Hey guys. I changed the gauges on my 250cc maxi scooter with the ones from a later model that basically looks the same except some minor details, but with fancier instruments, tachometer included. The problem is that the newer model uses a 3 wire speed sensor mounted around the wheel spindle, while the sensor on my model is a 2 wire sensor that reads a series of 32 teeth on the wheel. While the new speedometer seems to understand the signal is getting from the old sensor, the needle goes very high, above 140km/h while I barely reach 10-20km/h. Is there a way to convert the signal so that the speedometer shows the actual speed? So far I have tried a simple circuit using a 4017 frequency divider but without results... dividing from 2 up until to 10 did not seem to have any effect on the signal from the sensor, needle still going high as crazy. I'am kinda out of ideas, besides just getting the whole wheel plus the sensor of the newer model.
Photo 1: the wheel and the sensor on my model.
Photo 2 and 3 the wheel and the sensor from the newer model.
Photo 1: the wheel and the sensor on my model.
Photo 2 and 3 the wheel and the sensor from the newer model.
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