Polini THOR 250 DUAL SPARK engine features 2 spark plugs and 2 independent ignitions to grant the maximum safety standard in every condition of flight. The liquid cooling system grants an extraordinary steady power output and better performance at every rpm.
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Many are the advanced technical solutions adopted.
Thor 250 DUAL SPARK engine is small and very compact with a great power/weigh ratio. The advanced technology and the great performance of this engine gives a better feeling when driving making the flight even more performing, dynamic, reactive, beside granting more stability.
|Polini Engine||2 stroke monocylinder|
|Bore for stroke||72 x 60|
|Cylinder||Aluminum with Gilnisil coating|
|Piston||Two chromium plated rings mm 1|
|Intake||Reed valve in the crankcase|
|Air filter||Air box|
|Ignition 2||Electronic battery powered|
|Battery charger||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|
|Starting||Electric starter + pull start with self winding rope Flash Starter|
|Clutch||Centrifugal in oil bath|
|Muffler||Expansion with oval silencer|
|Engine weight||18,5 Kg (19,5 kg with electric starter) without radiator|
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