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Old 02-21-2013, 08:46 AM   #1
Da Rooster OP
Joined: Feb 2013
Oddometer: 2
Question NX650 Dead in the water - Electrical Problem - Any ideas?

I have an 89 NX650 that is in great shape. Just clicked over 4000 miles. I parked it yesterday, and when I went to start it, I put the key in the ignition, turned the switch, and nothing. No lights, no start, nothing. Unfortunately, I was not at home when this happened...

I checked the fuses, and the main fuse. All good.

I pulled the battery, and brought it home to test/charge. It seems to be fine.

I checked the connector off of the ignitions switch, seems fine.

I can't imagine what has happened that would cause a total loss of power like that. Is there some single point of failure in the electrical system somewhere that could cause this, or do I now have an electrical gremlin to chase down?

Any thoughts or ideas you could share would be most appreciated.
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Old 02-21-2013, 03:43 PM   #2
Gnarly Adventurer
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Joined: Feb 2010
Location: Escondido, CA
Oddometer: 381
Any modifications?
Does it run if bumpstarted? (Or you can take a battery jumper straight to the starter motor)
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Old 02-21-2013, 06:53 PM   #3
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Joined: Jan 2006
Location: Oregon
Oddometer: 288
Kill Switch - Check the internals

Split the clamshell containing the guts of the kill switch. I suspect your problem is deeper, even though you already checked the wires exiting the switch. Clean out the internals and make sure the connection is working for both on/off with a solid 'snap' to the operation. There are tiny return springs inside the switch - it looks like they belong in a wrist watch. What happens is the old factory grease boogers up the mechanism giving you a false 'On'.

So basically, your bike is not firing because the kill switch is effectively 'Off'.

The switch grease gets especially boogery on low mileage bikes living in dry climates.

Good luck!

Claytonroy screwed with this post 02-21-2013 at 07:21 PM
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Old 02-21-2013, 08:41 PM   #4
lucky dog
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Joined: Dec 2008
Location: Cincinnati, OH
Oddometer: 1,111
Follow the main ground off the battery and check connection to frame?

Batteries are funny animals, try some jumper cables to be sure.

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Old 02-22-2013, 10:28 AM   #5
Da Rooster OP
Joined: Feb 2013
Oddometer: 2
Thanks gang. I'm definitely going to check the switch, and try swapping the battery with another one (fortunately I have a few extra bikes laying around). The bike is essentially bone stock, with the addition of heated grips and brush guards. The bike has had little exposure so there is hardly any corrosion anywhere - so I doubt wiring issues. My bet is with the switch, and I think from the wiring diagrams, that I should be able to jumper those wires to bypass it. I'll let you know what I find. Only one day without it so far, and I already miss it. The NX has become my new favorite!
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