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Yamaha YBR 125 NO SPARK OR ENGINE MANAGEMENT LIGHT !!

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John_S1
L Plate Warrior



Joined: 04 Jul 2016
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PostPosted: 09:45 - 04 Jul 2016    Post subject: Yamaha YBR 125 NO SPARK OR ENGINE MANAGEMENT LIGHT !! Reply with quote
Hi, im wondering if anyone could give me some advice, i recently bought a yamaha ybr 125 as a non runner, i found that there was no spark so i checked the coil pack which seems to be ok and the side stand kill switch which again is ok. I then noticed that when i put the ignition on the engine management light doesn't come on at all. I've just replaced the CDI with a second hand one but its still the same, any advice what to do next? cheers john
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Ariel Badger
Super Spammer



Joined: 02 Dec 2006
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PostPosted: 10:06 - 04 Jul 2016    Post subject: Reply with quote
Have you checked all fuses?
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John_S1
L Plate Warrior



Joined: 04 Jul 2016
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PostPosted: 10:22 - 04 Jul 2016    Post subject: Reply with quote
i can only find one main fuse near the battery and thats fine.
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Evil Hans
World Chat Champion



Joined: 08 Nov 2015
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PostPosted: 10:55 - 04 Jul 2016    Post subject: Reply with quote
Have you checked that the EM bulb is OK?
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zark
Trackday Trickster



Joined: 18 Dec 2013
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PostPosted: 10:59 - 04 Jul 2016    Post subject: Reply with quote
What year? FI or carb? Kick start or electric only?
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John_S1
L Plate Warrior



Joined: 04 Jul 2016
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PostPosted: 11:06 - 04 Jul 2016    Post subject: Reply with quote
I haven't checked the bulb ill have a look at it next.

Its 2011, fuel injected, electric start only
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John_S1
L Plate Warrior



Joined: 04 Jul 2016
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PostPosted: 11:17 - 04 Jul 2016    Post subject: Reply with quote
Bulb had blown !! so got EM light back on but it doesn't flash to give me any fault codes.
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GixerMark
Derestricted Danger



Joined: 24 Oct 2016
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PostPosted: 12:06 - 26 Oct 2016    Post subject: Reply with quote
Did you get anywhere with your fault?
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cb1rocket
World Chat Champion



Joined: 30 Jan 2010
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PostPosted: 08:54 - 30 Oct 2016    Post subject: Reply with quote
Check the battery is fully charged. Another topic posted this was the fault on a ybr250
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Evil Hans
World Chat Champion



Joined: 08 Nov 2015
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PostPosted: 09:49 - 30 Oct 2016    Post subject: Reply with quote
cb1rocket wrote:
Check the battery is fully charged. Another topic posted this was the fault on a ybr250


... which was posted by the same guy that bumped this sixth month old thread Rolling Eyes
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ThatDippyTwat
World Chat Champion



Joined: 07 Aug 2016
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PostPosted: 10:29 - 30 Oct 2016    Post subject: Reply with quote
Yet again, it screams of a dead/dying battery.

Do you hear the fuel pump priming when you turn the ignition on and the EM light is lit? If so, bump it, take it out for a good, long run, and I bet your problem goes away. I am assuming you have an MOT, tax, insurance etc. If you don't, then charge it with a charger.

If it keeps happening, and you *are* giving it long runs at a decent throttle, then the battery has been discharged to a point where it is damaged.
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Old Thread Alert!

The last post was made 9 years, 23 days ago. Instead of replying here, would creating a new thread be more useful?
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