Rewinding SC24 Stator CBR1000F

This forum has helped me get my 31 year old damaged barn find rescued bike up and going. This tutorial is a small thank you to the good people on this CBR forum who willingly and unselfishly give us their time and deep knowledge to keep our motorcycles going.


Read First

Please note this tutorial applies only to the second gen oil cooled SC24 and not for the 87/88 first gen SC21. Unfortunately these are no longer factory made anywhere. So I suspect we'd all better get used to doing stuff like this ourselves.


Some Key Search Words:

Honda CBR1000F Hurricane SC24 LD125-52 stator generator alternator rewinding

Honda part number 31130-mt3-003 / 31130MT3003
AND 31130-MS2-611 / 31130MS2611



Compatible Honda Motorcycles (visually check yours first)

· HONDA CBR1000F 1990-1996

· HONDA ST1100 1991-1995

· HONDA ST1100A 1992-1995

· HONDA CB1000 1994-1995

· HONDA CB750 NIGHTHAWK 1991-2003 (maybe)


Step Number One. If you can find a stator rewinding professional you can trust - do it. If the global postage system wasn’t in such disarray, mine would have gone straight to Roger Lovelock at Info@Bbbikeshop.Co.Uk who reconditions these for the SC24 – at a reasonable price.

Caveat: I have never rewired a stator before so there might be better ways of doing this. I strongly recommend installing a simple digital voltmeter on your instrument panel, attached to your battery, to monitor charging while engine is running afterwards.

Technical Info

This is a 36 slot 3 phase alternator. It produces AC current which is converted to DC by the regulator/rectifier. Original copper wiring is 1.11mm thick (including enamel coating) and you will need 10 unbroken metres of wire for each phase. 30 metres in total. Your replacement wire must be also be enamel coated. There are 13 windings around each slot pairs and 6 slot pairs/coils for each phase.

Before you start, also have a look at these links and other ones like them:


https://www.instructables.com/How-To...an-Alternator/

https://www.hondatwins.net/threads/d...-rewind.18510/

You can either do less winds with a thicker wire or more winds with a thinner wire. Go with less winds at slightly thicker.



Picture heavy PDF and Microsoft Word attachments below for further detail