Cylinder Kit 125Cc Nk600.37Cylinder Kit 125cc for Yamaha Cygnus, BWs 5ML 4VComplete cylinder kit with all gaskets and small parts for fitting This 125cc Naraku cylinder yields engine performance corresponding to the original Thus ideal as a top quality inexpensive replacement for a defective original cylinder The piston features the Naraku wear reducing coating, as found in most other Naraku kits The running in period is significantly improved