Author Topic: '76 400F Supersport Project (there is 2 of them...)***Pictures Now Posted***  (Read 12721 times)

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Offline Operator

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Here we go folks, just discovered a pair of 76 400F's. This is to be my first full-on project.

One is complete but hasn't run in a while. The other is mostly there, but has sat for a number of years. Starting with a carb tear down, new tires and who knows from there. Feel free to tell me if I am doing things wrong or right, especially if I am making extra work for myself. Photos are coming......
« Last Edit: August 02, 2012, 11:10:54 AM by Operator »
If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)

Offline Operator

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #1 on: May 07, 2012, 07:41:43 AM »
If anyone has a 400F tank that will fit, please let me know. I am concerned mine may not be salvageable. More to follow on that issue.
If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)

Offline Mugen_Stumpo

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #2 on: May 07, 2012, 11:01:56 AM »
super nice find!!!

i bet you'll mod the uncomplete one and restore the better looking one

looking forward to see great things happen!

Offline dawdish

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #3 on: May 07, 2012, 11:27:58 AM »
I have a tank, trade for a good header:)
« Last Edit: May 07, 2012, 11:42:04 AM by dawdish »
'75 CB400F
'72 CB500 Four
1 CB550 Chappa (barn find)
1 '75 CB550 (barn find)
'81 Guzzi V1000( I couldn't help myself)

Offline vfrpilot390

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #4 on: May 07, 2012, 11:40:45 AM »
Nice find.  I'll be interested in following your progress as I'm in the middle of restoring a 75 model.  You have nice starting points with both bikes.  Have fun!

Offline RickB

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #5 on: May 07, 2012, 03:40:46 PM »
Good luck with this one mate. Those headers look to be in nice condition with is a huge plus.

Offline dawdish

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #6 on: May 07, 2012, 04:37:06 PM »
Good luck with this one mate. Those headers look to be in nice condition with is a huge plus.

LOL, I know there hard to find.
'75 CB400F
'72 CB500 Four
1 CB550 Chappa (barn find)
1 '75 CB550 (barn find)
'81 Guzzi V1000( I couldn't help myself)

Offline Stev-o

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #7 on: May 07, 2012, 04:42:21 PM »
Subscribed. 
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline MoMo

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #8 on: May 08, 2012, 02:30:18 AM »
Good to see you bought both of them ;)...Larry

Offline Operator

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #9 on: May 08, 2012, 07:05:13 AM »
Thanks Larry, we couldn't resist. I just had to see them go to a good home. We are planning on putting the good one on the road for my wife, and with the second I will get to start the cafe I have always wanted to build! 

This is one of the best birthday presents ever! Oh wait, my 750K3 was my birthday present 3 years ago..... OK almost.

Dawdish, how much just to sell the tank, unfortunately I will need both of the headers.

Thanks to all for the encouragement to take this on, I will try not to dissappoint you with my lack of mechanical competence.

And a very special thanks to my wife for supporting my desire to see this through to completion.
If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)

Offline Operator

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #10 on: May 08, 2012, 07:08:05 AM »
Can anyone point me in the direction of good supplier for 400F carb rebuild kits??

Thanks
If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)

Offline zachz

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #11 on: May 08, 2012, 11:36:40 AM »
Lake City Honda or Western Hills Honda will both sell you the OEM kits below list price.  www.lakecityhonda.com and www.westernhillshondayamaha.com

Offline dawdish

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #12 on: May 09, 2012, 11:53:45 AM »


Dawdish, how much just to sell the tank, unfortunately I will need both of the headers.

I was thinking 125, no cap no petcock, plus shipping.

I'll tell ya mine is such a blast to ride I think I like it more than my 500...
'75 CB400F
'72 CB500 Four
1 CB550 Chappa (barn find)
1 '75 CB550 (barn find)
'81 Guzzi V1000( I couldn't help myself)

Offline Operator

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #13 on: May 10, 2012, 07:34:33 AM »
I will check on the shipping rates and let you know. I assume there are no issues with pinholes, excess rust etc??

Thanks for posting
If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)

Offline LesterPiglet

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #14 on: May 10, 2012, 07:38:56 AM »
David Silver is doing new tanks.
'Then' and 'than' are completely different words and have completely different meanings. Same with 'of' and 'have'. Set and sit. There, their and they're. Draw and drawer. Could care less/couldn't care less. Bought/brought FFS.


Les Ross.            Certified by a Professional

Offline jneuf

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #15 on: May 10, 2012, 07:48:03 AM »
I'll tell ya mine is such a blast to ride I think I like it more than my 500...

Mine is more fun than my 550 was...You get pretty confident pretty quickly tossing it around corners!

Good luck with the rebuild, I'll be watching!
'75 CB400f

Offline Operator

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #16 on: May 10, 2012, 11:21:18 AM »
Thanks for the votes of support, I will definitely check out the new tanks at DSS. Any and all tips and advice are more that welcome.
My theory at the moment is that I can overcome any lack of technical knowledge with enthusiasm and a few pints.

Yesterday I pulled the carbs.....that was fun. Thanks to whoever posted the tip about using a ratchet strap to pull back the airbox to get it out of the way. Worked great! Found out there were mice living in the airbox and filter for the last little while. (See photo) I'm confident that a little bit of rebuilding will sort them right out.

See? Enthusiasm right there!!!(I've never rebuilt carbs, but SOHC Digger says I can do it so I will believe him)

Here is a couple of photos to show the teardown progress. First tank is in great shape considering how long it has been sitting. Started poking around the second tank for any weak spots and pinholes. I'm pretty sure I found one........

to be continued...........
If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)

Offline OneWheelDrive

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #17 on: May 10, 2012, 11:28:39 AM »
Found out there were mice living in the airbox and filter for the last little while. (See photo) I'm confident that a little bit of rebuilding will sort them right out.
to be continued...........

Now THAT'S a ratty set of carbs!  Good luck, you can do it!
1975 CB550 cafe
1971 CB500 stocker
2008 Ducati Hypermotard 1100S *sold*
1973 CB350F *sold*
1975 CB550K Project "Keeper" *sold*
2010 Ducati Monster S4RS *sold*
1976 CB360T *sold*
1974 CB550K *sold*
1973 CB750K *sold*
1978 CB550K *sold*
2007 Vespa LX150 *sold*

Offline jneuf

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #18 on: May 10, 2012, 11:52:26 AM »
Wowza! That tank is rough!!
'75 CB400f

Offline dawdish

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #19 on: May 10, 2012, 01:07:47 PM »
I will check on the shipping rates and let you know. I assume there are no issues with pinholes, excess rust etc??

Thanks for posting

I have had no rust issues, no leaks, rode with this tank for about a month before i started the build.
'75 CB400F
'72 CB500 Four
1 CB550 Chappa (barn find)
1 '75 CB550 (barn find)
'81 Guzzi V1000( I couldn't help myself)

Offline Stev-o

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #20 on: May 10, 2012, 06:54:41 PM »
Wowza! That tank is rough!!

Nothing a little bondo can't fix....Ha!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Operator

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #21 on: May 11, 2012, 07:07:42 AM »
I would be better off attaching my petcock to a an empty antifreeze bottle and gun taping it to the frame...........
If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)

Offline Operator

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #22 on: May 14, 2012, 07:30:58 AM »
Checked out the new tanks from DSS, a little out of my budget range for this project, just waiting on my carb rebuild kits in the mail.

If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)

Offline Operator

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #23 on: May 14, 2012, 11:58:25 AM »
super nice find!!!

i bet you'll mod the uncomplete one and restore the better looking one

looking forward to see great things happen!

After a good look at both of them, this is exactly what is going to happen.

I don't know about great things, but I can guarantee that things will happen
If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)

Offline Operator

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Re: '76 400F Supersport Project (there is 2 of them...)
« Reply #24 on: May 17, 2012, 07:20:23 AM »
zachz,

Thanks for the tip on Western Hills Honda, great guys to deal with over the phone and I got a bunch of stuff that is harder to find north of the border. That and they ship to Eastern Canada for $15.00!!

Items ordered

Gaskets and O Rings for the carbs
Fork Seals and Rings
Air filter
Front brake diaphragm

Shipped for under $150.00

More updates as parts start showing up....


New question, can anyone recommend a certain tyre brand for the 400's. Looking for a commuter type of tire just for cruising around town that will last a few years and not break the bank. Please don't say Duro, had them on my '73 350F and they were horrible tyres.
« Last Edit: May 17, 2012, 07:28:47 AM by Operator »
If ever there was a creator of bastard sons, it is the open road, for she has claimed so many young men yearning for freedom......

1973 CB750 K3
1976 CB400F (Cafe Project)
1979 Yamaha XS400 (Currently up for Sale)