cylinder kit -NARAKU- 155cc forged piston for Yamaha Cygnus, BWs 5ML 4V

Big Bore Kit 155ccm for Yamaha Cygnus 5ML engines. The bore is 59mm.

This cylinder kit can be driven with original cylinder head.

The highlight of this Naraku cylinder kit is the forged piston: For more load capacity and reduced friction values. The raised piston crown also provides more compression.

Included as shown.

If you need spare parts, please select from the list.

After the conversion please check the mixture and tune the carburetor, on vehicles with fuel injection it must be readjusted._{AI-translation}