THOR 250 DUAL SPARK ENGINE: performance andsafety in flight

All the best riders and the many passionately fond of paramotorflight say: "We have a liking for the Polini Thor engines. We know thehistory of this Italian company and the performing features of its products forscooter and motorbike. We appreciate THOR engines for their extraordinaryqualities but now we're really amazed by a novelty as the new "THOR 250DUAL SPARK" engine.

Well,just to say that Polini Motori is always looking for new gratifications in itsjob. Research by the R&D department is continuous and it aims to refine andimprove more and more the products with one goal: "make the best evenbetter".
From the experience of the THOR 250, Polini presents now the avant-garde THOR250 DUAL SPARK. Polini THOR 250 DUAL SPARK engine is provided with two sparkplugs and two independent ignitions to ensure maximum security features in eachflight condition.
Liquid cooling system grants an extraordinary constancy of performance and morepower at every RPM.
Polini THOR 250 DUAL SPARK engine has many more advanced solutions, including:

- Thecylinder is die-cast in light alloy, it ensures a better thermal stability.
- The piston, gravity cast at high silicon content light alloy, reduces thermalexpansion and the coupling slack. The design of the piston top is specific tooptimize the compression ratio.
- It is provided with a balancing countershaft; this feature cancels thevibrations and guarantees such a driving comfort never felt during a flight anda longer life for the engine itself. The counter-rotating rollers decreasegreatly the upsetting torque-steer for an extra comfort in flight.
- The centrifugal clutch is in oil bath with helicoid mechanical reduction.
- The electric starting is standard but to offer the maximum safety the engineis also equipped with manual starter with easy system thanks to the flashstarter device that speeds up and simplifies the movements.
- It is equipped with the comfortable closed-circuit system for the recovery offuel during transportation and the 12 V output for any use.
Small and compact THOR 250 DUAL SPARK engine has an extraordinary power toweight ratio.
Advanced technology and high performance of the new THOR 250 DUAL SPARK allow abetter feeling of driving performance, making the flight more dynamic,responsive and sensitive, besides ensuring even greater stability.

The new THOR 250 DUAL SPARK engine adapts to different types of applicationsincluding as two-seat trikes, powered hang gliders, one-seat small three-axis,ULM motor-gliders
Polini THOR 250 DUAL SPARK is a 100% Made in Italy product.

• Part no. 928.000.019

TECHNICAL LIST

THOR 250 DUAL SPARK