Naraku V.2 90cc cylinder kit for GY6, Kymco 50 2V
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cylinder kit Naraku V.2 90cc incl. cylinder head for SunL SL50QT-2 50 4T
cylinder kit Naraku V.2 90cc incl. cylinder head for GY6, Kymco 50 2V
cylinder kit Naraku V.2 90cc incl. cylinder head for GY6, Kymco 50 2V
cylinder kit Naraku V.2 90cc incl. cylinder head for GY6, Kymco 50 2V
cylinder kit Naraku V.2 90cc incl. cylinder head for SunL SL50QT-2 50 4T
SKU:
NK100.52
Naraku
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PRICE: £206.97
incl. 20.00% VAT free shipping
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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.

Please note: 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
SKU:
NK100.52
DELIVERY:
Out Of Stock
BRAND:
Naraku
WEIGHT:
1,96 kg
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spare parts
spark plug NGK CR7HSA
 
 x 
  IN STOCK   delivery 1-2 working days (UK warehouse)
 
CR7HSA
£3.68*
 
 
cylinder head valves Naraku V.2
 
 x 
  AVAILABLE   delivery 4-11 working days (EU warehouse). Estimated delivery shown in basket
 
NK100.55
£46.09*
 
 
piston set Naraku 52.4mm CNC milled piston skirt grooves for 139QMB/QMA
 
 x 
  AVAILABLE   delivery 4-11 working days (EU warehouse). Estimated delivery shown in basket
 
NK100.64
£35.41*
 
 
top end gasket set NARAKU [51/52mm]
 
 x 
  IN STOCK   delivery 1-2 working days (UK warehouse)
 
NK100.58
£11.04*
 
 
piston pin circlips Naraku 13mm
 
 x 
  IN STOCK   delivery 1-2 working days (UK warehouse)
 
NK100.18
£0.92*
 
 
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For the scooters and bikes of: Adly Aprilia Benelli Baotian BTM CPI Honda Hyosung Keeway Kymco Malaguti PGO Vespa Peugeot Piaggio SYM TGB Yamaha and many more, we are offering spare parts & accessories of brands like: Airsal Arreche Artek GiVi Heidenau Kenda Koso Kymco Leovince Malossi Naraku Polini Turbokit Top Racing Tecnigas and Yasuni. From exhaust, cylinder kit, drive belt, clutch, crankshaft, CDI, carburettor, air filter, battery to body parts - we have it.

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01384 265356
01384 265356