For those of you that already have Kitaco's 143cc SE bore kit, this kit allows you to upgrade your kit to the Complete 143cc 4-Valve Big Bore Kit. Kitaco engineers designed a brand new SOHC 4-Valve head that produces exceptional horsepower and is available in two displacement packages. This potent 143cc version and a very aggressive 160cc version. Key features of this new head include: centered spark plug location for superior combustion effeciency, Pent Roof combustion chamber design and the use of Y-Style slipper type rocker arms. This rocker arm design is lighter weight then typical screw type and runs with less friction. A forged, 60mm piston with MoS2 coating is matched to an aluminum cylinder with a plated aluminum sleeve. NOTE: Requires ND IY24 (410-KLX-1176) spark plug sold seperately.
