Quote:
Originally Posted by ninja250
You put a resistor from the spark plug wire to the microcontroller, then use it to count RPM. I guess you can use this against gear ratio to get speed (while the clutch is engaged). However, the gear ratio changes too so it pays to know what gear you are in. I forget how it all works.
Sort of difficult without GPS. Which is why our bikes have mechanical speedo. (pretty sure)
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I have the GPS wired and I plan on taking a wire off the tachometer (take a look at the wiring diagram )