Baffling electrical problem continues -- HELP! - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 8 (permalink) Old 10-13-2019, 08:10 PM Thread Starter
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Baffling electrical problem continues -- HELP!

I am posting an update on a problem I am having with my 2006 Scrambler. Hopefully someone who did not see the original post will see this and have some ideas.

When I turn my ignition switch toward the "on" position, the oil and neutral flash momentarily but then both go out when the key reaches the actual "on" position. I repeat, BOTH THE OIL AND NEUTRAL LIGHTS MOMENTARILY FLASH AS THE KEY IS BEING MOVED TO THE “ON” POSITION but has not reached the actual "on" position. Once the "on" position is reached, all lights go out and there is no power to anything.

Based on my own ideas and several suggestions from other users of this site, I have done the following:
--Battery and fuses are all good.
--I checked and cleaned the contacts in the main ignition switch. No change.
--I installed a new main ignition switch. No change.
--I disconnected and “jumped” the kickstand safety switch. It is working correctly. No change.
--I installed a new starter relay cross-over. No change.
--I installed new coils. No change.

I am having a hard time imagining what other component failure would kill the power completely and shut off the oil and neutral lights when ignition key is in the ON position.

Thanks for any and all suggestions.
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post #2 of 8 (permalink) Old 10-13-2019, 08:41 PM
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Baffling electrical problem continues -- HELP!

Quote:
Originally Posted by Jack DG View Post
I am posting an update on a problem I am having with my 2006 Scrambler. Hopefully someone who did not see the original post will see this and have some ideas.



When I turn my ignition switch toward the "on" position, the oil and neutral flash momentarily but then both go out when the key reaches the actual "on" position. I repeat, BOTH THE OIL AND NEUTRAL LIGHTS MOMENTARILY FLASH AS THE KEY IS BEING MOVED TO THE “ON” POSITION but has not reached the actual "on" position. Once the "on" position is reached, all lights go out and there is no power to anything.



Based on my own ideas and several suggestions from other users of this site, I have done the following:

--Battery and fuses are all good.

--I checked and cleaned the contacts in the main ignition switch. No change.

--I installed a new main ignition switch. No change.

--I disconnected and “jumped” the kickstand safety switch. It is working correctly. No change.

--I installed a new starter relay cross-over. No change.

--I installed new coils. No change.



I am having a hard time imagining what other component failure would kill the power completely and shut off the oil and neutral lights when ignition key is in the ON position.



Thanks for any and all suggestions.


Hi there

It sounds like the ignition switch is bad mate...

Sorry just read that you put a new ignition on it... well it still sounds like one so check your earths and connections, also get your meter along the feeds and check resistance ... good luck mate!


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Last edited by Bonnie59; 10-14-2019 at 02:06 PM.
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post #3 of 8 (permalink) Old 10-13-2019, 11:35 PM
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Possibly a bad main power lead or earth connection. Try running a jumper cable fron the negative battery terminal to a good earth like one of the motor bolts and see if it makes a difference.

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post #4 of 8 (permalink) Old 10-14-2019, 04:03 AM
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Clean the contacts on the ignition switch. I had a non starting problem once, and this was the cure.............typically having been through everything.

Rob
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post #5 of 8 (permalink) Old 10-14-2019, 05:53 AM
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Hi
Firstly do you have a multimeter or test lamp you can use and a wiring diagram for your bike?
You say the battery is good and all fuses are ok so I assume when you have the ignition in the on position you still have 12 volts at the battery?
You need to start tracing forward from the battery through the fuse box and ignition switch to see where you're losing the power.
Have you checked all Earth's to the frame?
come back when you're ready to test and I can give you some pointers if you like.
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post #6 of 8 (permalink) Old 10-15-2019, 01:34 AM
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Faulty ignition switch. ...J.D.
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post #7 of 8 (permalink) Old 10-16-2019, 02:47 PM
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As you've replaced or tried a new ign switch, we need to look elsewhere. These bikes have a poor metal crimp on the main loom running near the steering head. Hard to assess as it's buried beneath layers of wrapping. Quite a few reports of strange electrical issues have been traced to that crimp....wires get stress cracked and either short or go open circuit.
I think one repair was to fill the crimp with solder??

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post #8 of 8 (permalink) Old 10-16-2019, 03:00 PM
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Here's one thread dealing with the crimped joint failure:

https://www.triumphrat.net/air-coole...ht-bucket.html

Not sure this was a thing on older models...but definitely on the later CanBus bikes.

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