| nighthawk 550 electrical problem [message #455019] |
Wed, 28 September 2005 11:30 |
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krusty kritter Wrote:
> jlpridge wrote:
> -
> The wording is as follows: "Bad connection from the battery (+)
> through the ignition switch to the switched +12v supply-input on the
> rectifier. Check the whole electrical circuit. This is one of the
> most
> difficult faults to find. Suspect the ignition switch itself, the
> fuse
> box and its connections. The rectifier thinks the battery voltage is
> too low while the voltage is correct or too high. Disconnect all
> terminals and clean them with contact cleaner." Hopefully this will
> clarify some things.-
>
> Yes, I think I understand what Electrex is trying to say. It's just
> that running the battery *charging* wire from the rectifier DC output
> through the ignition switch to the battery terminal is such a bad idea
> because it requires the ignition switch to carry so much current.
>
> However. There are some Hondas that have six terminals instead of five
> terminals coming from the rectifier regulator.
>
> The three AC inputs, a DC positive output and a DC negative output can
> also be found on the typical five wire regulator. Charging voltage in
> a
> five wire RR is monitored directly from the positive battery terminal
> or from a point between one pair of diodes *inside* the regulator unit
> itself in a five wire RR unit.
>
> The sixth wire on some Hondas is a sensor wire. If I understand the
> sensor wire business correctly from what some Honda riders have
> posted,
> the sensor wire seems to monitor charging voltage at some remote point
> on the battery bus or on the ignition bus. If the sensor circuit has
> to
> add the voltage drop across dirty ignition switch contacts and
> corroded
> electrical connectors, it may sense low charging voltage and may not
> tell the silicon control rectifier inside the RR unit to ground out
> the
> stator.
>
> That could result in frying the stator.
>
> It's no wonder Honda riders have been cutting off their electrical
> connectors and soldering the wires together to get rid of all the high
> resistance connections.
>
> It seems to me that the best place to attach a sensing wire that's
> supposed to monitor charging voltage would be directly to the battery!
>
> So. How many wires total go to your rectifier regulator unit, five or
> six?
>
> And, have you done that open circuit voltage test I mentioned?
Krusty,
I have not run the open circuit voltage test yet because the
bike will not rev to 5000 rpms. I will rechare the battery again and
hopefully the bike will run well enough and long enough to do this
test. As far as the wires to the rectifier, there are three. Red
w/white stripe, green, and black. I really do appreciate your time on
this.
--
jlpridge
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| Re: nighthawk 550 electrical problem [message #455024 ] |
Wed, 28 September 2005 15:48 |
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jlpridge wrote:
> I have not run the open circuit voltage test yet because the
> bike will not rev to 5000 rpms. I will rechare the battery again and
> hopefully the bike will run well enough and long enough to do this
> test. As far as the wires to the rectifier, there are three. Red
> w/white stripe, green, and black. I really do appreciate your time on
> this.
So, I suppose that there are three yellow wires from the stator going
to the RR, and red w/white stripe, green, and black, for a total of six
wires.
Honda's color coding may be red/white for the DC power output, green
for ground, and the black wire may be the sensing wires. Check it out
with your owner's manual wiring diagram and keep on tracing it out.
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