M8 Rotax Cylinder Embase Nut (18)

Discover our complete pocket for engine Rotax EVO, specially designed for karting enthusiasts looking for performance and reliability. This pocket is compatible with a wide range of engines Rotax, including Micro Max, Mini Max, Junior and Max (Senior) models. Whether you are an amateur or professional driver, this clutch offers everything you need to perform a complete review of your engine.

The BTR M6x25mm screw (or chc - hollow hex cylindrical screw) is one of the most used hardware on the engines Rotax. Its length of 25 mm and its thread M6 Make it a versatile screw, mainly used for the assembly of the housings, to the attachment of certain periphery accessories or the maintenance of internal components depending on the version of your engine.

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.

Rotax exhaust valve stud - 6 x 30.5 x 12 mm Guarantee the fluid movement of your valve with this original stud Rotax. With its precise dimensions of 6x30,5x12 mm, it ensures a perfect guidance of the guillotine, avoiding any blocking and optimizing the performance of your engine to all the regimes.

The valve box cover, commonly called intake blowjob, is a centerpiece of your engine intake system Rotax. This model, with a connecting diameter of 42.5 mm, is designed to perfectly accommodate the dell'orto VHSB 34 carburetor.

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.

The Guillotine body (n ° 7) is the fixed part that screws on the cylinder and in which the movable guillotine slides. It is it that ensures the maintenance of the entire valve system (bellows, spring, cap). If this part is dirty or distorted, the valve can no longer rise and descend freely, which brides the engine performance.

The Circular membrane spring (70 x 1.7 x 0.3 mm) is the metal voltage ring that ensures the maintenance and tightness of the orange bellows base on the valve body. Its precise dimensions ensure a uniform pressure on the entire circumference of the membrane, condition sine qua non to the proper functioning of the pneumatic system.

Cylinder head cover Rotax Max not painted

The Support spring is housed between the valve piston and the black adjustment cap. Its role is to exercise a constant reminder force on the guillotine to keep it in the low position. It is the resistance of this spring that defines when (which engine speed) the pressure of the gases will be able to lift the valve to release the power.