Full Text Searchable PDF User Manual
This manual is intended to be for information purposes only. The manual’s content is
based on the best knowledge available at the time of publication. We put every effort
to correct the mistakes we encountered but we cannot guarantee that all errors have
been found. This is why errors found in this manual cannot be treated as the basis for
any legal claims. Information included in the present publication are the property of
Copying, distributing, and content sharing of the whole text or its parts with third
party is not permitted without Techno-Fly group’s written consent. We retain the
right to make changes without notifying the users. Due to the fact that we make
constant changes in order to improve our products some parts of the manual may not
correspond to the version or the equipment of the purchased product. If this is the
case, please contact Techno-Fly.
We congratulate you on choosing the paramotor with Octagon 190 engine! We know that
you are a person who treats adventure, passion and the beauty of flying as an important
part of life. We are happy that you decided to pursue your passion with our equipment. We
are proud that more and more pilots choose our paramotors in order to realize their
We are pleased to welcome you as our customer.
1.1 Limitation of liability:
Remember! In certain circumstances, paragliding could be extremely dangerous.
An accident on the paraglider could result in severe disability or even death.
Paragliding is allowed only in weather conditions that are not conducive to
The paramotor is only a device that supports the flight of the
paraglider. Thus, in case the engine stops working during the flight, you have to be
always prepared for safe landing.
You should never fly above reservoirs, vast forests or other areas where safe
landing is impossible when the paramotor’s breaks down, you lack fuel or you
experience other unpredicted situations. You should also remember that each
country has its own air traffic regulations. You should read existing regulations
before starting your flights in a given country.
If you want to paraglide with paramotor you must have a license, which can be
obtained by attending special training. Paragliding with paramotor without license
or third party insurance is forbidden. In some countries, you can take off and land
only on the areas specially designated for these purposes. Moreover, radio
communication is often obligatory. If you plan to paraglide get to know about
aviation areas in order to avoid the places where flying is forbidden.
Although we took all necessary precautions in order to provide you with the
equipment that is maximally safe and without structural and material defects, you
must be always ready for safe emergency landing. You should always keep
adequate altitude and distance margin that is indispensible if you want to fly safely
to the landing area.
The fact that the engine at work is extremely dangerous means that using it and
performing any operations with it is forbidden after drinking alcohol.
Paramotor Octagon 190 was designed only for amateur paradliging. The paramotor
is not designed for participating in sport competitions, aerobatics, or stunts. It is
also not designed for commercial purposes. We accept no liability for any financial
losses and lost revenues caused by the paramotor’s breakdown, waiting time for
repair and spare parts, as well as health and property damages incurred by the
It is not allowed to make any modifications or adjustments, to use non-original
spare parts, and to make repairs without the permission and control of the
producer or its authorized representative. Such actions cause the loss of the
warranty rights. They could also lead to problems with the working of the
equipment, serious equipment damage, and severe body damage including the
risks to the pilot’s and the third party’s lives. The pilot is obliged to follow all
instructions that are included in this manual.
1.2 The meaning of symbols used in the manual:
Warning : This indicates the instruction that should be followed if you want to avoid
harming or risking the life of the pilot, mechanic or third party.
Attention : The instruction that should be followed if you want to avoid a severe
engine’s damage. In some cases, not following this instruction could result in health risks.
Important: Information that are important during the exploitation.
Note: Information that help in using the equipment and in its proper maintenance.
Indicates maintenance activities.
Indicates check-up activities.
2. Preparing paramotor for exploitation.
2.1 Package content.
The complete package of Octagon 190 paramotor in standard version includes the following
1. Frame with engine and harness
2. Propeller cage
4. Propeller mounting screws
5. Propeller nut locking washer
6. User’s manual and warranty card
The serial number of the propeller is on the inner surface of its hub and is visible when
separated from the paramotor.
The serial number of the engine
is stamped on
2.2 Assembling paramotor for the first time.
2.2.1 Mounting of the propeller.
The Octagon 190 paramotor’s propeller is mounted with six M6 screws according to DIN912,
8.8 class with ripp-lock washers. The set of propeller mounting screws with the aluminium
washer (propeller thrust) can be found in the side pocket of the harness. Propeller mounting
screws must be screwed cross-wide in two stages: first – using 6 Nm torque – then you
should check blade axial wobbling. The difference between the trail of both tips of the blade
should not exceed 2mm. In second stage, screws must be tightened using 10 Nm torque. If
the difference of the trail exceeds 2mm you should loosen the screws and then tighten them
cross-wide once again but this time using bigger torque on the side of the blade that sticks
out more from the engine. You should not use any washers under the propeller because they
can break off the screws that hold the propeller during the flight.
For mounting of the propeller use allen key 5. Tools are not included in the package.
You should not tighten the screws that hold the propeller by using torque bigger than
2.2.2 Propeller cage mounting.
Delta propeller cage mounting.
We start to mount the propeller cage by inserting 6 carbon connectors into the frame. Next,
after stretching out the cage’s frame with the net, we insert all 4 parts of the cage into
connectors. The next step is inserting protections that connect the cage directly with the
lower part of the frame. When all the elements of the cage are connected you should
remove the wrap by pulling the rope in the lower part of the security net. The last, but very
important activity is mounting three security bands (Velcro), which prevent the cage from
accidental unfastening of the cage (you do not have to pull it very strongly)
After mounting the propeller cage you should once again check if it is correctly mounted
It is recommendable to memorize the exact sequence of all activities.
2.2.3 Harness adjusting.
Adjusting of the harness consists of two steps. First, you adjust the harness with the
paramotor on your back. Second, you make final adjustments with the suspended paramotor
Warning : If you forget to adjust the harness or you do it improperly, it could
cause serious problems during the start or it could even prevent you from taking
off. It could also lead to twisting of the tapes during the flight which could result in
the immediate paraglider’s air dive. When something like this happens at low
altitude it could result in a very dangerous fall on the ground.
Two-stroke engine in Your paramotor requires using oil-petrol mixture in 1:40 ratio during
regular usage and 1:33 when you run it in.
Attention: Remember to use only unleaded petrol with an octane rating minimum 95.
In order to correctly prepare the fuel-oil mixture, you should use a special canister. The
best situation is when the canister is not red because most oils dye fuel in this way. In short,
with a red canister it would be difficult to tell whether the fuel has been already mixed or
Warning : You should not mix the fuel with oil in the paramotor’s fuel tank, especially
if the tank was empty before refueling.
You should only use high quality synthetic oils. Try to find out what oil grades are
available and popular in the place where you live or in the area where you want to fly on a
regular basis. If you choose a particular oil grade try not to change it. If it is necessary, try
to change it as rarely as possible. The Octagon 190 engine is not designed to work with
Warning: Fuel mixed up with oil loses its properties with time. Do not use the mixture
that was prepared a month ago. Try to plan the amount you will need for your flight and
prepare only as much mixture as you need. If you are going to store the paramotor for a
long time, you should empty the tank completely.
Warning! : Fuels are extremely flammable liquids and their fumes are
explosive. You mustn’t use open flame while preparing the mixture, refueling or
when you are close to the place where you store it. You should handle fuel very
carefully. Do it only in well-ventilated places or in the open air.
Warning : It is obligatory to check the working of the gas throttle each
time you want to start up the engine.
Warning : When you start up the engine please bear in mind that if you pull
the rope too strong you could break the locks or break the rope itself. After the
start-up it is recommended to drive the handle with the rope back to the initial
position. You mustn’t drop the handle and let the rope come back to the initial
position with high speed without your control.
This table shows how to prepare the proper ratio of the mixture:
During the run-in 1:33
Regular use 1:40
The majority of contaminations that get inside the fuel tank come from a contaminated
funnel. After filling the tank, petrol immediately evaporates from the funnel surface and it
leaves a thin oil layer. Dust and various small and big molecules stick to this layer. Some of
them get inside the fuel tank because they cannot be stopped by the filter. These
contaminations get into the tank during the next refill. That is why one of the most
important aspects of keeping the tank clean is protecting the funnel from dirt in between
refills. This task is very often neglected by the users.
We strongly recommend to pre-filter the mixture before pouring it into the tank.
Poor quality of the fuel or storing it in dirty containers are the most common causes of
Filter the fuel using manual or electrical pump with the additional fuel filter installed on the
pipe. The filter kit could replace inconvenient funnel. Moreover, it helps to empty the fuel
tank easily, e.g. for transportation or at the end of the season.
4. Starting the engine for the first time.
Warning : If the engine starts working rapidly, and unexpectedly at high
speed (high rpm) it may cause very serious body injuries resulting from getting
hit by the propeller.
Every time you want to start up the engine you must secure the gas throttle in such a way
that it will not be possible to turn it on by accident. You should also check whether the
starter rope is not tangled or jammed, and the carburetor throttle is not left ajar. In case
you need to turn the engine off immediately, the gas throttle should be placed in such a way
that it is possible to reach quickly and easily for the ignition switch.
In order to insert fuel inside WB37 carburetor, while pressing the bulb, you should
delicately press the membrane through the special opening in the carburetor’s cover. In this
way you will be able to open the valve and enable the flow of fuel. When fuel, which is
visible in the fuel pipe, will enter the carburetor you should insert additional small portion of
fuel in order to enrich the mixture for starting the cold engine. It is usually enough to be
pressing the bulb and to press the membrane for no longer than a fraction of a second.
After pulling out the starter’s handle and feeling the first resistance you should energetically
pull the starter’s handle in your direction. You have to pull it a couple of times until the
engines starts running.
When the bulb is not available you should press and hold the membrane through the
special opening in the carburetor’s cover in order to open the valve and to enable the flow of
fuel to the carburetor. While observing the level of fuel in the fuel pipe, you should move the
propeller energetically (right/left, the range of 60
). When fuel enters the carburetor,
you should insert additional small portion of fuel in order to enrich the mixture for starting
the cold engine. After pulling out the starter’s handle and feeling the first resistance you
should energetically pull the starter’s handle in your direction. You have to pull it a couple of
times until the engines starts running.
When you start up the paramotor standing on the ground by pulling the starter, you
should hold the cage’s crossbar, which is next to the starter rope’s block, with another hand.
It is recommended to stabilize the paramotor by putting one foot on the lower part of the
frame. When the engine is working you should perform all further actions (increasing rpm)
while holding the paramotor’s frame, NEVER THE CAGE!
When you start up the paramator on your back, you should focus on driving the rope
and handle downwards along the body. Pulling it forward leads only to bending the
Warning : All engine trials performed when the propeller is spinning must be
undertaken with utmost caution. You mustn’t hold the propeller’s cage! If you do
this the engine’s thrust might bend the cage towards the spinning propeller.
Always make sure whether the propeller’s cage is properly mounted on the frame
and whether it is protected.
Properly regulated and flooded engine starts usually after one or two yanks and works
steadily at idle speed, though immediately after the start-up the speed is much higher than
2000-2200 rpm and decreases during the warm-up. When you have problems with this, the
reason might be:
– too much fuel in the carburetor
Symptoms: When engine starts with a few strokes and cuts out, but with each start-
up attempt engine works a little bit longer and then cuts out, we are dealing with a
too rich mixture. When engine is over-flooded it might be necessary to push slightly
the handle throttle.
Not enough fuel
Symptoms: The engine does not start at all, or works shorter with each start-up till it
ceases to start. In that case one should apply brief fuel „injection”, introducing fuel
back to the carburetor.
Warning: You should not flood the carburetor with additional fuel when the engine is
still warm – it might damage the spark plug isolator or cause problems during the next
Warning! : Never pull out the starter rope to its maximal length.
In the first engine start-ups you should pull the rope gently to its very end so as to
remember its furthest position. This rope should never be pulled that far again. To assure
trouble-free operation of the starter just before yanking you should pull the rope gently till
the first perceivable resistance induced by snapping the hook on the flywheel. It helps you
to avoid “knocks” on triggers and it noticeably extends the time of the trouble-free operation
of the starter.
Warning: After the start-up of the engine you mustn’t (in any case!) pull the starter
handle. Every time you pull the rope while the engine is working the triggers are pushed
towards the cup clutch, which could lead to serious damage of the starter.
4.2 Turning off the engine.
In order to turn off the engine you should push the button on the gas throttle and wait till
the engine stops completely. If you release the button earlier the engine will start up again.
Warning : The Octagon 190 engine is equipped with WG-37 carburetor. This
carburetor is extremely sensitive to the changes in the location of the screw
regulating high Speed – „T”-shaped screw with letter „H” on the carburetor’s
body. Even small change in the location of this screw causes big changes in
You should also be very careful while regulating „L” screw – minimum speed,
because it is responsible for mixture composition during horizontal flight
Emergency engine stop.
In order to turn off the engine you should bend the fuel pipe and wait till the engine stops
completely. If the set is equipped with the fuel tap you should turn it off.
5. The run-in and the engine use.
5.1 New engine check-up on the ground
Every engine in a new paramotor has been already switched on and initially regulated. Due
to the fact that membrane carburetors are sensitive to changes in atmospheric pressure,
humidity etc., the adjustment of the idle speed might be needed. You should perform the
initial run-in on the ground right before the first flight.
When you start up the cold engine you should briefly warm it up (1-2 minutes) on medium
speed. Then increase it to around 4000 rpm and keep like that for around 30 seconds. Next,
you should check the idle speed, and check how the engine reacts to rapid opening of the
throttle. If the engine chokes you should increase the speed again to around 4000 rpm for
around 30 seconds and try to accelerate once again. If the engine is properly regulated and
warmed-up it smoothly reacts to the changes in position of the throttle. If the engine after
warming-up chokes during rapid opening of the throttle you should enrich the idle speed
mixture by delicately loosening the “L” screw .
5.2 The run-in of the new engine on the ground.
After warming-up the new engine you should initially set its speed. In order to do that you
should start up the engine and try to keep the speed at around 4000 rpm for 30 minutes.
After that time you should increase the speed to 6000 rpm and keep it for around 10
Next, you should check whether the engine reacts properly and smoothly to speeding from
idle to maximum. You should also check whether the engine does not choke and does not
have the tendency to cut out.
If you observe any alarming symptoms please contact the distributor or directly our service.
After every flight you should check if all threaded connections, exhaust system parts, and
rubber parts are not loosened, broken etc. Any disturbing symptoms (vibrations, sounds
etc.) should be thoroughly checked. If in doubt, you should contact the service.
5.3 The run-in of the engine in the first hours of its exploitation.
Warning : The greatest threat for the engine is when it is working on too
lean mixture. This leads to rapid temperature growth of the piston crown, and
could result in melting or burning of the piston crown. In such case, serious
damages of cylinder, piston and crankshaft bearing could appear. In practice, it
means very high repair costs. Due to the fact that only the user is responsible
for mixture composition, the producer takes no responsibility for damages
caused by overloading the engine thermally, engine seizure, tearing off the
connecting rod, jamming the piston rings, using inadequate oil, or using not
enough amount of oil!
The run-in during the flight is divided into two stages:
First stage involves making first take-offs and first flights maintaining the lowest possible
speed. Maximum speed must not be reached unless it is absolutely necessary and it should
take as short as possible. High altitudes are not advisable, but if necessary they should be
reached in steps, making pauses while ascending in order to cool the engine. We advise you
to maintain high ascent for no longer than half a minute, then keep lower ascent for about
The first test flight should take no longer than 10-20 minutes. After landing you
should check combustion conditions by checking the condition of the spark plug.
Spark plug evaluation in the engine working previously for a long time at idle speed is
not reliable. For proper evaluation you should turn the engine off after a few minutes on
medium and high speed (horizontal flight) and land on the turned-off engine.
Second stage: If the spark plug has dark color or is black after the test flight, we can
continue flying also using maximum engine power.
Attention : There are only two ways of checking whether the mixture’s
composition is correct! First, taking the temperature of the fumes. Second,
evaluating the state of the spark plug!
5.4 Typical spark plug hues are shown below
During the run-in time a wet and tarry spark plug is a good sign because it means that
the mixture is rich. Petrol in a two-stroke engine is not only a fuel but also a warmth
conductor, which is emitted excessively during the run-in. During the run-in time, we even
advise you to use a too rich mixture at the expense of slightly weaker engine performance.
During the run-in time it is generally recommended to use the engine on differential
speed and not to keep one speed for a long time (e.g. long flight on a steady altitude).
Manipulating gently with the gas throttle during the run-in and acting according to the
guidelines described above will lead to sustained and trouble-free engine running and
significant prolongation of the time before the first repair. If the user intentionally does not
follow the guidelines presented above, it will not cause the loss of any warranty rights or the
engine’s damage, but it is important to bear in mind that preserving the engine in the best
shape during further exploitation depends on how we handle it in the first hours.
The run-in time for the “OCTAGON 190” engine is about 15-20 hours of flight.
The practical way of estimating the length of run-in stage is using up 1 litre bottle of
mixture is too lean
– it could damage
mixture is too rich,
but is correct for
the run-in time
new spark plug –
We advise you to mount the tachometer, which facilitates both evaluating the engine’s
state and basic adjustments. It also has the hour meter.
5.5 Regulating the carburetor during the run-in time.
Before sale every carburetor gets its default, factory settings.
If it works well, you only need to regulate the idle speed because it changes together with
the changes in atmospheric pressure (horizontal screw lifting the throttle lever).
After the warm-up, we set speed on 2100-2200 rpm or so that the engine could work
steadily and would not cut out.
During the run-in time you might feel slight and irregular vibrations when the engine is
below 4000 rpm. It is usually caused by too rich minimum speed mixture (the L screw) and
it usually happens when the surrounding temperature is too high. The similar symptom
appears when the space between the spark plug electrodes is too wide. The difference is
that when the problem is a too rich mixture on minimum speed, the symptom disappears
when the speed is increased, and when the electrodes are too far away or the spark plug is
damaged those symptoms increase along with the speed. This can be prevented by leaning
the mixture slightly by using the L screw (vertical screw with head for flat-blade
screwdriver). You must tighten the screw once, for 5’ clockwise and check how the engine
works. Then, you must perform the test flight with the spark plug check-up.
During the run-in time you should avoid changing high-speed mixture composition (the H
screw) even if the spark plug check-up shows that the mixture is too rich. At this time, your
priority is lubricating and preventing the engine from overheating.
Each newly purchased spark plug has about 1mm space between the
electrodes. You must necessarily reduce it to 0,5mm.
NEVER START THE ENGINE WITHOUT MOUNTING THE PROPELLER. IF THE
ENGINE STARTS WORKING WITHOUT THE BALLAST IT COULD CAUSE IMMEDIATE
AND VERY SERIOUS DAMAGES TO ENGINE.
When the engine is hot, the temperature of some exhaust system parts may exceed
C. Touching the engine, even by accident, may cause serious burns.
The Paramotor with the OCTAGON 190 engine is to be used with 125cm or 130cm
Using other propellers is not recommended. For instance, too „ballasted” ones might lead to
accelerated engine wear. In turn, too „light” propellers might lead to exceeding the
maximum propeller speed limit, overheating and damage of the engine mechanical parts.
Damages caused by using inadequate propellers are not covered by the warranty.
When the paramotor is running with a damaged, unevenly balanced or not
correctly routed propeller, the gear unit components and rubber parts wear off
very quickly. The gear unit damages due to the use of inadequate, damaged,
unevenly balanced and incorrectly routed propeller are not covered by the
6. Pre-flight check-up and adjustments
6.1 Pre-flight paramotor check-up.
Checking up the paramotor before taking off includes obligatory propeller cage mounting
check-up and the gas throttle performance check-up. The propeller check-up means
controlling its mounting and checking for mechanical damages or cracks.
The propeller should rotate steadily, whistles or whizzes indicating blade damage should
not be heard.
Never put your hands into the propeller space when the engine is on, even if
the propeller does not rotate.
Never turn on the engine without mounted and secured propeller cage.
Never leave the paramotor turned on without supervision, especially with the
gas throttle lying on the ground. If you step on it accidentally it may cause serious
Check harness, tapes, joints and carbines. Check the condition of all rubber parts of
the paramotor. Check all the accessible screws - whether they are not broken,
missing, loosened. Check the engine power supply system, filter and fuel pipes –
whether there are no leaks that could lead to sucking-in the „fake” air.
Check the mounting of the engine, the exhaust system, mounting of the suction
murmur silencer, and pay special attention to the condition of rubber parts.
Check the propeller cage ropes, speed ropes and footstool. Make sure that starting
the engine will not cause sucking in other objects by the propeller – i.e. gloves, radio
cables, helmet or loose clothing parts. Make sure that turning the engine on will not
pose any threat to other objects or third party.
Monitoring the engine technical state after each flight is strongly advised. By doing this
you can avoid mistakes during the pre-taking off rush and you can shorten the preparations.
Never perform maximum thrust test with the paramotor standing on the
ground. If you want to do this put the paramotor with the turned off engine on
your back and then turn the engine on.
One of the most dangerous and unpredictable events during the flight is
tearing off the parts of the exhaust system. This usually causes damage to the
propeller and immediate thrust loss. It also leads to immediate preparation for
emergency landing. When the parts of the exhaust system start to fracture it is
usually indicated by a sudden change or increase of sound intensity produced by
the engine. Tearing off or loosing up the parts is indicated by perceivable increase
in vibrations. It leads to exhaust leaks that are indicated by increased noise.
Small capacity engines have small heat capacity, therefore they warm up quickly. After
refueling, flooding and initial start-up (on the ground), 30 seconds on low speed and about
30 seconds on medium speed is enough to prepare the engine. Then the engine can be
turned off in order to finish preparations for the take-off. After the wing is attached and the
pre-start wing monitoring is already performed, we advise you to start up the engine while
keeping it on your back and then to lean forward to perform the high speed test (it should
take a few seconds). It will help you to “push” the rest of the air into fuel system and it will
warm up the engine to the optimal temperature. Moreover, it will enable you to evaluate
how the engine is running on high speed.
6.2 Basic engine adjustments.
WB37 Carburetor adjustments.
The most frequent activity is adjusting the idle speed. Membrane carburetors are quite
sensitive to the changes in atmospheric pressure. It means that there are days when the
engine works properly at idle speed, and days when it works unevenly, cuts out or, for
instance, works on too high speed.
Attention! : All carburetor adjustments should be performed after warming up
the engine (approximately 2-3min on low and medium speed)
If you notice that it takes too much effort for the engine to start and it does not work evenly
on low speed or if it works unsteadily (e.g. has a tendency to cut out), you should correct
minimum speed settings. It is usually enough to adjust the throttle’s position with a screw
(horizontal screw lifting throttle lever), but in some cases it is necessary to change the
composition of the idle speed mixture.
WB37 carburetor has three screws that can be regulated. These are: throttle positioning
screw, idle speed mixture composition screw (L for low speed) and high speed mixture
composition screw (H for high speed).
Default mixture composition screws settings in Octagon 190 engine are:
The L screw unscrewed for 50’ – 1,00’ of the clock face - 1 turn from closed position,
The H screw unscrewed for 1, 00’ – 1, 10’ of clock face from closed position.
Attention : You must not start the engine with the opening smaller than one H
screw turn (the mixture is too lean).
This setting is risky because it could lead to serious engine damage. With a correctly
warmed-up engine you should set the „H” screw in such a way that the engine could reach
maximum speed while opening the throttle completely. You should monitor the speed using
the tachometer. Next, you should unscrew the “H” screw (enrich the mixture) so that the
speed would slightly decrease (about 100-150 rpm). After performing the high speed
regulation you should not use the maximum engine power until you evaluate fuel usage and
spark plug condition and confirm that the composition of the mixture is adequate.
The composition of the minimum speed mixture is set by unscrewing the „L” screw (one
turn) and then evaluating how regularly the engine runs and the level of idle speed. Idle
speed of a properly regulated engine usually range between 2000-2200 rpm and may vary
due to temporary engine temperatures. Adjustments should be performed by means of
slight corrections of screw position (approximately the width of the slot on the circumference
of the screw head). If you observe the following symptoms: after warming up the engine
starts slowly and decreases the speed steadily until the cut out, it floods the spark plug, and
at the same time the slight opening of the throttle makes it easier to start it – you should
make the idle speed mixture leaner by screwing the “L” screw and you should make another
attempt after re-warming up for about 1 minute on medium speed.
If the engine works with large fluctuations on low speed, and it has strong vibrations on idle,
you should slightly unscrew the „L” screw, increasing throttle’s opening by screwing the
throttle buffer screw in order to increase the idle speed.
The symptoms of too rich mixture at idle speed are the following: after starting the cold
engine it works properly for a while and when the temperature increases it starts to work
slower and slower until it cuts out. Opening the throttle before the cut-out increases the
amount of fumes, and the engine reluctantly gains speed. After a while on high speed
(4000-5000 rpm) the engine takes low speed again, but left on it for a short time its speed
would decrease systematically until the cut-out.
Another symptom of too rich idle speed mixture: the engine works properly on low speed in
low temperatures (e.g. right after the start) and has very low speed and tendency to cut out
after warming up significantly (2-3 minutes on minimum 6000 rpm speed).
Engine with too rich idle speed mixture very often starts reluctantly when hot. At the same
time, it starts much better with the throttle opened a little. Sometimes starting the hot
engine without opening the throttle just a little bit may be impossible. In any of these cases
you should make the mixture leaner by screwing the “L” screw slightly.
The symptoms of too lean mixture at idle speed could be:
The tendency to cut out and problems with keeping low speed on cold engine, especially
right after the start. The engine works irregularly, vibrates strongly, stops. Loosening the „L”
screw a bit causes speed decrease, but the engine works more steadily and does not cut
The cold engine very often cuts out after the start and it is impossible to start it again
without a slight re-fueling with the fuel pump. This does not refer to the situation when the
engine was not filled with enough fuel.
After adjusting the composition of idle speed mixture you should perform the high speed
adjustment again – „H” screw.
7. Storing the paramotor and other maintenance operations.
While storing the paramotor in a standing position you should loosen up the fuel tank
stopper. Even small changes in the surrounding temperature may cause significant pressure
changes in the sealed tank. When planning long-term storing of the paramotor, you should
empty the fuel tank completely, completely remove the wires, and the carburetor. It is
extremely dangerous to leave even the tiniest amount of fuel in the sealed tank in highly
sunlit place or other place where intense heating (car trunk etc.) could occur.
You should also remember not to store the paramotor in humid places because it could
influence its technical and visual state. Direct exposition to such conditions is not covered by
7.1 Pre-flight paramotor check-up – daily check-up.
Check and evaluate general state of the paramotor’s parts by looking for cracks,
Check the engine mounting, check the fuel system for leaks, and check the way the
shifter and the throttle work.
Pay special attention to the state of the exhaust system. Check the silencer
mounting, condition of all threaded connections, and rubber shock absorbers.
Check the propeller’s mounting, clean oil deposits, soot and other impurities from the
propeller. Treating the propeller with a piece of cloth will help you to find cracks and
Check the electric installation thoroughly looking for mechanical damage, abrasions,
joints or some disconnections between the elements.
Check the engine starter.
Pay special attention to all leakages, scratches and atypical stains. In case of any
doubts, contact a Techno-Fly representative.
Check the frame and the propeller cage. Check the construction’s geometry. Inspect
thoroughly harness settings, condition of tapes, carbines and braking system.
7.2 The paramotor’s maintenance and servicing – recommended operations.
After first 5 hours:
1. Check the tightening of all screws and nuts (visual control).
2. Check the tightening of the head (torque 13 Nm)
3. Check the internal carburetor filter (by unscrewing 4 screws on fuel pump’s cover-WG37)
4. Check the spark plug – condition of electrodes and spark plug hue. Torque 26Nm.
5. Check the engine regulation.
Carburetor WB-37 has the opening (diameter circa 8 mm) closed up with the net,
which is located under the back lid and rubber petal. This is the additional fuel filter. On the
filter, especially in the first period of exploitation there could be some technological
contamination of the fuel system as well as gel deposits caused by poor fuel quality. The
easiest way to get rid of contaminations noticed during the check-up is to rinse it by means
of regular syringe with the stream of pure washing benzene or brake cleaning spray.
Reducing the fuel flow through a sieve could cause intermittent engine running,
lack of power. In some cases, this could lead to leaning of the mixture,
temperature growth and the engine seizure!
After first 10 hours:
1. All steps performed after first 5 hours.
Every 25 Hours:
The same activities performed after 10 hours plus:
1. Check the Spark plug condition – the electrode gap and the isolator’s hue.
2. Clean the carburetor (internal mesh filter).
3. Clean or replace the main fuel filter.
4. Check the tension of the transmission belt.
Every 50 hours or once a year:
The same as every 25 hours plus:
1. Replace the spark plug.
2. Replace the starter rope.
3. The starter’s check-up (clearing and lubrication).
4. Control the engine’s regulation.
5. Replace the transmission belt.
Every 100 hours:
The same activities as every 50 hours plus:
1. Remove carbon deposits from the combustion chamber.
2. Replace the head gasket.
3. Replace the piston with piston pin rings and needle bearing.
4. Check the condition of the shaft bearings and connecting rod bearings.
5. Replace the manual fuel pump.
6. Replace the rubber joint of suction murmurs silencer.
7. Replace the silencer rubber shock absorber.
8. Replace the spark plug pipe.
Every 200 hours.
The same activities as every 100 hours plus:
1. Replace the membrane valve petals
Technical specifications of the paramator with the engine Octagon 190
27 KM / 7800 rpm
Aluminium with Nicasil layer
The resonance tube, pointing down
NGK (BR10SE) / DENSO (W31ESR-U) / DENSO (IW31)
125 cm / 130 cm ( 6x50mm )
Max thrust at 7900 rpm
~ 70-75 kg
11,5 L / 15,5 L
Aluminium and carbon
Upper / Lower
Techno-Fly / Dudek
30mm / 45mm
Engine’s weight (with Exhaust
pipe and suction murmurs
silencer and absorbers)
Combustion at 5000 rpm
3 – 3,5 l/h (after the run-in)
Recommended pilot weight
Weight of the paramotor ready
to flight without fuel
9. Warranty and service
We are putting every effort in order to make our paramotors durable and reliable. Still,
being mechanical devices, they can sometimes have material and assembly defects which
are independent of our will (the components from external suppliers).
In order to guarantee proper exploitation, Techno-Fly company provides you with telephone
consultations. Contact us in case of any doubts concerning proper exploitation of the
The invoice is the document confirming your warranty rights.
Techno-Fly grants 24-month warranty on new paramotors from the day of purchase as
indicated in the invoice. Warranty covers charge-free repair of damages caused by material
and assembly defects, provided that the user acted according to our exploitation
recommendations and inspection rules presented in the manual and presented in the course
of the training. The inspections described in the manual during the warranty period are
We guarantee the engine repair in max. 14 working days from the day of receiving the
equipment and frame repair in max. 30 days. If the user could replace the spare parts on
his/her own, we send them by courier or post in 3 working days.
The service has most spare and consumable parts, but the repair time might be exceeded
when it is necessary to import components from abroad or to run a detailed test and
weather conditions are not to good enough for that.
All manual starters used in Techno-Fly engines have to be checked up every 50 hours.
This could be done only by a specially trained person. Taking into consideration the reliability
and security we strongly discourage you from making any changes in the paramotor on your
The warranty does not cover repairs after seizing the engine due to thermal reasons
(mixture is too lean due to a number of reasons) or foreign matter getting inside.
The warranty also does not cover damage due to long-term engine exploitation on maximum
speed or without mounted propeller.
The paramotor must be delivered to the service personally or by courier in a package
preventing it from any transportation damage.
Please empty the paramotor’s fuel tank. Do not send the propeller, the propeller
cage or any other additional elements unless they are directly connected to the
repair carried out by the service.
You should add to the package a sheet of paper with a brief description of the problem and
contact details to enable us to contact you in case of any doubts or questions.
Attention! : All extra processing and repairs of the paramotor, without prior
agreement of the producer result in the immediate loss of warranty!!!
10. Service book.
0 - h
25 - h
50 - h
100 - h
200 - h