Quote:
Originally Posted by cbreater
I'm not sure about the tach. If you watch it, it goes up when down shifting and down when up shifting. There is no appreciable drop or gain in actual rpm so I think it's just the tach being confused by the ignition cut. None of my other bikes with ignition cut react that way at the tach, though we're talking on new GSXR's with a whole different ignition system going on.
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Exactly. On the Ninja, the tach is fed by a wire from the coil since it doesn't have an ECU. On an FI bike, the tach is fed from the ECU. Since I would assume the HealTech taps into the coil power or signal wires, it would interfere with the tach movement or reading.