KZ650 F1 1980 Regulator Part Number Help

Hello Everyone.
I am having a problem with a charging system on my 1980 KZ650 F1. Stator and Regulator did not pass an electrical tests. I am looking for original Kawasaki Part number for the Voltage Regulator/Rectifier. The part number starts with 21066.... The regulator that i pulled out from the bike, is "Shindengen SH222-12". Please Help
Thank you

Welcome aboard! According to Kawasaki.com the part number is 21066-1014 (see image below). They are no longer available from Kawasaki, but when they were available the list price was more than $335. Here's a place that has a new old stock one for $175. www.nwvintagecycleparts.com/search-resul...arch.x=8&search.y=14 I have bought from them before and was very pleased. Ed

Kawasaki.com & Partziilla have the part numbers. From Kawasaki.com:

1980 KZ650-F1 --- REGULATOR,VOLTAGE --- 21066-1014.

Model (27):
KLT200-A1 (KLT200) (1981)
KLT200-A2 (KLT200) (1981)
KLT200-A3 (KLT200) (1982)
KLT200-A4 (KLT200) (1983)
KLT200-A4A (Duckster) (1983)
KLT200-B1 (KLT200) (1983)
KLT200-C1 (KLT200) (1983)
KLT250-A1 (KLT250) (1982)
KLT250-A2 (KLT250) (1983)
KLT250-C1 (Prairie) (1983)
KZ250-D1 (KZ250) (1980)
KZ250-D2 (CSR) (1981)
KZ250-L1 (CSR Belt) (1982)
KZ440-A1 (LTD) (1980)
KZ440-A2 (LTD) (1981)
KZ440-A3 (LTD) (1982)
KZ440-B1 (1980)
KZ440-B2 (1981)
KZ440-D1 (LTD Belt) (1980)
KZ440-D2 (LTD Belt) (1981)
KZ440-D3 (LTD Belt) (1981)
KZ440-D4 (LTD Belt) (1982)
KZ440-G1 (1982)
KZ650-E1 (LTD) (1980)
KZ650-F1 (1980)
KZ750-G1 (LTD II) (1980)
KZ750-M1 (CSR Twin) (1982)

No eBay APP ID and/or Cert ID defined in Kunena configurationThis one might work. Or search eebbaayy for 1980 KZ650 voltage regulator.
I guess your 650 has a single phase charging system???

Thank you very much martin_csr. I looked up the part number with Rick's Motorsports and they manufacture an aftermarket new Regulator for my bike. thanks for the links.

Be VERY careful about what you buy from Rick's. They do no always know which parts go with which bikes, and they sell "Universal" stuff that may not be compatible with your bike. Try these folks:

www.oregonmotorcycleparts.com/Products.html

Thanks for the warning 650ed. After lots of calls and research, i found a yard in Upstate NY, that has the original Japanese part from a running bike for $30 shipping included. This guy came recommended as honest and knowledgeable man . I think I will try him. for 30 bucks, its worth a try.

Thanks

If buying used, I would check to see if there are any modern bikes w a similar charging system.
My 81 650 is 3-phase & I installed a reg-rec from a 2007 Ninja 500 ($25)(credit to loudhvx).
The part is virtually identical to the old stock unit.