TBPARTS - 165CC BORE KIT, RACE HEAD V2, INTAKE MANIFOLD KIT - Z125

This kit is the next step up from the 143cc kit, but requires case bore for it to fit. A great upgrade for your Z125, this kit uses a large, 64mm piston paired with a V2 race head to give a huge bump in power.   Key features:   Lightweight high compression 64mm piston Aluminum cylinder for better heat dissipation and further weight reduction from stock. V2 roller rocker race head provides much larger valves and aggressive cam with roller rocker arms.   Application:   Kawasaki Z125 NOTE: Case boring requiredMUST BE USED WITH AN AFTERMARKET FUEL CONTROLLER TO PREVENT A LEAN CONDITION AND DAMAGE TO YOUR ENGINEWE RECOMMEND PREMIUM FUEL