NCY Cylinder Kit (158cc, 58.5mm); Yamaha Zuma 125 s150 NCY GY6 50/139QMB 50mm bore

NCY GY6 50/139QMB 50mm bore Cast Iron Cylinder Kit w/o head

Install a new NCY Intake Gasket (SKU 1100-4020) to ensure a perfect seal and prevent lean-run conditions

It is the cylinder head body by itself

Notice: This product is intended for off-road and racing use only

Hardware Included

NCY Cylinder Kit (158cc, 58.5mm); Yamaha Zuma 125 s150 NCY GY6 50/139QMB 50mm boreNCY 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!