Cylinder MK II for Raket 95
This cylinder is manufactured in Sweden and will be launched year 2024 for Raket 95.
Raket 95 MK II cylinders are made with the latest production technology creating cylinders with even better parity and durability than the previous version.
The MK II is directly comparable to the previous Raket 95 cylinders - the performance is unchanged and all accessories such as pistons and gaskets will fit both versions.
Please note that minor modifications of the crank case is required to fit the new MK II cylinder, instructions are included with the cylinder.
Manufacturing:
Die casting
The previous version of the cylinder was die-cast; a technique where you pour molten aluminum into a mold and let the melt spread out via gravity.
The new MK II cylinder is die-cast – Die-casting is the most modern technology where the molten metal is pushed into the mold with an extremely high pressure (up to 1000bar)
This means you get exactly the right amount of metal in exactly the right place, every time.
It enables thinner and finer details with great precision - the tolerances straight out of the mold are less than 1/10 of a millimetre.
Dual Charge
The cylinder is fuelled via the intake with a unique dual-charge technology.
The Raket 95 engine uses separate intake ducts, the upper duct contains only clean air and is used to flush the exhaust gases out of the cylinder before it receives the new fuel mixture.
All other two-stroke engines without dual-charge use fuel-mixed air for this flushing and therefore unnecessarily flush out a large part of the fuel directly into the exhaust gases.
Thanks to its DC technology, the MK II cylinder produces significantly less harmful exhaust gases compared to other engines, it also has a significantly lower fuel consumption and is one of the most environmentally friendly two-stroke engines on the market.
Nikasil
The cylinder bore in the MK II is Nikasil treated
Nikasil was developed in the 60s for Porsche racing cars and makes it possible to manufacture cylinders entirely in aluminium without steel liners.
With electrolysis the cylinder bore is plated with silicon carbide which is much harder than steel.
Thanks to this, the cylinder becomes extremely durable - under normal circumstances a service life of hundreds of running hours.
Specifications:
For engine: Raket 95
Suitable spark plugs: NGK BPM 8Y
Sensor socket: M5 thread for temperature sensor
