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Old 02-06-09, 01:17 PM   #1
gowiththeflow75
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Default MOT failure - rear LED light.

Hi any advice would be appreciated.

I had a fail from the MOT garage, I think its the smallest thing when the engine is running the tail light is fine but when you put the indicator on the top 3 rows fade in and out.

The voltage on the battery is ok 12.9v

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Old 02-06-09, 01:19 PM   #2
ricky
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Default Re: My Bike failed an MOT help please

earthing problem????
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Old 02-06-09, 01:22 PM   #3
fizzwheel
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Default Re: My Bike failed an MOT help please

It would be helpful if you told us a little more about the make and model of your bike.
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Old 02-06-09, 01:23 PM   #4
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Default Re: My Bike failed an MOT help please

Quote:
Originally Posted by ricky View Post
earthing problem????
+1

You have a bad connection somewhere mate. First off I'd have a look at the connectors for the rear lights - are they all clean and free of corrosion. if yes, then examine the cables - is there any sign of damage to the insulation that could be causing a short - pay particular attention to points where the cable might rub on the frame etc as this can wear away the plastic shieth after a while.

Last edited by philbut; 02-06-09 at 01:29 PM.
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Old 02-06-09, 01:29 PM   #5
gowiththeflow75
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Default Re: My Bike failed an MOT help please

Sv650 K4 I had a look at the connectors all local to the LED cluster all looks fine and clean, I am going to take the rear left hand side plastic bits of tonight and have a look as I can see a few conectors there.. Thinking about it I might just run a cable stright off the battery + - starght to the led's and see what happenes.. ta for the advice
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Old 02-06-09, 01:30 PM   #6
SoulKiss
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Default Re: My Bike failed an MOT help please

K4's have a problem with the rear lights - new unit required to fix I believe (unit is sealed so tricky to get into to look at fixing).

K5 onwards don't seem to have had this issue.
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Old 02-06-09, 01:32 PM   #7
gowiththeflow75
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Default Re: My Bike failed an MOT help please

For real has anyone else heard of this problem before !!!
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Old 02-06-09, 01:41 PM   #8
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Default Re: My Bike failed an MOT help please

i too have had this tail light problem but on my K3. top three led's (both sides) go out upon indicator or brake light/lights being used.
replacement rear light sorted it as all cables/connectors were fine
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Old 02-06-09, 01:49 PM   #9
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Default Re: My Bike failed an MOT help please

anyone got a spare tail led unit our one going cheap
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Old 02-06-09, 01:54 PM   #10
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Default Re: My Bike failed an MOT help please

Quote:
Originally Posted by Amplimator View Post
i too have had this tail light problem but on my K3. top three led's (both sides) go out upon indicator or brake light/lights being used.
replacement rear light sorted it as all cables/connectors were fine
My original post should have included K3 with K4.
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