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Cylinder Head 21 23, 62mm for Yamaha X-Max, YZF, WR 125
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  • Cylinder Head 21 23, 62mm for Yamaha X-Max, YZF, WR 125
  • Cylinder Head 21 23, 62mm for Yamaha X-Max, YZF, WR 125

Cylinder Head 21/23, 62mm for Yamaha X-Max, YZF, WR 125

€496.73
€447.06 Save 10%
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Naraku Racing 4‑valve cylinder head (62 mm combustion chamber) offering increased flow, reinforced valve springs and enlarged valves (intake 23 mm / exhaust 21 mm). Compatible with YI‑3 engines (Yamaha X‑Max, WR, YZF‑R125). Carburetor/injection recalibration required (e.g., Malossi Force Master). Fits big-bore cylinders 62–64 mm; supplied without pushrod shafts. Newer models include a port/connector for an oxygen (lambda) sensor.
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  • Naraku Racing 4-valve cylinder head, designed with a 62 mm combustion chamber to improve engine performance.
  • Optimized design for increased flow: reinforced valve springs and larger-diameter valves for improved gas flow (intake/exhaust).
  • Valve diameters: intake 23 mm and exhaust 21 mm for better flow and responsiveness.
  • Compatibility: fits Yamaha X‑Max, WR, YZF‑R 125 and other 125 models equipped with the YI‑3 engine.
  • Installation note: the carburetor or fuel injection system must be reconfigured after installation (for example with a Malossi Force Master) for proper tuning.
  • Compatible with big bore cylinders: can be mounted with Naraku NK600.74, Polini 166.0101, Malossi M.3114852 and other cylinders with a bore between 62 and 64 mm.
  • Combustion chamber specification: 62 mm diameter, suited for builds aimed at improved combustion.
  • Recent models include a provision for an O2 (lambda) sensor directly on the outlet; on earlier versions this opening must be plugged if not used.
  • Supplied without the shafts for roller tappets (delivered without roller tappet shafts).
NARAKU
09311085
4 Items

Data sheet

Marque
NARAKU
Référence fournisseur
NK600.75
Couleur/finition
Argent
Nom du produit
Kit culasse
Unités
Kit
Type de moteur
4 temps
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