70cc Big Bore cylinder kit for BWS ZUMA JOG Slider CW50 CG50 Vertical Engine

  
Cast iron 70cc PERFORMANCE cylinder kit. For Yamaha-Minarelli Vertical type 50cc engine. 1x 47mm bore size cylinder. 1x piston kit, 10mm pin. 1x cylinder head gaskets, base gakets. This 70cc peformance big bore kit. Intake & exhaust port are bigger than stock one. Port timing also redisign for performance. Head gasket is O ring type with special material for engine head gaskets. This kit will fit for following Model with. MBK: BOOSTER - BOOSTER R-ROCKET - BOOSTER 2004 - BOOSTER 2005. BOOSTER NEXT GENERATION - BOOSTER SPIRIT 50 - BOOSTER TRACK 50 - STUNT.

This kit only for ZUMA/ BW's 50cc model before 2002.