Valve hood Exhaust Rotax Max (15)

The Exhaust ball (or pipe) is a foundry room attached directly to the cylinder output. Its role is twofold: it guides the burned gases to the exhaust pot while allowing a slight articulation thanks to the springs. Versions EvoIt is machined with extreme precision to ensure that the gas flow does not meet any restrictions, ensuring a linear rise.

The M8 Stop Washer (N ° 21) is a security technical washer placed between the nut and the cylinder base. Its role is to prevent any inconvenient loosening of the high engine mount nuts. On the DD2 motor, where the vibrations and transmission stresses are important, it is essential to ensure the integrity of the motor block.

 Rotax Circular spring of membrane 134x3,0x0.65mm

The Cylinder head Rotax MAX / DD2 is the red upper piece that seals the high engine. She is 100% compatible with the entire 125cc range from Rotax, including direct socket motors (MAX) and two-speed engines (Dd2). It ensures the circulation of the coolant around the combustion dome for perfect thermal stability.

Cylinder base seal original Rotax, specially designed for engines Rotax Max (EVO, DD2, DD2 EVO, Micro, Mini, Junior, Senior). Essential piece to seal between the cylinder and the engine crankcase, ensuring optimal performance and long service life to your engine.

The Red cylinder head (ref. Rotax 211225) is the upper structural element that closes the high engine cooling circuit. Real visual signature of engines RotaxThis injected aluminum alloy part is designed to withstand the most intense thermal and vibratory stresses, ensuring the overall waterproofing of the water chamber.

The cylinder head cap Rotax 10 mm (engraved 1.8 torque) is a spare part of origin manufacturer (Original Rotax Racing). It is designed to tightly seal one of the threaded cylinder head orifices (cylinder cover) on all the engines of the range Rotax 125 Max (Micro, Mini, Junior, Max Senior, Max Master and DD2).

Machined according to strict micrometric tolerances, this brass plug or high strength alloy has a thread of 10 mm. Its flat head includes plant engraving "1.8 Torque", indicating the pilots and mechanics the regulatory torque recommended by the plant (1.8 N · m) not to damage the aluminum thread of the cylinder head. This plug ensures absolute sealing of the liquid cooling circuit, avoiding any pressure drop or heat transfer leak at high speed.

The Adjustment screw, located at the top of the valve hood, is the direct interface between the driver and the engine. By screwing it or by unscrewing it, the preload of the internal spring is modified, which defines which precise regime will open to release all the power of the Rotax.