Author Topic: [1976 K] Wiring harness differences?  (Read 2236 times)

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Offline rebabal

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[1976 K] Wiring harness differences?
« on: February 15, 2010, 06:47:08 AM »
I have a '76 K and I want a new wiring harness, the previous owner thought it was a good idea to screw everything up.

I'm perusing through eBay and I see this harness but it says it's for bikes up to 1975.

Can I make this work for my 76?  I don't see any other new harnesses for my year and I'm not familiar enough with my bike and the various model changes to make up a sound enough decision on my own.

Also, I looked through the FAQ section for am enthusiast supplier (I hate eBay) but couldn't find one - however I did find a great deal of other vendors that I've bookmarked :).

Thanks!
'90 CB-1 (CB400F)
'76 CB750k - '78 F Brake Conversion
'03 CRF230

Offline cb750k77

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Re: [1976 K] Wiring harness differences?
« Reply #1 on: February 15, 2010, 07:30:26 AM »
basicly 76-78 are the same... 75 -73 (72) was different... mostly had to do with the frame and what electrics came on the bike...

if you can wait... i'll pm you the details...
CB750k77 rebuilt (almost)

Offline rebabal

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Re: [1976 K] Wiring harness differences?
« Reply #2 on: February 15, 2010, 06:17:52 PM »
What are the main differences?  I can't find anything online about the 76+ models.

Could I make it work if I reuse some of the harness that's already on the bike?
'90 CB-1 (CB400F)
'76 CB750k - '78 F Brake Conversion
'03 CRF230

Offline rebabal

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Re: [1976 K] Wiring harness differences?
« Reply #3 on: February 17, 2010, 08:09:59 AM »
bump :)
'90 CB-1 (CB400F)
'76 CB750k - '78 F Brake Conversion
'03 CRF230

Offline andy750

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Re: [1976 K] Wiring harness differences?
« Reply #4 on: February 17, 2010, 09:54:31 AM »
Parts n more sell your harness for $75. Its not NOS but it does work very well - I have one on my K2 and will be buying one for the K4. K3 and above will work on your bike.

Andy
Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline rebabal

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Re: [1976 K] Wiring harness differences?
« Reply #5 on: February 17, 2010, 10:31:38 AM »
Thanks! I emailed a dude on eBay who had NOS K1 harnesses and asked if he had any for '76 he said he had 3 left - but he wanted 350$ for it.

I told him that was too high, at least for my opinion.

Thanks for the clarification!
'90 CB-1 (CB400F)
'76 CB750k - '78 F Brake Conversion
'03 CRF230

Offline climbingaz

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Re: [1976 K] Wiring harness differences?
« Reply #6 on: February 17, 2010, 12:22:39 PM »
Parts n more sell your harness for $75. Its not NOS but it does work very well - I have one on my K2 and will be buying one for the K4. K3 and above will work on your bike.

Andy


Do you think the Parts n More harness would also work on a K8?

Offline andy750

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Re: [1976 K] Wiring harness differences?
« Reply #7 on: February 17, 2010, 12:56:00 PM »
Parts n more sell your harness for $75. Its not NOS but it does work very well - I have one on my K2 and will be buying one for the K4. K3 and above will work on your bike.

Andy


Do you think the Parts n More harness would also work on a K8?

No it wont as the ignition switch is different between the K3-K6 and K7/K8. I suppose you could modify it but its not a straight swap.

Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline rebabal

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Re: [1976 K] Wiring harness differences?
« Reply #8 on: February 18, 2010, 12:22:49 PM »
I'm a little paranoid, I'm having people tell me that the PartsNMore harness won't work for my year bike so I just want to ask again and make 100% sure.

Does the "MAIN WIRE HARNESS LOOM - CB750K (73-75)" apply to my 1976 CB750K?

Sorry for the second guessing, I just hate returning stuff bought online.
'90 CB-1 (CB400F)
'76 CB750k - '78 F Brake Conversion
'03 CRF230

Offline cb750k77

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Re: [1976 K] Wiring harness differences?
« Reply #9 on: February 18, 2010, 05:03:01 PM »
NO it will not work your ignition switch is on the handle bars on a 76 and 73-75 is below the tank! there are other minor diferences as well like connector locations and so on... that make it NOT work!!!!
CB750k77 rebuilt (almost)

Offline rebabal

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Re: [1976 K] Wiring harness differences?
« Reply #10 on: February 19, 2010, 08:00:39 AM »
If it's just placement of plugs could I not just splice them?  There's a dude on eBay wanting ~350 bones for a proper NOS 76 harness and that's retarded.

75$ is much more appealing, especially if all I need to do is move a thing or two around.

I wouldn't mind moving my ignition switch anyhow.
'90 CB-1 (CB400F)
'76 CB750k - '78 F Brake Conversion
'03 CRF230

Offline andy750

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Re: [1976 K] Wiring harness differences?
« Reply #11 on: February 19, 2010, 08:36:09 AM »
I have to say I am very curious now about how different the K6 harness is....why not look at a wiring diagram and find out for sure...

Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline rebabal

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Re: [1976 K] Wiring harness differences?
« Reply #12 on: February 19, 2010, 01:22:31 PM »
I planned on replacing all my electronics anyways, if it's just placement of plugs/wires I think I could manage to make the 75 harness work.

I'll try and sift through some documentation to see, I can't find anywhere selling a 76+ harness - which blows.
'90 CB-1 (CB400F)
'76 CB750k - '78 F Brake Conversion
'03 CRF230

Offline Toxic

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Re: [1976 K] Wiring harness differences?
« Reply #13 on: February 19, 2010, 04:50:57 PM »
I bought the partsnmore harness and then bought the 73 switch gear so it would all work with my 76 motor.

Sit done with a 76 and a 73 wiring diagram and the differences are not that many.

The ignition relocation is only 4 wires.  Or just mount your ignition switch below the tank.

Offline Pawsoff

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Re: [1976 K] Wiring harness differences?
« Reply #14 on: February 20, 2010, 02:01:01 PM »
is the Parts n More harness compatible with a 1976 CB550K or just the 750?

$75 sounds to good to be true
Pawsoff
1977 CB550F
On the road, slowly improving the bike :)

Offline rebabal

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Re: [1976 K] Wiring harness differences?
« Reply #15 on: February 20, 2010, 08:23:49 PM »
I bought the partsnmore harness and then bought the 73 switch gear so it would all work with my 76 motor

What exactly is a switch gear?  I probably know what you're referring to, I've just never heard of a switch gear.

Was the PnM harness a used, NOS, or custom/new?
'90 CB-1 (CB400F)
'76 CB750k - '78 F Brake Conversion
'03 CRF230