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The new Polini Thor 200 HF has been developed by the Polini R&D team using the new 3D modeling software systems and flow dynamic simulation. The result of this research and the introduction of the innovative HF System grant better cooling improving the performance of the Thor 200 HF. It has been used during the last 2018 French Championship and it has already won its first title with the pluri-world champion Alex Mateos, confirming the reliability of the new THOR 200 HF.

Technical features:

The new design of the “COVER” cooling shrouds optimizes and accelerates the incoming flows and increases the exit power towards the propeller.
Together with the air forced system it grants great performance in terms of cylinder cooling.

SCS is the innovative cooling system of the spark plug that lows the working temperatures in the point of highest warm and in the burning chamber, eliminating the events of over-heating. Polini SCS system reduces the EGT temperatures till 100 C° and till 50 C° the ones under the spark plug.

The new profile of the burning chamber improves the propagation of the flame optimizing the fuel combustion phase. This peculiarity, together with the increasing of the compression ratio, improves the engine performance reducing the fuel consumption.

The new carburetor set up has been improved thanks to a series of workings inside the carburetor finalized to increase the power output and the vaporization of the petrol/air mixture. Two fuel systems are available: bowl Ø28 carburetor or Walbro WB37 carburetor.

The centrifugal clutch has been studied to grant the best safety features during all the stages: starting, take off, flight and landing.

It is equipped with a balancing countershaft which cancels any vibration granting more comfort.

Polini Thor 200 HF engine is provided with the new Polini “Flash Starter”, easy and fast to start. A version with electric starter is also available.

Light alloy casting cylinder with liner with nickel-chrome plating for the best piston sliding. The piston is made of gravity die-cast light alloy at high silicon content with 2 special chromed and nitride steel rings. The design of the piston top optimizes the compression ratio.

The design of the crankshaft has the aim to increase the primary compression ratio and grants a better mixture flow.

The exhaust system is completely hand made for a better product quality. It is divided into two sections with manifold with spherical connection and fixed on natural rubber suspensions that grant longer life. The exclusive new springs with steel hooks make them stronger and offer the possibility to be better fastened. The exhaust system has a compact design and contained dimensions to reduce the weight. The small overall dimensions improve the aerodynamic and grant a low noise level

The frame-engine connecting points of the Polini Thor 200 HF are the same as the other engines: 80, 130, 190 HF and 250. This characteristic makes the engine interchangeable on all the dedicated frames.

Polini Thor 200 HF engine features many other technical solutions and safety characteristics.
System with closed circuit for the fuel collection during its transportation (only for models equipped with bowl carburetor). Prearrangement for 12V exit for future electric devices.
Very low propeller overturning torque granted by the counterturning masses.

It has been developed and produced following all the criteria for the handcraft products with the most modern and advanced production methods and under the supervision of highly specialized technicians who have achieved great experience, skill and creativity during the years.

Polini Engine 2 stroke monocylinder
Cooling Forced air
Bore for stroke 64 x 60
Displacement 193 cm3
Power 30 HP
*Max trust 85 Kg with Ø 130 cm propeller
R.P.M. max 8.100
Cylinder Aluminum with Gilnisil coating
Compression ratio 12:1
Piston Two chromium plated rings mm 1
Intake Reed vale in the crankcase
Carburetor Walbro WB37 / Polini Float Ø28
Air filter Air box
Ignition Electronic with battery charger possible
Battery charger prearrangement Output power 80 W at 5500 RPM
Spark plug hood 5k Ω resistance
**Fuel type E5 petrol or LL AV GAS-al with 2,5% synthetic oil 100%
*Consumption 2,9 Lh 30 Kg of static trust
Gear reduction unit Helical teeth in oil bath with 2,8 reduction ratio
Starting Flash Starter – (Electric starter optional)
Clutch Centrifugal in oil bath
Muffler Expansion with oval silencer
Engine weight 17,5 Kg (18,5 with electric starter)
Propeller rotation Clockwise

100% Made in Italy

  • 928.000.080 –Ø28 carburetor – Manual FLASH STARTER –
  • 928.000.081 – Ø28 carburetor – ELECTRIC starter + manual FLASH STARTER –
  • 928.000.082 –Walbro WB37 carburetor – Manual FLASH STARTER –
  • 928.000.083 –Walbro WB37 – carburetor – ELECTRIC starter + manual FLASH STARTER –

*The values have been detected on the sea level at standard atmosphere. The trust and consumption values may vary according to the air temperature and  density.

**E5 means the petrol type  that can be used. E5= unleaded petrol 95 octanes up to 5% of ethanol. This symbol is shown on all the petrol pumps in Europe.


Paramotor World Championship
1st Place – PF1 class- Alexander Mateos
1st Place – PF1 women class – Marie Mateos
Paramotor French Championship
1st Place – PF1 class- Alexander Mateos

Paramotor World Championship
1st Place – PF1 women class- Marie Mateos
1st Place – PF1 class – Alexander Mateos

Paramotor World Championship
1st Place – PF1 class- Alexander Mateos
1st Place – PF1 women class – Marie Mateos

Paramotor World Championship
1st Place – PF1 class – Alexadre Mateos
1st Place – PF1 women class – Coralie Mateos
1st Place – PL1 single-seater trike class – Frederic Mallard

Additional information

Engine Options 200

THOR 200 HF Ø28 carburetor – Manual FLASH STARTER, THOR 200HF – Ø28 carburetor – ELECTRIC starter + manual FLASH STARTER, THOR 200 HF Walbro WB37 carburetor – Manual FLASH STARTER, THOR 200 HF -Walbro WB37 – carburetor – ELECTRIC starter + manual FLASH STARTER