Rectifier swap question

Rectifier swap question 24 Jul 2006 12:52 #64289

77Davo650
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Posts: 222
Thank you received: 4

Does anyone happen to know offhand if a rectifier from a 1977 KZ400 will work on a 1977 KZ650c1? They both are the seperate reg/rect but the one I have from the 400 is different except that it looks to be the same wiring setup (except the stator wires are white instead of yellow)

Thanks!

77 KZ650 C1 (sold)
78 KZ650 B2 (sold)
78 KZ400 B1 (sold)
78 kz400 C1 (resto-mod)
78 kz400 C1 (hardtail low chop)
couple of possible project kz's in parts

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Rectifier swap question 24 Jul 2006 12:58 #64290

Sandy Offline User Fly High,Tony Posts: 2452 Thank you received: 13	Dave...post a Kawi part number and I can cross-ref it for You,Bud...jus to see what other bikes DO use the same rectifier. 1977 KZ1000 A-1
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Rectifier swap question 24 Jul 2006 13:00 #64293

77Davo650 Topic Author Offline User Posts: 222 Thank you received: 4	I'll look at it tonight and post the part #. Thanks! 77 KZ650 C1 (sold) 78 KZ650 B2 (sold) 78 KZ400 B1 (sold) 78 kz400 C1 (resto-mod) 78 kz400 C1 (hardtail low chop) couple of possible project kz's in parts
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Rectifier swap question 24 Jul 2006 13:10 #64297

RonKZ650 Offline User Posts: 3698 Thank you received: 237	21061-31 is the rectfier part #. Used only on the 1977 KZ650B1 and C1. Other rectifiers could work, but no other Kawasaki used the exact part. 321,000 miles on KZ's that I can remember. Not going to see any more.
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Rectifier swap question 24 Jul 2006 20:33 #64435

loudhvx
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Posts: 10868
Thank you received: 1615

The part number will be different from minor differences. Sometimes the part number is different just from wires being a different length.

I believe the 77 400 and 77 650 use a very similar rectifier (and even a similar regulator). it may be worth a try.

You could also make one for about $20.

www.geocities.com/loudgpz/GPZdiy3phaseRectifier.html

1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.