Author Topic: 1970 CB750 coils?  (Read 1150 times)

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Offline 70CB750

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1970 CB750 coils?
« on: May 05, 2011, 08:57:02 AM »
Please, educate me on  coils for my Honda.   I replaced spark  plugs just to have a fresh start and number #3 cable disintegrated. 

I pieced it back together somewhat and it started up,  rough and no idle to speak of but it started.   Now I would like to replace all the cables, they definitely need it, but it looks like they are one piece with the coil.

Now I would like to know what coils could I use for it,  I want to - of course - replace both of them and preferably with detachable cables.

Please, advice, thank you.
Prokop
_______________
Pure Gas - find ethanol free gas station near you

I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
Sidecar


CB900C

2006 KLR650

Offline phil71

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Re: 1970 CB750 coils?
« Reply #1 on: May 05, 2011, 10:51:09 AM »
you can just change the wires

Offline kerryb

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Re: 1970 CB750 coils?
« Reply #2 on: May 05, 2011, 11:02:07 AM »
There is a wire replacement section in the FAQ under ignition
intrigued by the wail...seduced by the scream.

Offline Skunk Stripe

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Re: 1970 CB750 coils?
« Reply #3 on: May 05, 2011, 11:40:37 AM »
Keep in mind wire replacement means drilling out the old wires and then epoxying new wires in and hoping they make contact.
I know some do it for whatever reason, I would prefer to get new coils. Keep in mind, the ones you have are 41 years old and have been exposed to the elements. They may still work ok but coils do die.

Offline 70CB750

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Re: 1970 CB750 coils?
« Reply #4 on: May 06, 2011, 02:57:29 AM »
Yes, I found the replacement procedure,  seems interesting:) - might work.

Also from the schema it looks like the coil fires two sparks every time and one is wasted and the second one, in the other cylinder is used  - right?

I searched locally and online and now I am thinking about Ultimate Pamco Ignition Kit-New Electronic Ignition Kit for the CB750 from vintagecb750.

Opinions, experience anybody?
« Last Edit: May 06, 2011, 04:37:33 AM by 70CB750 »
Prokop
_______________
Pure Gas - find ethanol free gas station near you

I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
Sidecar


CB900C

2006 KLR650

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,832
  • Northern Virginia
Re: 1970 CB750 coils?
« Reply #5 on: May 06, 2011, 04:49:34 AM »
OK, I take it back, did the search, seems Pamco gets positive reviews by users.
Prokop
_______________
Pure Gas - find ethanol free gas station near you

I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
Sidecar


CB900C

2006 KLR650