Cylinder Kit V.2 90cc incl. cylinder head for GY6, Kymco 50 2V NARAKU NK100.52

Fabricante:

NARAKU

Vehículos compatibles con Cylinder Kit V.2 90cc incl. cylinder head for GY6, Kymco 50 2V NARAKU NK100.52:

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264,35 €

232,62 €

(Impuesto incl.)

With the latest V.2 Cylinder kit series from NARAKU, we can offer a more advanced product
The bore has been taken out to 52.4mm
The external diameter of the cylinder base has not been affected by the increase in displacement
This means alterations to the crank cases are generally not required
As a 4 stroke cylinder is effectively just a hole, the emphasis on technological development was placed on the piston and compression
The piston has 2 additional CNC-machined oil grooves in the piston skirt, which collects engine oil to lubricate the cylinder bore and improve characteristics in extreme circumstances
The molybdenum coating aids the crucial running-in period
2 oil recesses and a groove at each bearing point ensure the gudgeon pin is adequately lubricated
The compression ratio and power delivery set this cylinder apart
The kit contains a cylinder head with larger valves and optimised inlet and outlet ports
For technical reasons, a bore size of 50mm or larger requires a larger head for on-going use
This kit is currently one of the biggest conversions on the market
The kit can use the original carburettor, but we recommend changing the main jet
For Sym scooters this kit is only suitable for the GY6 139QMB engine version and not the XS1P139QMB, AV05W or AW05W engine or the Sym Symply 2 models

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