I have a 2001 Yamaha RX 135 2 stroke motor bike and have installed an aftermarket performance CDI which claimed to give me better performance and RPM rev. But since I have installed it I seem to feel a significant loss of torque specially at lower ranges. This is a bit of problem when I have to drive up a slope or start my bike on an inclined angle. The CDI guys said that I might have to tune bike for rich fuel mix but am not sure how do I do it or if that would solve the problem.
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