3 yellow wires one ridiculously hot nc30

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leerc
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3 yellow wires one ridiculously hot nc30

Post by leerc » Wed Jan 18, 2012 12:33 pm

3 yellow wires on right hand side of engine coming from the same sheath but 1 it red hot and burned the other 2

all insulation replaced and 1 is still hot

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porndoguk
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Re: 3 yellow wires one ridiculously hot nc30

Post by porndoguk » Wed Jan 18, 2012 12:42 pm

high resistance = loose connection or poor contact, this is from the alternator to the regulator recifier.

a common thing on these bikes which could indicate a faulty reg/rec do a search gets asked weekly here.

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ibby4585
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Re: 3 yellow wires one ridiculously hot nc30

Post by ibby4585 » Wed Jan 18, 2012 12:44 pm

What are you asking buddy?

The 3 wires you described are from the stator, which I would say will be black, burnt and knackered. Whip the flywheel cover off and the flywheel and have a look.

Kris

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Re: 3 yellow wires one ridiculously hot nc30

Post by porndoguk » Wed Jan 18, 2012 12:47 pm

ibby4585 wrote:What are you asking buddy?

The 3 wires you described are from the stator, which I would say will be black, burnt and knackered. Whip the flywheel cover off and the flywheel and have a look.

Kris
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Re: 3 yellow wires one ridiculously hot nc30

Post by ibby4585 » Wed Jan 18, 2012 12:51 pm

Hello mate. Not yet, working on it. :-)

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Re: 3 yellow wires one ridiculously hot nc30

Post by leerc » Wed Jan 18, 2012 3:13 pm

iv got a new reg/rec to go on,ill get to that after the engine problems are rectified

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Re: 3 yellow wires one ridiculously hot nc30

Post by porndoguk » Wed Jan 18, 2012 3:40 pm

leerc wrote:iv got a new reg/rec to go on,ill get to that after the engine problems are rectified
i wouldnt do it after id do it now, if that fails your bike WONT run, plus youll be fucking your battery up the longer you leave it,
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Re: 3 yellow wires one ridiculously hot nc30

Post by Neosophist » Wed Jan 18, 2012 4:07 pm

Those 3 yellow wires come from the generator and carry a lot of high current, which the reg/rec then drops to charge the battery.

If the wires are hot they have excess current.. this is usually a bad conenction.. they goto a spade connector block.. this gets dirty over time and causes lots of heat and melts the block.

If you repair / replace these wires they MUST be soldered and not crimped or twisted.

While your at it worth doing electrical tests on the genny output to make sure it's still in spec.

I've chopped the block connector off completely in the past and hard-soldered the wires together..
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Re: 3 yellow wires one ridiculously hot nc30

Post by leerc » Wed Jan 18, 2012 4:23 pm

its a easy job so ill stick that on tomorrow

its the only 1 i didnt change as i ran out of crimps

ill solder all 3 aswell

luckily i have put the fairing back on

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