No spark

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Webs
Posts: 15
Joined: Wed Dec 30, 2015 2:10 pm
Location: Exmouth devon

No spark

#1 Post by Webs » Mon Dec 04, 2017 2:57 pm

Need some help please. Trying to get a spark from a 500 basket case job. Got power from magneto red wire. Got a faint glow on the test lamp on the green wire. No power from orange coil wires coming out of cdi Magneto or cdi duff ?

Andy500R
Posts: 173
Joined: Thu Jun 27, 2013 5:14 pm

Re: No spark

#2 Post by Andy500R » Fri Dec 08, 2017 6:44 pm

I had same problem and cdi was duff
Although when I warm it up it works !!
I've done this about 20 times now so
I'm sure it's the cdi ?

Andy500R
Posts: 173
Joined: Thu Jun 27, 2013 5:14 pm

Re: No spark

#3 Post by Andy500R » Fri Dec 08, 2017 6:45 pm

And check your earths !!

2002tiil
Posts: 140
Joined: Mon Jun 01, 2015 5:49 pm
Location: Veendam, the Netherlands

Re: No spark

#4 Post by 2002tiil » Sat Dec 09, 2017 4:32 am

It would be good the show where the ground points are.

silverstrom
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Re: No spark

#5 Post by silverstrom » Sat Dec 09, 2017 3:05 pm

Meter the stator as your starting point. Easy to do. Check resistance numbers. It's all in the manual.
Last edited by silverstrom on Sun Dec 10, 2017 9:17 pm, edited 1 time in total.

Webs
Posts: 15
Joined: Wed Dec 30, 2015 2:10 pm
Location: Exmouth devon

Re: No spark

#6 Post by Webs » Sun Dec 10, 2017 4:23 pm

Hi thanks for the advice. Does anyone know how many earth points the loom has?

Webs
Posts: 15
Joined: Wed Dec 30, 2015 2:10 pm
Location: Exmouth devon

Re: No spark

#7 Post by Webs » Sun Dec 10, 2017 4:32 pm

Also cant find any info on testing cdi in manual

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jackson.40
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Location: Cambridge,UK

Re: No spark

#8 Post by jackson.40 » Sun Dec 10, 2017 6:54 pm

The earth point is on the battery bracket

Image

If you have a latter bike there is an earth wire on the reg screw

Image
Last edited by jackson.40 on Sat Apr 21, 2018 2:58 pm, edited 1 time in total.

silverstrom
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Re: No spark

#9 Post by silverstrom » Sun Dec 10, 2017 9:16 pm

Webs wrote:Also cant find any info on testing cdi in manual
Sorry, I misled you. I should have written meter the stator first as that is when it all begins. You need the proper resistance values. If your stator is good you move on to other possibilities. Test everything and when you have nothing left but the CDI, you have your answer. Typical testing for the CDI means trying another CDI, unfortunately.

The ignition and kill switch are also possibilities. Also the side stand switch, if it has one.

It can be a real challenge trying to resurrect a basket case with no known history. No spark issue can be simple, or very frustrating. Check all connectors, fuses, look for broken wires, etc.

You should put your location in your profile. You might find that help isn't far away.

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