Don't rely on OHMs resistance readings to diagnose your Motorcycle Stator

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@MultiGeddie 10 ай бұрын

@bbbikeshop8359 , maybe you know what may be wrong? CBR600F4. Issues only at idle, none with higher RPMs. Measured resistance, 0,6-0,7 between terminals cold, 0,7-0,8 hot [does not exceed 0,1 for same terminals]. No continuity between terminals and ground hot or cold. Measured stator's output, all 3 wires. It is pretty steady - from 10V at 1k rpm going steadily upwards 10V at each 1k rpm, to 70V at 7k rpm. Same hot or cold. Seems ok? RR gives 14V when started cold [around 2,3k RPM]. On idle [1,4k rpm]: - goes to 13,5-14 [fluctuates] when hot. When lights ON, goes to 13,1, and then fluctuates between 12,9 to 13,5. - When ventilator kicks in [with lights off], drops to 12,9-13V; with lights on drops to 12,5 and sometimes lower, then starts dying and cuts out. This is extremely unpleasant at traffic lights when hot, cause it dies or dies when kicking in firs gear, and then it takes time to start and start moving [sometimes even does not start, i.e. starter runs but engine does not power on, like was flooded with gasoline...]. Several measurements show it takes 0,8-0,9 V for headlight [low beam], around 1V for ventilator. Is this ok? But it is slightly strange; if it generates 12V at 1200 rpm, it already undercharges the battery, not even compensating lights and ventilator. So naturally the battery charging shows around 12,5V at battery, as the electrical load uses battery's reserve. Is it supposed to be so low at low rpms? Run out of ideas, what may be wrong. If you have any ideas, will be very grateful :)

@bbbikeshop8359 9 ай бұрын

It could be that you may have a poor "Ground" somewhere? Also try connecting the regulator rectifier direct to the battery, if it not already is? Failing that the I would suggest you fit a good quality new Reg/Rect, then the only thing left would be the Stator. Sorry I cant be of more help.

@MultiGeddie 9 ай бұрын

@@bbbikeshop8359 thanks for suggestions. Any idea how to locate poor ground connection? As there are so many places that devices are connected to ground...