
Manufacturer reference: NK600.76 — Brand: NARAKU
NARAKU big-bore cylinder kit designed to transform the bore diameter to Ø66 mm and increase the displacement to 200.38 cm³. Body treated with ceramic coating and hard chrome layer, bore 66 mm and stroke 58.6 mm. Intended for 125cc engines equipped with the YI-3 block (Yamaha X-MAX, WR, YZF-R125 and derivatives).
Installation notes and compatibility: for optimal fitting, the NARAKU cylinder head NK600.77 (designed for Ø66 mm) is highly recommended — the original cylinder head is not compatible. Carburation or injection must be recalibrated after installation (suitable jets or injection management, for example via Malossi Force Master). Installation advised by an experienced mechanic or preparer.
Compatible universes: Road/Touring, Trail/Adventure, Enduro, Roadster, Urban, Sport/Racing, Supermoto, Trial. Suitable for preparers and riders looking for a reliable big-bore solution for 125 YI-3 bases.