Author Topic: 1974 cb360t no spark? cold coil?  (Read 1765 times)

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Offline 547

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1974 cb360t no spark? cold coil?
« on: May 30, 2009, 04:21:22 PM »
Try to troubleshoot a 1974 cb360t
I did all the basic fuel delivery checks including cleaning the carbs and fuel lines and fuel tank vent and petcock.
No problems there.
Adjusted the points. While doing that I noticed that they spark. I don't know if they are supposed to do that. But they only spark intermittently. Timing is all set.
That took me to testing for spark. I get a weak spark on the right side and no spark on the right.
Used a condenser that I know is good and still no spark. I haven't tested the coils yet but found this:


Functional test.

If your spark plug boots are still installed, insert a spark plug in each one and arrange them so that the threads of each plug are touching the other. Each time you apply and disconnect 12v to the “gazinta” wires, both spark plugs should display a visible arc between the center electrode and the plug body electrode.

If your spark plug boots are removed, arrange the “gozouta” wires so that their ends are about 1/8 inch apart. Each time you apply and disconnect 12v to the “gazinta” wires, there should be a visible arc between the “gozouta” wires.

It is best to keep personal anatomy inventory well away from the “gozouta” vicinity during the functional test.
The coils believe you are a conductor, regardless of whether or not you have lead an orchestra, or handled tickets on a train, and will deliver a strong message to you if you provide the opportunity.

The 12v source should have a current capability of at least one amp.





Maybe someone could explain “gazinta” and “gozouta” to me.

anyhow- I noticed that the left coil is cold to the touch while the right coil is warm. What does that mean. Should they be warm or cold? Might that be the reason there is no spark on the left side?
what's up?
if the coils are good then where do I go next to figure out no spark?
thanks in advance
« Last Edit: May 30, 2009, 05:15:05 PM by 547 »
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Offline mlinder

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Re: 1974 cb360t no spark? cold coil?
« Reply #1 on: May 30, 2009, 05:04:59 PM »
Time to test the coils, assuming wiring from ignition to coils is good.
No.


Offline 547

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Re: 1974 cb360t no spark? cold coil?
« Reply #2 on: May 30, 2009, 05:13:52 PM »
I forgot to mention that I did get the bike to run for a few seconds but was too alarmed when the tach needle buried itself deep deep in the red to notice if both cylinders were firing. Don't know if that helps.
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Offline mlinder

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Re: 1974 cb360t no spark? cold coil?
« Reply #3 on: May 31, 2009, 07:37:04 AM »
Nope. That's something else. Test the coils.
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Offline cb650

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Re: 1974 cb360t no spark? cold coil?
« Reply #4 on: May 31, 2009, 07:51:06 AM »
If it went into the red pretty sure it was firing on both.  Does sound like a couple problems there.  Check all the connections a swap the coils see what you get. 
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Offline mlinder

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Re: 1974 cb360t no spark? cold coil?
« Reply #5 on: May 31, 2009, 08:03:47 AM »
If it went into the red pretty sure it was firing on both.  Does sound like a couple problems there.  Check all the connections a swap the coils see what you get. 

With no load (i.e. in neutral) they can easily redline with one cylinder firing.
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Offline 547

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Re: 1974 cb360t no spark? cold coil?
« Reply #6 on: June 01, 2009, 07:11:10 PM »
i removed all electric and am working on cleaning all connections. will swap coils and see what happens. thanks
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