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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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  #1  
Old 13 Jun 2007
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No spark

Now that I've recovered the bike after it was stolen it won't start. This was traced to there being a total lack of a spark. I've tried an old spark plug instead, I've even bought a second hand CDI and I've done a continuity check on the coil (CDI side). I've put a digital multi meter on the LV terminals of the coil to look for a flicker of volts and there's nothing.

I'm running out of things to try, ideas anyone?
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Old 13 Jun 2007
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What Xt is it ?

Battery ?? Kick only ?
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Old 13 Jun 2007
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Wink Read me

Hi Alex,
I have a similar problem on another thread - no spark.

I have just been reading this "similar thread" so maybe it is of some use to you:-

http://www.horizonsunlimited.com/hub...-my-84-a-26020

As for me, I'm still scratching my head about all this electronic stuff!!

Cheers,

Dave
(I won't say "good luck" 'cos we both need a bit more than that!!!)
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Old 13 Jun 2007
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Oops, brain fade. It's an '89 3AJ XT600 Tenere.
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Old 13 Jun 2007
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Quote:
Originally Posted by AlexD View Post
Oops, brain fade. It's an '89 3AJ XT600 Tenere.
Kick or battery or both ? Sorry not over familiar with that model.

You you checked the plug cap and HT lead for continuity ?

Looks like your need to check all your wiring first for simple lose connections and earths then take a look at your genny.
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Old 14 Jun 2007
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Battery only. It worked fine before, then it was hotwired and stolen but abandonded a couple of miles away. Now when it's come back there's no spark. I'm trying to think of something that could have been broken by the botched hotwiring causing a short or perhaps other abuse.

The earth is good and the engine turns over healthily so the main wiring should be ok. Would a cooked regulator/rectifier or generator stop the plug from sparking? My gut instinct is no, but then what do my guts know about bikes!
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Old 14 Jun 2007
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Quote:
Originally Posted by AlexD View Post
Battery only. It worked fine before, then it was hotwired and stolen but abandonded a couple of miles away. Now when it's come back there's no spark. I'm trying to think of something that could have been broken by the botched hotwiring causing a short or perhaps other abuse.

The earth is good and the engine turns over healthily so the main wiring should be ok. Would a cooked regulator/rectifier or generator stop the plug from sparking? My gut instinct is no, but then what do my guts know about bikes!
Well if it was stolen then maybe your best starting at the ignition if it was hot wired.
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Old 14 Jun 2007
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I had assumed that the ignition only activated the electrics as a whole, like the kill-switch - but you might have something there.
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Old 14 Jun 2007
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Connections

Alex,
You are in a different situation from me, but have a similar problem - I have just got some progress with my issue (see my thread for the gory detail!).
What I would say/advise is look for the simple things first - loose connections is commonly quoted and that has turned out to be my problem, but not where I expected it to happen!!

Keep checking!!

Dave
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Old 22 Jun 2007
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same story here friend had xt400 artesia 1993 t3b bike for 7 years run perfect ,got stolen wiring totally shot ,had pickup tested it ok ,had new tdi unit as well new coil still nothing im total stuck if you have any idea how to get this bike up and running it would be great thanks karl uk
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