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I have a 2012 CBR250RA with 90,000km (56k miles). I tried starting it going home from work today and the crank was slow, then when I got home I tried to start it again and it wouldn't turn over. I gave it a full charge and started that bike. The voltage didn't jump up when started or revved, just sat at 12.4v
I had a spare regulator/rectifier so swapped that with no success, the voltage still sat at 12.4v running.
I measured the output of the stator at the regulator plug (while connected) and got 1.4V, 2V and 3.4V AC when running, revving made little difference to the AC voltage.
I measured the stator resistance and it is 0.4ohms between all 3 windings. There is no measurable resistance from the windings to the frame/ground.
Would the stator still be faulty with resistance between the windings? Could it be something else?
Thanks in advance.
I had a spare regulator/rectifier so swapped that with no success, the voltage still sat at 12.4v running.
I measured the output of the stator at the regulator plug (while connected) and got 1.4V, 2V and 3.4V AC when running, revving made little difference to the AC voltage.
I measured the stator resistance and it is 0.4ohms between all 3 windings. There is no measurable resistance from the windings to the frame/ground.
Would the stator still be faulty with resistance between the windings? Could it be something else?
Thanks in advance.