Regulator / Rectifier wiring question - 660

[Gobsheen]

Hi,
Hopefully a straight forward question. I'm trying to source an alternative reg/rec as a spare. Word on the street is......'they all do the same basic job'......5 standard wires, etc. But, my Mastiff unit has a sixth smaller brown wire and I don't know what it's for. Is it simply an earth or does it have a specific function?

[den]

meter it out to the casing. browns usually earth,,

[crocodilemick]

Correct, a reg/rec will usually have 3 wires in from the alternator (same colour, single connection block), and 2 or three outputs. These will be one earth (brown for MZ) and one or two positives (if there are two live wires, one to main live feed on loom, and one to battery). Of course, there are always exceptions, best to get a reg/rec from a similar sized vehicle - any of the 660's should be perfect, and then check the wiring diagram from the source vehicle against your own vehicle diagram.

Looking at the Mastiff diagram, you have one brown to earth, one red/black to the main live feed on the loom, and one red/white(? rt/ws on diagram ws = weis), which goes to the fusebox and on to the battery.

[Gobsheen]

Thanks guys!

[DAVID THOMPSON]

i keep one in stock from a CX500 Honda and have used it on the rt125 in the past
it has 3 yellow wires you just tape up the extra one and it worked fine for 2 weeks
till i got a replacement
should work on a lot of bikes

dave

[Gobsheen]

The reg/rec saga goes on! Having watched a couple of videos on youtube, I learned how to test the diodes properly and annoyingly enough, they all look good (consistent zeros and ~0.52 on diode check). The voltage at the battery never goes above about 14.7v when revved.
One thing to get your input on is this. I've read talk about a sign of reg/rec failure is lights getting brighter with revs. My certainly get a bit brighter between idle revs and riding revs. I've always assumed that's normal but maybe not........?
When I was checking the reg/rec with the meter, I noticed that 2 of the wires appear to be reversed when compared to the bike side of the connector. I've uploaded the pic to flickr https://flic.kr/p/xSAN2d

You'll see that the brown and black/red wires are reversed. I switched them over to see what would happen and blew a fuse straight away so swapped them back. I'm assuming the wire mismatch isn't normal but know that the previous owner buggered about with the wiring so not sure if that's the cause.........?????!!! Any thoughts?
Last question is.....is the reg/rec for a Mastiff/Baghira the same as a Skorpion? A breaker on ebay tells me they are the same unit but someone else selling new replacements have them listed as different with the Skorpion unit being £35 and the Mastiff one at £125!

[duncmac]

Not sure if this is any help, but

http://www.electrexworld.co.uk/acatalog/RR98.html



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Re: Baghira 660 Regulator / Rectifier Part # Needed

Postby DAVID THOMPSON » Thu May 19, 2011 1:04 pm
look up
http://www.electrosport.com/

then a KLR 650
should be the same
electro sport = esr260 for KLR 650
a lookup in europe says rr26 for muz rr26 also fits KLR 650
best to talk to there help line
the one for my rt125 crosses to a Kawasaki also