22/25, 66 mm Cylinder Head for Yamaha X-Max, YZF, WR 125

Big bore and still not enough? Introducing the Naraku Racing 4-valve head with a 66 mm combustion chamber
Increased intake, reinforced valve springs and larger valves (23 / 25 mm). Compatible with Yamaha X-MAX, WR, YZF-R 125 and other 125cc mopeds with YI-3 engine
The injectors or injection system need to be adjusted (e.g. with Malossi force master). Cylinder head compatible with the 66 mm bore Naraku NK600.76 big bore cylinder
Combustion chamber: 66 mm. Intake valves: 25 mm. Exhaust: 23 mm



Specifications


Brand
NARAKU


Supplier reference
NK600.77


Product name
Cylinder head kit


Units
Kit