Chasing gremlins

  • JoeJak73
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Chasing gremlins

18 Aug 2024 18:50
#903418
77 KZ1000 LTD.    New to me,  ran like trash, cylnder 1 no fire.   Turned out to be the coil.   Had carbs rebuilt and I put carbs back on bike today for some tuning and popped my main fuse after a couple kicks.   Put new fuse in, turned on ignition and 5 seconds later, blew fuse again.   Thinking I have a wire bad somewhere.   (Probably why the starter never worked as well.    Guy I bought the bike from said it ran great and there's NO way this bike ran before I had it shipped to my house in CT from Iowa.     
The few questions I have are these:   Does it make sense to pull the plugs that are under the left side cover to isolate problems or are those unrelated to main circuit?   Secondly, even with my key off I seem to have 12 volts to the coil.    Is that normal?

 
77 kz1000 LTD

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  • TexasKZ
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Re: Chasing gremlins

19 Aug 2024 18:44 - 19 Aug 2024 18:48
#903459
With the key off, there should be 0 volts to the coils.If the Filebase has been restored, there is a good article on electrical diagnosis. If it is not available yet, hopefully one of the electricians will be along shortly.

In the mean time, I would disconnect the battery. Constant voltage to the coils can burn them out.
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
Last edit: 19 Aug 2024 18:48 by TexasKZ.
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  • Wookie58
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Re: Chasing gremlins

20 Aug 2024 01:20 - 20 Aug 2024 01:29
#903463
JoeJak73 wrote:
77 KZ1000 LTD.    New to me,  ran like trash, cylnder 1 no fire.   Turned out to be the coil.   Had carbs rebuilt and I put carbs back on bike today for some tuning and popped my main fuse after a couple kicks.   Put new fuse in, turned on ignition and 5 seconds later, blew fuse again.   Thinking I have a wire bad somewhere.   (Probably why the starter never worked as well.    Guy I bought the bike from said it ran great and there's NO way this bike ran before I had it shipped to my house in CT from Iowa.     
The few questions I have are these:   Does it make sense to pull the plugs that are under the left side cover to isolate problems or are those unrelated to main circuit?   Secondly, even with my key off I seem to have 12 volts to the coil.    Is that normal?




 
There is a link in my signature to a fault finding guide I put together (hopefully the link works) look at the section on "short circuit" faults and follow it through. Don't approach it in a random "try this and that" methodology or you will drive yourself mad. Take a look at the guide then update us, I will help you through
EDIT: the link isn't working (I will try and email it but the file is probably too large)
EDIT-EDIT: I have updated the link, see how you get on
 
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
Last edit: 20 Aug 2024 01:29 by Wookie58.

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Re: Chasing gremlins

20 Aug 2024 05:46
#903466
I tried the link and it takes me to an old thread where you announced posting the tutorial. I clicked on the link in your signature there and my screen scrolled down to the last post in that thread. 
[img
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

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Re: Chasing gremlins

20 Aug 2024 05:59
#903467
TexasKZ wrote:
I tried the link and it takes me to an old thread where you announced posting the tutorial. I clicked on the link in your signature there and my screen scrolled down to the last post in that thread. 
[img
In that old post if you click the attachment for the PDF it should open ??
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca

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Re: Chasing gremlins

20 Aug 2024 13:58
#903479
TexasKZ wrote:
I tried the link and it takes me to an old thread where you announced posting the tutorial. I clicked on the link in your signature there and my screen scrolled down to the last post in that thread. 
[img


 
Same result...zooms me to the old thread...
Michael
Victoria, Texas

1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A

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Re: Chasing gremlins

20 Aug 2024 15:54
#903482
Mcdroid wrote:
TexasKZ wrote:
I tried the link and it takes me to an old thread where you announced posting the tutorial. I clicked on the link in your signature there and my screen scrolled down to the last post in that thread. 
[img



 
Same result...zooms me to the old thread...
did you try clicking on the attachment in the old thread ?
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca

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Re: Chasing gremlins

20 Aug 2024 16:15
#903484
Wookie58 wrote:
Mcdroid wrote:
TexasKZ wrote:
I tried the link and it takes me to an old thread where you announced posting the tutorial. I clicked on the link in your signature there and my screen scrolled down to the last post in that thread. 
[img




 
Same result...zooms me to the old thread...
did you try clicking on the attachment in the old thread ?
Do not see the attachment.
Michael
Victoria, Texas

1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A

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Re: Chasing gremlins

20 Aug 2024 18:58
#903488
Mcdroid wrote:
Wookie58 wrote:
Mcdroid wrote:
TexasKZ wrote:
I tried the link and it takes me to an old thread where you announced posting the tutorial. I clicked on the link in your signature there and my screen scrolled down to the last post in that thread. 
[img





 
Same result...zooms me to the old thread...
did you try clicking on the attachment in the old thread ?
Do not see the attachment.
i cannot see it either.
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

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Re: Chasing gremlins

21 Aug 2024 00:53 - 21 Aug 2024 01:12
#903492
TexasKZ wrote:
Mcdroid wrote:
Wookie58 wrote:
Mcdroid wrote:
TexasKZ wrote:
I tried the link and it takes me to an old thread where you announced posting the tutorial. I clicked on the link in your signature there and my screen scrolled down to the last post in that thread. 
[img









 
Same result...zooms me to the old thread...
did you try clicking on the attachment in the old thread ?
Do not see the attachment.
i cannot see it either.
Please see below screenshot, clicking it should give the option to download ??

Edit: just seen the filebase is up and running so I have put the guide in "General-Electrical" and updated the link in my signature





 
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
Last edit: 21 Aug 2024 01:12 by Wookie58.
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  • F64
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Re: Chasing gremlins

21 Aug 2024 20:33
#903528
Do you have a volt meter?
81-KZ440-D2.
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Re: Chasing gremlins

16 Sep 2024 10:26
#904352
Sorry for late reply - I totally forgot the update and I still have to check for constant power to coils.   The "new" coil I put it actually went up in smoke.   I put a coil in from Ricks and it works fine.   that was what was popping my main fuse.   The glass ones fire quick - I put a blade type connector in and the fuse didn't blow first- the coil did.     Let all the smoke out.   
Another issue has risen, so I will post that in the right section.   
Thank you everyone
77 kz1000 LTD

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