contact can re -
sult in burns to the skin. Remember
theriskoffire!
WARNING:The inside of the
muffler contain chemicals that may
be carcinogenic. Avoid contact with
these elements in the event of a
damaged muffler.
WARNING:Bear in mind that:
Engine exhaust fumes contain car -
bon monoxide, which can cause
carbon monoxide poisoning. For
this reason you should not start or
run the machine indoors, or any -
where that is poorly ventilated.
The exhaust fumes from the engine
are hot and may contain sparks
which can start a fire. Never start
the machine indoors or near flam-
mable material!
Y
Z
AA BB
CCDD 
						

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MAINTENANCE
Spark plug
The spark plug condition is influenced by:
S Incorrect carburetor adjustment.
S An incorrect fuel mixture (too much or in-
correct type of oil).
S Poor quality gasoline and/or oil
S A dirty air filter.
These factors cause deposits on the spark
plug electrodes, which may result in operat-
ing problems and starting difficulties.
If the machine is low on power, difficult to
start or runs poorly at idle speed: always
check the spark plug first before taking
any further action. If the spark plug is dirty,
clean it and check that the electrode gap is
0,6 mm. The spark plug should be replaced
after about a month in operation or earlier if
necessary.
0,6 mm
CAUTION! Always use the recommended
spark plug type! Use of the wrong spark
plug can damage the piston/cylinder.
Maintenance scheduleBelow you will find some general mainte-
nance instructions.
Daily maintenanceS Clean the exterior surfaces of the blower.
S Check that the variable speed control and
the throttle trigger function in a safe man-
ner. Replace damaged parts.
S Check that the stop switch works proper-
ly. Replace if necessary.
S Clean the air filter. Replace if necessary.
S 125B
X-- SERIESand 125BVX-- SERIES:
Check that the inlet cover can be locked
in the closed position. Carefully check
that the fan impeller is clean, especially if
the blower has been used for collecting
debris (vacuuming).
S Check that all nuts and screws are prop-
erly tightened.
S Check that all the housings are free of
cracks. Replace damaged parts.
S 125B
X-- SERIESand 125BVX-- SERIES:
Check that the collection bag is intact and
that the zipper works. Replace it if neces-
sary.
Weekly maintenanceS Check the condition of the starter device,
the starter cord and the tensioning spring.
Replace damaged parts.
S Check the condition of the air intake at
the starter device. Remove debris if it is
clogged.
S Clean the outside of the spark plug. Re-
move it and check the electrode gap. Ad-
just the gap to 0,6 mm, or replace the
spark plug. Use resistor spark plug
Champion RCJ -- 8Y or equivalent.
S Clean the fan blades on the flywheel.
S Clean or replace the spark arresting
screen (not on mufflers with a catalytic
converter).
S Clean the carburetor area.
S Clean the air filter.
Monthly maintenanceSClean the fuel tank.
S Clean the outside of the carburetor and
the area around it.
S Clean the fan blades on the flywheel and
the area around it.
S Check fuel lines for cracks or other dam-
age. Change if necessary.
S Change the fuel filter in fuel tank.
S Check all cables and connections. Re-
place damaged parts.
S Replace the spark plug. Use spark plug
Champion RCJ -- 8Y or equivalent.
S Change the air filter. 
						

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TECHNICAL DATA
Technical data125B 125BX-- SERIES125BVX-- SERIESEngine
Cylinder displacement, cm328 2828
Cylinder bore, mm 353535
Stroke, mm 28,728,728,7
Idle speed, rpm 2800-- 3200 2800-- 3200 2800-- 3200
Max. speed - blowing, rpm: 8600 8600 8600
Max. speed - vacuuming, rpm: -- --7500 7500
Max. engine output, acc. to ISO 8893, kW 0,8 0,80,8
Catalytic converter muffler YesYesYes
Ignition system
Spark plug Champion Champion Champion
RCJ--6Y RCJ--6Y RCJ--6Y
Electrode gap, mm 0,60,60,6
Fuel and lubrication system
Fuel tank capacity, liter 0,50,50,5
Weight
Weight, without fuel but with blower tube
and standard nozzle fitted, kg 4,34,44,4
Noise emissions
(see Note 1)
Sound power level, measured dB(A) 106 106106
Sound power level, guaranteed L
WAdB(A) 107 107107
Sound levels
( see Note 2)
Equivalent sound pressure level at the
operators’ ear, measured according to
ISO 22868, dB(A)
Equipped with blower tubes and
nozzle (original) 949999
Equipped with vacuum tubes (original) -- -- 9999
Vibration levels
(see Note 3)
Equivalent vibration levels (a
hv,eq) at handles,
measured according to ISO 22867, m/s2
Equipped with blower tubes and
nozzle (original) 8,3 8,3 8,3
Equipped with vacuum tubes (original),
left/right -- -- /-- -- 6,4/8,3 6,4/8,3
Note 1: Noise emissions in the environment measured as sound power (L
WA) in conformi-
ty with EC directive 2000/14/EC. Reported sound power level for the machine has been
measured with the original cutting attachment that gives the highest level. The difference
between guaranteed and measured sound power is that the guaranteed sound power also
includes dispersion in the measurement result and the variations between different ma-
chines of the same model according to Directive 2000/14/EC.
Note 2: Reported data for equivalent sound pressure level for the machine has a typical
statistical dispersion (standard deviation) of 1 d B(A).
Note 3: Reported data for equivalent vibration level has a typical statistical dispersion
(standard deviation) of 1 m/s
2. 
						

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TECHNICAL DATA
Fan 125B 125BX-- SERIES125BVX--SERIESTypeRadial fan Radial fan Radial fan
Max. air velocity, m/s (km/h), standard nozzle 60 ( 217) 60 (217) 60 (217)
Max. air velocity, m/s (km/h), high velocity
nozzle* 76 (273) 76 (273) 76 (273)
Air volume -- blowing, m
3/h (cfm) 722 (425) 722 (425) 722 (425)
Air volume -- vacuuming, m
3/h (cfm) -- -- 756 (445) 756 (445)
*optional accessory for some models
Model 125BX-- SERIES, 125BVX-- SERIESApproved accessories Part. no.
Vacuum kit 952 711 913
Model 125B
Approved accessoriesPart. no.
High velocity nozzle 545 119 501
Model 125B, 125B
X-- SERIES, 125BVX-- SERIESApproved accessories
Part. no.
Gutter clean-- out kit 952 711 918
DECLARATION OF CONFORMITY
EC Declaration of Conformity(Only applies to Europe)
We, Husqvarna AB , SE-561 82 Huskvarna, Sw eden, tel: +46-- 36-- 146500, as authorised
representative in the Community, declare that the garden blower/vacuum models Husqvarna
125B, 125B
X-- SERIESand 125BVX-- SERIESwith serial numbers dating from 2009 and
onwards (the year is clearly stated on the rating plate, followed by the serial number), comply
with the requirements of the COUNCIL’S DIRECTIVES:
of 17 May 2006 “relating to machinery” 2006/42/EC;
of 15 December 2004 “relating to electromagnetic compatibility” 2004/108/EC, and applicable
supplements; and
of 8 May 2000 “relating to the noise emissions in the environment” in accordance with Annex
Vof 2000/14/EC . For information relating to noise emissions, see Technical data section.
The following standards have been applied: EN ISO 12100-1/A1:2009, EN ISO
12100-2/A1:2009, CISPR 12:200 7.
SMP, The Swedish Machinery Testing Institute, Fyrisborgsgatan 3 S-- 754 50 Uppsala,
Sweden, has performed voluntary type examination on behalf of Husqvarna AB. The
certificate(s) are numbered: SEC/09/2022.
0 9 -- 1 1 -- 0 1 Ronnie E. Goldman, Director of Engineering
Authorized representative for Husqvarna AB and
responsible for technical documentation