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ECLATE CYLINDRE
Welcome to the Rotax 125 DD2 cylinder category. Magickart offers kart engine parts (Rotax DD2 engine): cylinders, cylinder heads, pistons, rings, crankshafts and rebuild kits, to bring back power and reliability.
Not sure about the choice or compatibility? The Magickart team, karting specialists, will advise you before you buy. Discover also: rotax DD2 cylinders.
When should the top end be rebuilt?
When compression drops, oil consumption rises or the engine loses performance. Also follow the intervals recommended by the manufacturer.
How do I find the right reference?
Note the engine model and compare the references with the exploded view. If in doubt, contact us with your engine model.
Rotax Circular spring of membrane 134x3,0x0.65mm
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.
The Exhaust valve cover Is the upper black housing that seals the entire valve system. It serves both protection for internal elements (piston, membrane, spring) and support point for the adjustment knob. It is an essential part to maintain the tightness and allow the proper functioning of the pneumatic mechanism.
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.