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Electrosport Generator Rotor
Electrosport Generator Rotor

Item #ECT0001

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2 Questions
Answered:   2
Not Yet:   0
Q: How is this better than OEM?
2 years 7 months ago
You mention it being a high-quality replacement for an OEM device that is prone to failure, so what makes this better than the OEM version? What type of insulation do you use for the windings? I have heard a high-temp polyimide winding insulation is almost a necessity in these to keep them lasting more than a year.
Expert MotoSport Staff
2 years 7 months ago
A: For more information on manufacturing and design I would recommend contacting Electrosport directly at
Phone: (949) 305-4200
Q: Why doesn't my bike batetry charge?
Over 5 years ago
i bought this generator rotor for my 79 Honda cb750 k, but now i have no charging volts. with the old one that i thought was broken i had 13 which isn't enough to charge my bike and let it rev. now with the new one i only have 12. even less than before. what happened?
MotoSport Staff
Over 5 years ago
A: Here is what Electrosport had to say.

"Maybe the rotor is bad. Check the resistance of the rotor by measuring between the two copper slip rings. It should be right about 5.3 ohms. If it is, then you probably have a broken regulator, which could be tested by bypassing the regulator circuit."

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# Part Numbers
Product Variant Manufacturer Part #
Electrosport Generator Rotor ESF901