I need help with an electrical issue.

Are ya having a problem with your rig? We'll try to help. Share your tech tips and experiences here. Dr. Billy Glaser, author of the "Unofficial 750 Ural Service Manual" site myural.com, is moderating this section.
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paul fiction
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I need help with an electrical issue.

Post by paul fiction » Sat Aug 29, 2020 9:19 am

P1000156.JPG
I messed up.

My name is Paul and I think this is my second post. I live in South Wales, UK.

I have a 2008 Ural which I stopped riding about 6 years ago. At the beginning of the year I had cause to go into the shed where the bike has been stored and was dismayed to see how much the bike had rusted during it`s stay. This happened to coincide with my seeing a similar bike with similar mileage (but much better paint) for sale on ebay for £10000. You may have seen it, bright orange paint.

A little while later Covid hit the news and suddenly I needed something to do at home. I decided to give the machine a total respray which I have done. See pics below:

So how have I messed up?

Well, firstly I didn`t take enough pics of the bike for refrence, before I started.

Secondly I labelled each loom connection with cheap duct tape and between removing it and refitting, the labels fell off. ?*!!?

Then to compound matters I recovered the loom in fabric loom tape to improve its appearance and now I cant see any of the wire colour codes. Not that I would understand them anyway.

So, good people my question is this; is there anyone here who can help me put this right?

I can take detailed photo`s of the harness and of course I am quite happy to remove the cloth tape if thats necessary. When I turn the ignition on the headlights work but nothing else. It ran pefectly before i stripped it.

The machine has done only 4485 miles from new and NEVER let me down even once. So it is mechanically like new and now has no rust whatsoever so it`s pretty much a new bike. Brembo disk on front and electronic ignition on carbs.

It`s a little bit frustrating to me that after months of labour and great expense now I cant start it.

Can you help?


Paul.

I tried to add JPEGS but no go. HTTP error. Which type of file should I use? What size?
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stagewex
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Re: I need help with an electrical issue.

Post by stagewex » Sat Aug 29, 2020 10:10 am

You have a 2009 in your signature-line but are talking about a 2008, I'm assuming that's just a typo on your end? Otherwise you could just compare side-by-side.Not much difference between the two.

I can't help you with you loom issue other than it sounds like you'll at least have to open it up and trace wire by wire.

One other thing to consider also and from my experience when I did a full stripping/priming and paint... I also initially had starting problems because I had painted over metal parts and areas that needed to be somewhat "bare" to provide a Ground.
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Re: I need help with an electrical issue.

Post by wooden nickel » Sat Aug 29, 2020 11:31 am

You can get a wiring diagram off the Ural website. It is a royal pain but you can use an ohmmeter to trace the wires ad make sure which are which. It is probably easier to do this if you remove all light bulbs and relays so you won't read through the lamps or relay coils. Urals aren't known for retaining the color of their wiring but if your's still have color then the wiring diagram should help.
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Re: I need help with an electrical issue.

Post by TomsFunMachine » Sat Aug 29, 2020 1:25 pm

Often with things like this, you lay the loom back into what you think is the original position, and connectors line up with components, this larger ring connectors obviously goes tot he alternator, these larger ones the battery and starter, these ones, I have no idea, but I'll deal with them later... you get he idea. My advice is to start, then 'figure it out as you go along'. You'd be surprised at how far you can get with this method, as typically the large connectors can't be mixed up, they are somewhat unique. Good luck!
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Re: I need help with an electrical issue.

Post by RC20 » Sat Aug 29, 2020 1:51 pm

Agree with TFM.

If two connections are not obvious then strip enough to see the wire codes.

The books will have the wiring schematic not the wiring diagram that lays out the runs. Schematic is intended for trouble shooting not restoring a harness.
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Re: I need help with an electrical issue.

Post by jaybird » Sat Aug 29, 2020 2:16 pm

Start with the obvious connections and work out from there.

https://static1.squarespace.com/static/ ... iagram.pdf

https://www.imz-ural.com/owners-manuals

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Re: I need help with an electrical issue.

Post by Snakeoil » Sat Aug 29, 2020 5:51 pm

It is not as bad as you think. Others have already given you good guidance. The wiring diagram will help you sort out those that are not obvious by their position relative to bike components. Ohm meter will help you confirm. If you don't have one, a battery and a bulb or buzzer will do the same.

Take it one circuit at a time. And I would also suggest that you ring out the obvious ones as well just to be sure.

Get comfy, pour a glass of your preferred libation and have at it.
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Re: I need help with an electrical issue.

Post by tx2sturgis » Sat Aug 29, 2020 10:19 pm

This was never an 'electrical issue', its pilot error.

Good luck.
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Re: I need help with an electrical issue.

Post by VWK75S » Sun Aug 30, 2020 6:13 am

You're missing the vacuum port to the left carb from the petcock,
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Re: I need help with an electrical issue.

Post by paul fiction » Sun Aug 30, 2020 6:40 am

John,

Could you expand on that please?

From where to where, exactly and what does it do?

Is there one on the other side?

regards
paul
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Re: I need help with an electrical issue.

Post by paul fiction » Sun Aug 30, 2020 6:41 am

Thank you, thats really useful.
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Re: I need help with an electrical issue.

Post by paul fiction » Sun Aug 30, 2020 6:46 am

stagewex wrote:
Sat Aug 29, 2020 10:10 am
You have a 2009 in your signature-line but are talking about a 2008, I'm assuming that's just a typo on your end? Otherwise you could just compare side-by-side.Not much difference between the two.

I can't help you with you loom issue other than it sounds like you'll at least have to open it up and trace wire by wire.

One other thing to consider also and from my experience when I did a full stripping/priming and paint... I also initially had starting problems because I had painted over metal parts and areas that needed to be somewhat "bare" to provide a Ground.

Im pretty new to this forum stuff; whats a signature line?
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Re: I need help with an electrical issue.

Post by CrankyTom » Sun Aug 30, 2020 7:10 am

Signature line is in lower left hand corner of screen where it says "Ural gear up 2009,Dnepr K750 1975".
Accessed from user control panel.
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Re: I need help with an electrical issue.

Post by gobium » Sun Aug 30, 2020 8:32 am

paul fiction wrote:
Sun Aug 30, 2020 6:40 am
John,

Could you expand on that please?

From where to where, exactly and what does it do?

Is there one on the other side?

regards
paul
You have vacuum petcock
Do not leave petcock on prime position when parking.
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Re: I need help with an electrical issue.

Post by stagewex » Sun Aug 30, 2020 9:56 am

Wow, Good Eye Van/Gobium. I did not see that.

Turn your engine with the kickstarter a few times (with the key off even though it's not starting anyway).
If you feel pressure against your foot, take the spark plugs out and watch the gush of gas come out that could definitely ruin your day. Hydrolock.
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