Big Bore Cylinder Barrel Kit: Yamaha CS50 CS 50 (2003-2009) Kawasaki Z400 This high performance ignition coil

This high performance ignition coil pack is designed to upgrade the original ignition coil on a Yamaha RX100 for the years and models shown above

If you're having spark issues with your XS 1100 then it's a good idea to get the coils replaced to get your spark back

To replace OEM: 21121-1177 or 21121-1178

If you're having spark problems on your Kawasaki ZXR750 then it's a good idea to get some new coils on the bike as these could be the culprit to a weak spark

To replace cylinder: 12101-GEL-A80 or 12101-GB2-000

Big Bore Cylinder Barrel Kit: Yamaha CS50 CS 50 (2003-2009) Kawasaki Z400 This high performance ignition coilBrand new big bore cylinder barrel kit to fit: Yamaha CS 50 Jog (2003 2009). This cylinder kit has been manufactured to upgrade the original top end on a Yamaha CS50 to 70cc for the years and models shown above. The kit includes the cylinder barrel jug, head, piston kit and gaskets. To upgrade from 50cc to 70cc. Liquid cooled models.