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*The prices do not include any applicable duties, taxes, or tariffs.*
Polini Motori presents the new Thor 303, a concentration of power and technology. An innovative engine with important novelties that result into reliability, power. Reduced weights, reduced aerodynamic section and moderated depth.
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Polini Engine |
2 stroke monocylinder |
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Cooling |
Liquid cooled |
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Bore for stroke |
76 x 62 |
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Displacement |
281 cm3 |
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Power |
38 HP at 8000 rpm |
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*Max trust |
120 Kg with Ø 160 cm propeller |
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R.P.M. max |
8.400 |
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Cylinder |
Aluminum with Gilnisil coating |
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Compression ratio |
11,2:1 |
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Piston |
Two trapezoidal chromium plated rings |
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Intake |
Reed valve in the crankcase |
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Carburetor |
Dell’Orto VHST 28mm |
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Air filter |
Air box |
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Ignition |
Electronic CDI with adj. advance |
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Battery charger prearrangement |
Output power 40 W at 5500 RPM |
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Spark plug hood |
5k Ω resistance |
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**Fuel type |
E5 petrol or LL AV GAS-al with 2,5% synthetic oil 100% |
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*Consumption |
3 Lh 30 Kg a of static trust |
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Gear reduction unit |
Helicoidal teeth in oil bath with 2,8 or 3,2 reduction ratio |
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Starter |
Flash Starter – (Electric starter -optional) |
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Clutch |
Centrifugal in oil bath |
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Muffler |
Expansion with aluminum silencer |
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Engine weight |
Starting from Kg 22,3 (manual starter model +radiator) |
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Propeller rotation |
Clockwise |
*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.