Well I have a YB 125 thats in good shape but has been sitting in a shed for 7 years. It starts with a new battery and new pionts but the spark is not blue in colour. Does anybody have a circuit to add a transistor to the ignition to boost the spark. Thanks in advance. PS I dont have a Jaycar ignition system but its a bit big to fit on a small bike. And I do have one diagram which consists of one transistor and one resistor.
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Was googling and i found this 
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