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Author Topic: coil/plug set?  (Read 834 times)

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Offline TMNT

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coil/plug set?
« on: February 06, 2011, 06:51:10 PM »
The plug wires are pretty trashed. Can you rebuild these or should I just buy a used one off ebay? Are they available new? From where? Used they are 50$ off ebay so I am guessing new is a lot more. Suggestions?
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1978 cb750 Super Sport

Offline faux fiddy

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Re: coil/plug set?
« Reply #1 on: February 06, 2011, 07:00:39 PM »
There has been some success with this documented.

http://forums.sohc4.net/index.php?topic=52608.0

Search and you will find more...
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Offline Spanner 1

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Re: coil/plug set?
« Reply #2 on: February 06, 2011, 09:13:48 PM »
Hmmm... don't see a thing wrong with your coils... except you need new plug caps, about $20 from Z1 Ent.
Have you tested them ( coils ) ?..... do you know they are bad ( rare )?......... I'd put the money elsewhere on your bike , IMO  ;)
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If your sure it's a carb problem; it's ignition,
If your sure it's an ignition problem; it's carbs....

Offline TMNT

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Re: coil/plug set?
« Reply #3 on: February 06, 2011, 09:21:43 PM »
I wasn't positive if I could change just the caps? Which caps from Z1? If I can just change the caps I will do that. Trying to get this thing going as cheap as possible right now.
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Offline Spanner 1

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Re: coil/plug set?
« Reply #4 on: February 06, 2011, 09:43:59 PM »
Sure  :D.... you need 2x SD05F ( straight caps ) and 2x VD05F ( angled caps ) from Z1..... I would cut back each plug wire about 1/4 inch before screwing the new caps into the wires....  ;)... done; good as new  :)


Now let's talk about your ignition,  gaps/timing........ ;D... need to post what your bike is in your profile.
« Last Edit: February 06, 2011, 09:49:10 PM by Spanner 1 »
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If your sure it's a carb problem; it's ignition,
If your sure it's an ignition problem; it's carbs....

Offline faux fiddy

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Re: coil/plug set?
« Reply #5 on: February 06, 2011, 09:49:03 PM »
You might find something that works at  for  OReiley, Advanced Auto Part, or Autozone. Some sell the wire by the foot in different thickness. You might  also be able  shop for assorted colors of wires if you are color concious.

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Offline TMNT

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Re: coil/plug set?
« Reply #6 on: February 06, 2011, 11:02:06 PM »
1978 cb750...need to pick up a battery tomorrow...would like to get some caps too if i can find them somewhere local.
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Offline faux fiddy

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Re: coil/plug set?
« Reply #7 on: February 06, 2011, 11:14:56 PM »
You some pic's of the more customized bikes  with non stock plug wires. I would figure out if the coil is actually dead and work from there with what you can find as replacement.

As a previous poster said, on the old bikes money is better spent elsewherse. I think plug wire is $2 a foot.
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<'  '  '   '  o .  . . . . . . .................(
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