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Old 25 February 2013, 17:39   #11
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The black wire on the one you've got is a Honda oddity. Connect it to the red-it's an 'auxiliary power' wire and is +12v. If you're not comfortable doing that just tape it off.

Alternatively, just give Electrex a bell-the unit you need is a standard unit and they'll supply off the shelf. It's just a 12v Rec/reg unit for a 3 phase alternator.
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Old 25 February 2013, 20:38   #12
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Quote:
Originally Posted by Nos4r2 View Post
The black wire on the one you've got is a Honda oddity. Connect it to the red-it's an 'auxiliary power' wire and is +12v. If you're not comfortable doing that just tape it off.
According to the wiring diagram he posted black is definitely a ground. It is also a ground on the motorcycle unit I installed on my outboard, which is exactly what I did. Am I missing something?
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Old 25 February 2013, 21:57   #13
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Quote:
Originally Posted by Peter_C View Post
According to the wiring diagram he posted black is definitely a ground.
No it's not-look at it again.The black in that wiring diagramme is a positive. The green is negative.
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It is also a ground on the motorcycle unit I installed on my outboard, which is exactly what I did. Am I missing something?
Probably not. Honda motorcyles use green as earth. I'll guess yours isn't a Honda rec/reg unit. They are the only ones that do it.
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Old 25 February 2013, 22:15   #14
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Originally Posted by Nos4r2 View Post
No it's not-look at it again.The black in that wiring diagramme is a positive. The green is negative. Probably not. Honda motorcyles use green as earth. I'll guess yours isn't a Honda rec/reg unit. They are the only ones that do it.
Upon closer inspection you are correct, the green is the ground and black is positive. I just saw it go around the diagram and assumed, which is the first mistake. Must be a European thing...In the USA it is either black or brown for ground. Mine is a Kawasaki regulator.
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Old 26 February 2013, 03:37   #15
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old Kawasaki motorcycle rectifier that I used on an old Yamaha 9.5 outboard for charging a battery this one has the red / black battery wires ( put a switch on one )for the battery and 3 white wires 2 in use from the coil the other ( redundant / not used for the outboard taped back ).
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Old 26 February 2013, 04:20   #16
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Must be a European thing...
No, it's a Honda thing. Honda in the USA are the same.
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Old 26 February 2013, 16:00   #17
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Quote:
Originally Posted by Nos4r2 View Post
The black wire on the one you've got is a Honda oddity. Connect it to the red-it's an 'auxiliary power' wire and is +12v. If you're not comfortable doing that just tape it off.
It's used on some cars too - I've pretty well figured out it's meant to be positive switched on with the ignition and is there to cut off the few mA the RR will otherwise draw. Not an issue on the original unit or for my use as I always isolate batteries if leaving the boat overnight etc. I've been poring over the Yamaha schematic to try find a switched live to do it perfectly if possible but I believe that black wire does have to be 12v+ or the RR won't switch on so might just jump it on to the red wire. Hopefully when I get round to doing it, unlike electing a pope, there'll be no smoke
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Old 28 August 2013, 17:32   #18
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FYI and to whomever messaged me the rectifier has worked fine all Summer with a lot of miles going up on the boat. It keeps pushing 14.2V so I often use it with the running lights on to burn off a little power. I ran it with a temperature probe on the first trip and it got up to 80-90C which seemed OK to me relative to the engine itself. So I went off on a few long trips since with no problem. You can find similar RRs on eBay.
Satisfying!
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Old 02 December 2013, 16:52   #19
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@Daibheid, Thank you for this information. This might've actually saved someone from spending around $300 and who knows, that person might be me. However, you mentioned that after a bit of cutting and fitting in your second post we can fit this in, can you tell us how much do we have to cute and whether or not filing instead of cutting and fitting will be a better option. Also, colour codes are generally not followed by all the companies because they are not that universal. In case of rectifiers and filters where you have multiple inputs and outputs, they use their own specified colours as specified in service books. Thank you again for the information.
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