Fiate Aviation MZ201 Instructions d'utilisation
CONTENTS PAGE
Presenting the MZ201 engine............................................................................................................................................. 1
Warning................................................................................................................................................................................ 1
Introduction ......................................................................................................................................................................... 2
Engine delivery.................................................................................................................................................................... 2
Guarantee............................................................................................................................................................................. 2
Important safety tips............................................................................................................................................................ 3
Technical specifications...................................................................................................................................................... 4
Performance Diagram......................................................................................................................................................... 5
Main torque settings............................................................................................................................................................ 5
Oil and Fuel......................................................................................................................................................................... 6
Ground check to be carried out before starting up the engine for the first time ............................................................. 7
Starting up the engine for the first time and running in.................................................................................................... 8
Final check........................................................................................................................................................................... 9
Start up procedure............................................................................................................................................................... 9
Adjusting the carburetor................................................................................................................................................... 10
The reducer........................................................................................................................................................................ 11
Trouble-shooting............................................................................................................................................................... 13
Wiring diagram ................................................................................................................................................................ 16
Maintenance schedule ..................................................................................................................................................... 17
Exploded view of the MZ201........................................................................................................................................... 18
Preliminary flight inspection............................................................................................................................................ 19
Engine repairs logbook..................................................................................................................................................... 20
Modifications or different mountings
Compared to original model
Date
1
PRESENTING THE MZ201 ENGINE
Congratulations on having chosen the MZ201 engine. The special design of the various components
makes this a particularly light-weight, sturdy and reliable model.
If it is installed correctly and serviced regularly, your engine will last for a long time and meet your
requirements in full.
Avant-garde technology was employed to manufacture this engine which is unique in its kind. The
light alloy cylinder has been treated with Nikasil and is light-weight, reliable and has a virtually endless
life-span. The crankshaft is made of nickel-chrome-molybdenum steel and built to high standards of
resistance. Numerical control equipment and CAD-CAM technology have made it possible to build
ultra-light crankcase and radial elastic mounting without jeopardising the resistance level.
Furthermore, the crankcase incorporates the silent-block engine mountings and electric starter motor.
A 12 volt, 180 Watt alternator serves the ignition system and is used to re-charge the starter battery.
Electronic ignition and variable automatic timing guarantee reliability, safety and optimum engine
performance.
The above features ensure the MZ201 is a complete, light-weight and reliable propulsion system. Like
all high-performance engines, the MZ201 demands care and maintenance. It is vitally important to
use suitable fuel and a good blend of synthetic oil for two-stroke engines with a 50:1 ratio.
Proper servicing and appropriate use are essential requisites.
This manual aims to explain as clearly as possible how to install and get the best out of your engine.
WARNING
This is not an aeronautics approved engine.
This engine has not been subjected to durability and safety tests in compliance with aeronautical
standards. It is designed to be used in paramotors and ULM or aeroplanes where engine failure will
not produce serious consequences.
The user must assume responsibility for all risks deriving from the use of this engine and must
understand that this engine is subject to sudden failure.
Engine failure may result in an emergency landing. Such accidents may cause serious material damage
and injuries.
Never use an aircraft fitted with this engine in areas or at conditions and altitudes which may cause
problems if forced to land as a result of sudden engine failure.
2
INTRODUCTION
Like all high-performance engines, the MZ201 demands care and maintenance. It is vitally important
to use suitable fuel and a good blend of synthetic oil for two-stroke engines with a 50:1 ratio.
Proper servicing and appropriate use are essential requisites.
ENGINE DELIVERY
Upon delivery of the MZ201, check that the components were not damaged during transportation.
Free the engine from any pieces of packaging materials which maystill be trapped between the cylinder
head cooling fins or cylinder; check that the exhaust manifold and carburetor are not obstructed.
GUARANTEE
- Duration:
This guarantee is valid for a period of six months or 200 hours from the date the end user purchased
this engine from a distributor. The invoice is used as proof of purchase.
- Conditions:
The warranty will only be in effect when the purchase was made through FIATE or an authorized
dealer issued by FIATE.
The manufacturer reserves the right to modify dimensions and materials without prior warning. The
guarantee covers faulty components or manufacturing defects.
- This guarantee does not cover:
- The normal wear and tear of components.
- The piston seizure and drilling.
- The electric starter motor and electric components.
- Damage produced by transporting the engine, accidents, fire, improper use, negligence,
infiltration of external agents, premature wear or corrosion as a result of the engine being
immersed in water or other causes.
- Labour charges and the cost of lubricants needed for repairs are to be paid by the customer.
3
IMPORTANT SAFETY TIPS
Safety is everybody’s concern. We set out here below an incomplete list of the main safety precautions
to be taken when using the MZ201. It would be impossible to list all the circumstances which may
occur when you use this engine, but by being aware of the potential dangers, you will also reduce the
risks.
Nonetheless, here is some useful advice
- Never blend fuel in a closed environment where the vapours could cause an explosion.
- Ensure all the engines controls are fully functioning and that you are able to locate the START-STOP
switch. Make sure you can activate all the controls easily and that you can therefore use them
instinctively and without hesitation.
- Never re-fuel if there is a chance of the fuel dripping onto the hot engine. Use only approved
containers and ensure you comply with the relevant safety regulations when transporting fuel.
- Before each use, check the engine’s attachment points, propulsion components, fuel lines, wiring and
fuel and air filters.
- Use only clean fuel and blend immediately before using the engine. Check the intake and exhaust
ports. When not in use, protect the engine to prevent impurities from entering the fuel lines or fuel
itself. Ensure everything is correctly done before starting the engine.
- The engine must be always serviced regularly in order to foresee engine failure at all times.
- Never run the engine on the ground when the propeller is rotating unless the aircraft is located in an
area where you can check that nothing and no-one can access the danger zone.
- Never abandon your aircraft with the engine running.
- If the engine behaves unpredictably, keep a written record. In the event of any problems, do not
take to the air before solving the problem and making a record in the engine logbook.
4
TECHNICAL SPECIFICATIONS
Model
MZ201
Type
two-stroke, two-cylinder, reed valve engine
Cooling system
air cooling system, by means of forced air (fan)
or a propeller, depending on the type of
installation
Direction of rotation
Counter-clockwise seen from the PTO
Capacity
626cc (Nikasil cylinder)
Bore x stroke
76 mm x 69 mm
Compression ratio
9.6 / 1
Power output
45 hp at 4700 rpm
Peak torque
67 Nm at 4700 rpm
Lubrication
Fuel / oil blend 50 : 1
Fuel type
Super 95 RON
Ignition
Magneto flywheel with electronic transducer
with variable timing. Electric regulator and
battery charger output: 180W 13.8 Volt
Carburetor
Tillotson HR197A with diaphragm pump.
Spark plug
NGK-CR8HSA Spark gap: 0,7mm
Operating cylinder head temperature
CHT max. 260°C (500°F)
EGT max. 680°C (1250 °F)
Starting
By hand, by means of an automatic re-winder and
450 W electric starter motor
Weight
GMP
31 kg engine complete with, starter motor,
manual starter, speed reducer and silencer.
5
MZ201 PERFORMANCE DIAGRAM
MAIN TORQUE SETTINGS
Name
Nm
Cylinder head screws
Crankcase screws
Magneto flywheel nut
Cylinder nuts
Spark plug
Wooden Prop fastening screw
Other screws or nuts
Other screws or nuts
M6
M6
M10 x 1
M8
M10 x 1.5
M8
M8
M6
16
16
70
26
16
5 + 2
20 + 2
10 + 2
3100 3600 4200 4700 5200 5700 6200 0
Hp 25.34 29.43 37.89 44.38 40.31 38.56 36.70
Kgm 5.8 5.8 6.4 6.7 5.5 4.8 4.2
0
1
2
3
4
5
6
7
8
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
50.00
Kgm
Hp
RPM
Type:MZ201
Hp Kgm
6
OIL AND FUEL
Whichever blend of oil and fuel you use, there follows some advice that will help you keep the engine
in perfect running order.
The presence of impurities in the fuel is the main cause of engine failure. To prevent the fuel from
being contaminated, it is necessary to take action at source, because the potential risk increases if
impurities enter the fuel tank. Always use a clean fuel container that complies with safety
standards. Always filter the fuel when you fill or change the container. Do not fill the container
to the brim; never forget that fuel may increase in volume.
Do not use blends which have been stored for a long time or which have been exposed to sunlight
in a translucent container. Blend the fuel and oil thoroughly before filling the fuel tank because
there is a risk of the two liquids separating in time.
Choose the same type and brand of oil and stick to it unless it causes problems. By doing so, you
will get to know the product well and you will be able to assess whether it suits your engine. If
you change the type of oil frequently and your engine has problems, you will never know which
type of oil is responsible.
It is extremely important to avoid switching from synthetic oil to traditional oil. The two types
are not always compatible and, if blended, it is possible that a film may form and obstruct the
engine’s components or cause other problems. As a rule of thumb, 20% of cases where the user
has switched from a synthetic oil to a traditional oil has resulted in problems with the engine.
If the engine has been installed the opposite way up (with the spark plug pointing downwards),
choose an oil that leaves few carbon deposits. Oil deposits tend to build up in the lowest parts, for
example, in the spark plug cavity. If these deposits do not burn during normal use, the sparkplug
is fouled and this may result in self-ignition. Manufacturers of top brand lubricants guarantee the
quality of their products.
Oil specifications: synthetic oil for two-stroke engines: 50: 1 ratio
Fuel specifications: the octane rating should be minimum: R.O.N.95 or more.
7
How to prepare the blend
Agood method for preparing the blend could prevent a good deal of problems. By adopting the same
method every time, the preparation will become an automatic process that will simplify matters no end.
1. Always use a suitable container: ensure it is clean, free of condensation and that you know the
exact capacity. To dilute the oil more easily, pour a small amount of fuel into the container.
2. Pour in the required amount of oil. Shake slowly to blend the oil and fuel.
3. Add sufficient fuel to obtain the prescribed blend. If you use a filter at this stage, it should
have a very fine mesh in order to filter any water or foreign particles.
4. Screw the lid back onto the container and shake vigorously. Pour the blend into the fuel tank
of your aircraft. Use a funnel with a filter that is fine enough to prevent any impurities from entering
the fuel tank whilst allowing the oil to pass through.
GROUND CHECKS TO BE CARRIED OUT BEFORE STARTING UPTHE ENGINE FOR
THE FIRST TIME
Before starting up the engine for the first time, carry out a general inspection, checking in particular:
Ensure the carburetor and fuel feed circuit are securely installed.
Check the suction pressure piping between the crankcase inlet and the fuel pump on the carburetor,
also check the decompression valve and carburetor inlet.
Check the condition of the electric cables and that the spark plug’s high tension lead has been fitted
correctly.
Check that the two black cables going from the engine shut-off control to the switch have been
connected correctly
Ensure the silent-block engine mountings are properly installed and that the locking bolts have been
tightened sufficiently.
Check the reducer, the belt tension and the fastening screw on the eccentric.
Never run the engine without the propeller; this is particularly important for the model without forced
air cooling.
Ensure the propeller and locking bolts are in good condition. Check that the propeller is suitable for
the engine as well as the latter’s direction of rotation.
(Only good quality balanced propellors must be used)
8
STARTING UPTHE ENGINE FOR THE FIRST TIMEAND RUNNING IN
The first time you start it up, run the engine at 2000 - 2500 rpm for the first 15 - 20 seconds, then run
it at the lowest revs (1500 rpm) for a few seconds, before stepping up the revs to 3000 - 3500 rpm.
At this point, we recommend running in the engine before using it, pushing the engine to its full
potential. Part of the running in process can be carried out in flight. If you choose to do so on the
ground, ensure the engine is bolted securely in position.
Start the engine and run it at 2500 to 3000 rpm for 5 minutes, then step up the revs to 4000 rpm for
one minute before dropping to 3000 rpm.
Repeat the process, increasing the revs to 4000.
Settle at 4500 rpm for 5 minutes, then drive the engine to the maximum revs for 10 seconds before
returning to 3000 rpm.
Repeat the above process, running the engine at maximum revs for 20 seconds.
Repeat the above process, running the engine at maximum revs for 30 seconds.
Settle at 3000 rpm for 5 minutes, then at 4000 rpm for 5 minutes, then run at the maximum revs for
one minute and return to 3000 rpm.
Run for 2 minutes at max. revs, then drop to 3000 rpm.
Run for 5 minutes at 4000 rpm, then 3 minutes at max. revs, return to 3000 rpm for 2 minutes, then
cut off the power supply and stop the engine.
During the above operations, check that the temperature of the cylinder head never exceeds 260°C
(500F)
During the running-in, it is particularly dangerous to increase the quantity of oil if you are using Castrol
TTS. An excessive amount of oil will cancel the benefits of running-in the engine.
During the first few hours of use, never apply full power for prolonged periods, but just for a few
minutes during take-off. By running-in the engine thoroughly, you will prolong its life-span. The
engine will loosen up and function at full power after approximately five hours.
Any irregularities in the engine speed may be caused by a badly adjusted carburetor.
After the first hour of use, check that all bolts are tightly fastened in accordance with the torque settings
given in the table on page 5.
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