THOR 200 EVO
Polini THOR 200 EVO engine grants many improvements thanks to the new following features:
• New transfers and exhaust diagrams
• New head drawing with embedding in the cylinder
• New crankshaft with filling inserts
• New cooling shroud
• Modification for the Walbro carburetor
THOR 200 EVO is an advanced engine that can use two different fuel systems: d.28 PWK model carburetor or WB37 WALBRO 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 and longer last of the engine when flying.
THOR 200 EVO engine is provided with the new Polini manual “Flash Starter”, really easy to start. A version with electric starter is also available.
Polini engine- 2 stroke monocylinder
Cooling- Forced air
Bore for stroke- 64 x 60
Displacement- 193 cm3
Power- 30 HP
Cylinder- Aluminum with Gilnisil coating
Compression ratio- 12:1
Piston- Two chromium plated rings mm 1
Intake- Reed valve in the crankcase
Carburetor- Walbro / 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- Lead free petrol with 2% synthetic oil
Gear reduction unit- Helical teeth in oil bath with 2,8 reduction ratio
Starter- Pull start with self winding cable 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