
NARAKU Cylinder Kit NK600.74 — 177 cm³ (Ø62 mm)
NARAKU big-bore cylinder kit NK600.74 designed to increase the displacement to 176.92 cm³ (bore 62 mm, stroke 58.6 mm). Ceramic-treated body with hard chrome coating for the bore surface, intended for 125 cc engines equipped with the YI-3 block (Yamaha YZF‑R, WR, X‑Max and derivatives).
This kit is intended for big-bore preparations and fits into the categories of Touring, Trail, Enduro, Roadster, Urban, Sport, Supermoto, and Trial. For correct installation and an appropriate combustion chamber, it is recommended to use the Naraku NK600.75 cylinder head specifically designed for a bore of Ø62 mm. The original cylinder head cannot be used.
Important: adjustment of the carburation or injection is necessary after installation (jet adjustment or reprogramming, for example Malossi Force Master). Check mechanical compatibility with your model and plan for tuning by a qualified preparer.