Author Topic: 1976 CB400F  (Read 4266 times)

Offline Wiinberg

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1976 CB400F
« on: September 01, 2017, 11:56:36 PM »
Hi all, thought i'd start a thread with my new winter project. Bought this 400F a couple of weeks ago for 1200 pounds (that's about the cheapest possible for 400F in Denmark). It has 26.000 miles on it and in need of a lot of TLC. Also gonna be opening it up, as the cam chain rattles like a hunting party of rattle snakes. Who knows how long it has been doing that.

This is my second 400F, and this one feels a bit under powered. So yet another reason to have a look on the engine. Going to check the compression before disassembly.

Not sure what the path is with this one. I am strongly considering a 466 kit, and also toying with the idea of dual disc up front. I'll see what the future brings. And to the most important part, some pictures.

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Offline Wiinberg

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Re: 1976 CB400F
« Reply #1 on: September 01, 2017, 11:57:32 PM »
A couple more.

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Offline hairygit

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Re: 1976 CB400F
« Reply #2 on: September 02, 2017, 12:03:37 AM »
Hi and welcome to the madhouse. That looks rather like a Mocheck Harrier, which was a conversion a British company did to 400/4's back in the 70's. Be interesting to know if it was one or just similar looking. Anyway, good luck with the work on it.

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Offline Johnwebley

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Re: 1976 CB400F
« Reply #3 on: September 02, 2017, 12:07:03 AM »
hi and welcome

 lots and lots of 400 owners here,as well as lots of help and advice

 enjoy the madhouse


  lots of fun
lifelong motorcycle rider,and fan

Offline Bryanj

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Re: 1976 CB400F
« Reply #4 on: September 02, 2017, 12:26:10 AM »
Twin discs is the hardest part as there are no mountings on the other slider meaning totally different fork assemblies

Offline hairygit

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Re: 1976 CB400F
« Reply #5 on: September 02, 2017, 12:31:52 AM »
Years ago people used 400 Superdream forks, wheels and calipers, but they are not easy to find these days, and comstars are not so popular on older classics.

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Offline mike the bike

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Re: 1976 CB400F
« Reply #6 on: September 02, 2017, 08:49:34 AM »
Welcome to the forum Wiinberg,
Looks like there's enough work to keep you busy over the winter.  I did the Superdream front end conversion back in the 80s.  It stopped OK but didn't look pretty.   Back in the 80s it wasn't a classic then, just another ornery bike.
When I went to the Police compound full of stolen bikes, two years after it went missing,  I recognised it straightaway by the odd wheels.
Where's that 10mm socket got to?

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: 1976 CB400F
« Reply #7 on: September 02, 2017, 08:56:43 AM »
Welcome
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline petermigreen

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Re: 1976 CB400F
« Reply #8 on: September 02, 2017, 11:15:04 AM »
Welcome from me also. Looks like a great project. But I pity your poor back as you don't seem to have a single working surface!

Peter

Offline Wiinberg

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Re: 1976 CB400F
« Reply #9 on: September 02, 2017, 02:55:05 PM »
Hi and welcome to the madhouse. That looks rather like a Mocheck Harrier, which was a conversion a British company did to 400/4's back in the 70's. Be interesting to know if it was one or just similar looking. Anyway, good luck with the work on it.

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Thank you. That sounds interesting, do you now of any way to identify it, what i should look for? I don't have any history on it sadly.

Welcome from me also. Looks like a great project. But I pity your poor back as you don't seem to have a single working surface!

Peter

I'm on the lookout for a small hydraulic stand, to get it off the ground in an acceptable height. That would be much appreciated i think.


With regards to the dual disc, i'm not sure what route i'll take. Maybe 550 front end or welding brackets to the right 400 leg if i can find someone to do a nice clean job.

Offline Wiinberg

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Re: 1976 CB400F
« Reply #10 on: September 02, 2017, 05:02:38 PM »
Welcome to the forum Wiinberg,
Looks like there's enough work to keep you busy over the winter.  I did the Superdream front end conversion back in the 80s.  It stopped OK but didn't look pretty.   Back in the 80s it wasn't a classic then, just another ornery bike.
When I went to the Police compound full of stolen bikes, two years after it went missing,  I recognised it straightaway by the odd wheels.

Thanks! Yes, and bit more work than i first thought, but that's the way it is with these bikes. Took the tank and rear fender off today, noticed a couple of red wires that shouldn't be there. Traced them to under the tank where i found a big birdsnest of wires coupled with two relays and then on to the head light bucket. Have no idea what they are for. I hate electrics. My last 400 i replaced the whole harness, already thinking about doing it on this one too  ???

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Also noted a couple of differences from my old one, this one has the passenger pegs mounted on the swingarm. And the steering lock built in the ignition vs. on the steering stem on my old one. That's pretty cool.

Offline hairygit

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Re: 1976 CB400F
« Reply #11 on: September 02, 2017, 05:28:53 PM »
The steering lock in the ignition lock usually means it was a U.S. model, but you can be sure by checking the frame/vin plate. The relays to the headlight were probably to allow the use of a higher wattage headlight bulb without putting excessive load on the existing wiring and switches.

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Offline mike the bike

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Re: 1976 CB400F
« Reply #12 on: September 02, 2017, 05:29:39 PM »
The swingarm - mounted footrests means it's an F1; the earlier model, which means it's (usually) red or blue.
Where's that 10mm socket got to?

Offline hairygit

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Re: 1976 CB400F
« Reply #13 on: September 02, 2017, 05:31:05 PM »
The swingarm - mounted footrests means it's an F1; the earlier model, which means it's (usually) red or blue.
Or a U.S. model, for some reason they didn't get frame mounted pillion footrests even on the F2

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Offline mike the bike

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Re: 1976 CB400F
« Reply #14 on: September 02, 2017, 05:43:44 PM »
I don't think it's a yankee one because of the back lights and indicators.
Where's that 10mm socket got to?

 

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