NCY Cylinder Kit (158cc, 58.5mm); Yamaha Zuma 125 shield Upgrade your valve train with

Upgrade your valve train with the NCY Performance Valve Spring Set

This scooter engine is designed specifically for use with 10" diameter rear rims

Manufacturer: NCY (ISO 9001 Certified)

Billet aluminum frame extension assembly

NCY Cylinder Kit (158cc, 58.5mm); Yamaha Zuma 125 shield Upgrade your valve train withNCY Cylinder Kit (158cc, 58. 5mm) for Yamaha Zuma 125. Does not include cylinder head. NOTE: Because the Zuma 125 is fuel injected, you'll need a Fuel Injection Module if you want this cylinder kit to work. We recommend the Two Brothers Juice Box. You'll definitely want to check out our Crank Case Breather specifically for your Zuma 125. If you're adding a big bore cylinder kit to your bike, or you ride at high RPM, this is a must have!