Koso for mio again uses speedometer cable fitted on the front wheel hub for reading speed. Unlike those that can be found on FD125XRm or shogun 125, and those like of Honda Wave S 125 that uses variable reluctance sensor fitted on the drive shaft of the transmission. I have been incorporating the KOSO to work on my shogun 125 since my motorcycle do not have any speedometer cable. That alone is to difficult to do, up until i found a specific circuit to be added and removing some components soldered on the KOSO PCB and tried putting an add on circuit in replacement for the hall sensor that reads the rotating magnet of the original assembly for cable type. hence it works.
This video shows the setup on my workbench. the circuit will be pre fabricated using PCB software. Components and bill of materials to follow.
The calibration will be done by the original settings menu of the KOSO unit. since there is a percentage of tire circumference, but since varaiable reluctance will be used, the settings will be minimal.
I have used a signal generator to produce and simulate the reluctance sensor output. Well it works.
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sir pwede ba check ng tester yung speedo sensor ng shogunr? d na gumagana yung speedo nya.pero ngcalibrate din pag on mo ng ig.sw. thanks in advance
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