ZX Forums - View Single Post - 07 ZX6R Speedo not working. (Stays at 0)
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post #14 of (permalink) Old 01-24-2013, 06:59 PM
christikitty
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Joined: Jul 2011
From: B-Town Florida
I Ride: A warhorse H model ZX7, 93 ZX7/9

Posts: 3,608
The speed sensor works off of a magnetic switch. A hall effect. Now there has to be something there for the sensor to pick up the signal from. Either ribs on the circumference of the sprocket, or I have seen sprocket nuts with a square "crown" that the sensor reads from. I'm pretty sure you have the wrong nut. Can you post a pic of what you have setup as it may help us out a little bit. My money is you have the wrong sprocket nut on it and that is why it wont pick up the signal the ECU needs to send the pulse signal to the speedo head.
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