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My honda nsr 125r won't start

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Oulddave
L Plate Warrior



Joined: 11 Aug 2018
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PostPosted: 18:05 - 11 Aug 2018    Post subject: My honda nsr 125r won't start Reply with quote
It has a spark but wont start
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Evil Hans
World Chat Champion



Joined: 08 Nov 2015
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PostPosted: 18:38 - 11 Aug 2018    Post subject: Re: My honda nsr 125r won't start Reply with quote
Oulddave wrote:
It has a spark but wont start


We'll get back to you later when we've had a chance to process the overwhelming amount of information you've hit us with...
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jaffa90
World Chat Champion



Joined: 06 Apr 2016
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PostPosted: 20:45 - 11 Aug 2018    Post subject: Reply with quote
Spray,
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MarJay
But it's British!



Joined: 15 Sep 2003
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PostPosted: 20:59 - 11 Aug 2018    Post subject: Reply with quote
If there is a GOOD spark, then it's likely fuel, but on my NS125R I had this problem and I changed the plug and the bike worked afterwards. They seem to be sensitive to spark plug condition.
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Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.
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Oulddave
L Plate Warrior



Joined: 11 Aug 2018
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PostPosted: 22:53 - 11 Aug 2018    Post subject: Reply with quote
I have put new coil and spark plug on
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ZebraDriver
Scooby Slapper



Joined: 13 Feb 2011
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PostPosted: 08:34 - 12 Aug 2018    Post subject: Reply with quote
But is it the right plug? A mate once got a bike for free because it wouldn't start. Previous owner had put a short reach plug in a long reach hole
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ZebraDriver
Scooby Slapper



Joined: 13 Feb 2011
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PostPosted: 08:34 - 12 Aug 2018    Post subject: Reply with quote
But is it the right plug? A mate once got a bike for free because it wouldn't start. Previous owner had put a short reach plug in a long reach hole
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Oulddave
L Plate Warrior



Joined: 11 Aug 2018
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PostPosted: 16:24 - 12 Aug 2018    Post subject: Reply with quote
It is a br9ecs
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stirlinggaz
World Chat Champion



Joined: 22 Jul 2007
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PostPosted: 19:41 - 12 Aug 2018    Post subject: Reply with quote
Oulddave wrote:
It is a br9ecs


hi,
thats the recommended plug, but its also crap.
most nsr owners i know swear by the silly priced iridium flavour (BR9EIX)
However, thats not relevant right now.
have you tried bumping it?
would, at least narrow things down a bit.

cheers,
GAZ
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arry
Super Spammer



Joined: 03 Jan 2009
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PostPosted: 19:51 - 12 Aug 2018    Post subject: Reply with quote
Oulddave wrote:
I have put new coil and spark plug on


Here's a plan; start at the beginning and tell us everything.

https://i.kym-cdn.com/photos/images/newsfeed/000/536/549/309.jpg
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bypass2
Spanner Monkey



Joined: 12 Sep 2013
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PostPosted: 20:13 - 12 Aug 2018    Post subject: Reply with quote
is the bike in regular use if not how old is the petrol. fresh petrol.is the plug getting wet. is there a good petrol flow from the petrol tap to the carb. try a bit of petrol down the plug hole then try starting it. try a new plug
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alains
World Chat Champion



Joined: 08 Jul 2004
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PostPosted: 20:33 - 19 Aug 2018    Post subject: Reply with quote
br9ecs is the worst , fit the br9eix and dont touch it !
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alains
World Chat Champion



Joined: 08 Jul 2004
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PostPosted: 13:36 - 25 Aug 2018    Post subject: Reply with quote
forgot to tell you :
follow the wire black/yellow coming from the CDI and going to the coil primary (with some part to the revcounter)
this wire provide the condenser discharge in the coil primay
as the intensity is micro clean contacts is essential . so clean the coil contact and the terminal
also this bug symptom is when the engine turn the revcounter needle comes frantic
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Old Thread Alert!

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