Help no spark
- Chaseyou0
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Help no spark
05 Nov 2018 22:53
I have a zn700ltd that had no wiring when I got it I'm trying to wire it like a bobber just the running part but I can't get spark at the plugs I'm confused I've tried everything I know
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- TexasKZ
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Re: Help no spark
06 Nov 2018 04:15
There is already a thread on this subject.
www.kzrider.com/forum/4-electrical/609557-wiring-help#793437
www.kzrider.com/forum/4-electrical/609557-wiring-help#793437
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
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- Patton
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Re: Help no spark
06 Nov 2018 07:03 - 06 Nov 2018 07:13Chaseyou0 wrote: I have a zn700ltd that had no wiring when I got it I'm trying to wire it like a bobber just the running part but I can't get spark at the plugs I'm confused I've tried everything I know
Bear in mind that ignition wiring only needs battery+ voltage to the coils and another wire from each coil to points or Dyna-S or whatever mechanism repeatedly grounds and un-grounds the coil.
It's the un-grounding that creates the high voltage surge through the spark plug wires.
For test running, it's okay to run a hot battery+ wire to the coils, which must be disconnected whenever the engine isn't running or being started.
Here's some diagrams that have helped me understand what's going on:
Good Fortune!

1973 Z1
KZ900 LTD
KZ900 LTD
Last edit: 06 Nov 2018 07:13 by Patton.
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- Patton
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Re: Help no spark
06 Nov 2018 07:12
An interruption for whatever reason in the secondary circuit can result in a non-firing spark plug.
Here are some examples of a flawed secondary circuit:
Good Fortune!
Here are some examples of a flawed secondary circuit:
Good Fortune!

1973 Z1
KZ900 LTD
KZ900 LTD
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