Type: in-line engine
Cylinders: 2
Displacement: 625 cm³
Max. performance: 51,5 kW (70 HP)
Max. torque: 77,3 Nm
Cooling: water cooling
Weight: 36 kg (with muffler, add-on parts and water in the engine)
Starting device: recoil starter included
Options: electric starter, dual ignition, multi point injection instead of dual carburetter, separate lubrication, gear box G50 with or without centrifugal clutch
The 3503 is a water cooled, reed valve controlled 2-cylinder-inline-2-stroke engine with electronic fuel injection or carburettor and Nikasil coated cylinders. It has one of the highest power to weight ratio available on the 70 HP engine market. Ideally suited for Ultralights, hovercrafts, gyrocopters, light experimental aircrafts and all applications wher weight is an issue. Factory recommended TBO is rated at 1000 hours at 75 % power. The warranty of the crank shaft is 3 years.