High performance racing CDI for Yamaha JOG ZUMA 2 stroke Minarelli 1E40qmb engines. Found in a variety of scooters and ATV's. Makes a stronger spark and increase throttle response for better acceleration out of the corners. ...

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High performance racing CDI for Yamaha JOG ZUMA 2 stroke Minarelli 1E40qmb engines. Found in a variety of scooters and ATV's. Makes a stronger spark and increase throttle response for better acceleration out of the corners. This CDI box enhancements include duplictor circuits, increased RPM redline, and altered ignition curves. Please ensure your make and model has the same connectors and number of pins prior to ordering.