Author Topic: 1975 CB750F  (Read 1954 times)

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Offline Sdsbassist

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1975 CB750F
« on: July 23, 2021, 09:10:35 PM »
Wanted an earlier F model and got one! Going to try and fix up this tank and do close to a restore.

Needs wiring cleaned up
Switched
Tank fixed
Some paint
New rear tire.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline seanbarney41

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Re: 1975 CB750F
« Reply #1 on: July 24, 2021, 12:37:06 AM »
wow...how do you plan to fix that tank?

excited for an f thread
If it works good, it looks good...

Offline david 750f

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Re: 1975 CB750F
« Reply #2 on: July 24, 2021, 01:59:46 AM »
F tanks always rust on the left side, side
stand parking
« Last Edit: July 24, 2021, 02:02:12 AM by david 750F »
1976 CB 750F

Offline Sdsbassist

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Re: 1975 CB750F
« Reply #3 on: July 24, 2021, 05:10:55 AM »
In thinking a lead or braise fix and then liner. I've heard positive about Caswell

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline BenelliSEI

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Re: 1975 CB750F
« Reply #4 on: July 24, 2021, 05:50:59 AM »
I’ve used Caswell with excellent results.

Offline jamesw

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Re: 1975 CB750F
« Reply #5 on: July 24, 2021, 07:32:50 AM »
Nice to see another F0 build.

I hope the rest of the seat rail is there.
72K-F 750 Cafe
75K 750 Cafe
75F 750 Restoration

Offline Sdsbassist

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Re: 1975 CB750F
« Reply #6 on: July 24, 2021, 07:35:09 AM »
Nice to see another F0 build.

I hope the rest of the seat rail is there.
Can you give me a pic for reference?

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline jamesw

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Re: 1975 CB750F
« Reply #7 on: July 24, 2021, 11:00:30 AM »
This seat trim should run along the seat along the side. I cant tell if it was cut off on yours or is buried behind the duct tape.

The hardware to secure the seat trim is not available anymore, so I've made my own from threaded screws/nuts from Home Depot
72K-F 750 Cafe
75K 750 Cafe
75F 750 Restoration

Offline Stev-o

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Re: 1975 CB750F
« Reply #8 on: July 24, 2021, 11:24:14 AM »
Congrats BassMan.  Add seat to your list, duct tape wont cut it! 
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Hoosier Honda

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Re: 1975 CB750F
« Reply #9 on: July 25, 2021, 03:49:15 PM »
 That sucks the tank is rotted, looks like the paint was in good shape otherwise. How is the muffler? I think I have seen more blue F0 owners here than orange.

Offline Sdsbassist

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Re: 1975 CB750F
« Reply #10 on: July 25, 2021, 06:56:45 PM »
Got a start. Sanded lightly for a few hours and am glad I did. Not perfect, but correct.

Repop seat cover on it's way tomorrow.

After those couple things getting the tank in for repair and starting on electrics.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Sdsbassist

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Re: 1975 CB750F
« Reply #11 on: July 25, 2021, 06:58:04 PM »
Pics below from tear down day 1.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Sdsbassist

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  • Gus, Austin, MN.
Re: 1975 CB750F
« Reply #12 on: July 25, 2021, 06:59:45 PM »
And the seat trim was very much toast. Any repos out there?

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline seanbarney41

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Re: 1975 CB750F
« Reply #13 on: July 25, 2021, 08:27:14 PM »
And the seat trim was very much toast. Any repos out there?

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I and now you too can only wish...there are none.  To make matters worse, the center of the seat trim was color matched to the bodywork, so not only is it difficult to obtain decent examples, you will also need the right color.
If it works good, it looks good...

Offline Sdsbassist

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Re: 1975 CB750F
« Reply #14 on: July 25, 2021, 09:07:11 PM »
And the seat trim was very much toast. Any repos out there?

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I and now you too can only wish...there are none.  To make matters worse, the center of the seat trim was color matched to the bodywork, so not only is it difficult to obtain decent examples, you will also need the right color.
Guess I need to save what I have!

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Bankerdanny

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Re: 1975 CB750F
« Reply #15 on: July 26, 2021, 02:08:41 PM »
And the seat trim was very much toast. Any repos out there?


Keep your eyes open on Craigslist and Facebook Market. People decide to install cafe seats and get rid of the stocker. That's how I got the trim for my seat.
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline david 750f

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Re: 1975 CB750F
« Reply #16 on: July 26, 2021, 06:22:56 PM »
They do show up occasionally on the Cmsnl website over in Europe. They had some about a year ago for around $50 USD. I just checked and they currently don't have any. Keep checking their website.

https://www.cmsnl.com/honda-cb750f_model50627/
« Last Edit: July 27, 2021, 11:46:46 AM by david 750F »
1976 CB 750F

Offline Sdsbassist

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  • Gus, Austin, MN.
Re: 1975 CB750F
« Reply #17 on: July 26, 2021, 07:51:42 PM »
Thanks david.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline Sdsbassist

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  • Gus, Austin, MN.
Re: 1975 CB750F
« Reply #18 on: July 26, 2021, 07:55:18 PM »
Mock up porn.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline ekpent

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Re: 1975 CB750F
« Reply #19 on: July 27, 2021, 06:06:18 AM »
 Will those white dots come off the gas tank ?
« Last Edit: July 27, 2021, 01:36:32 PM by ekpent »

Offline Bankerdanny

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Re: 1975 CB750F
« Reply #20 on: July 27, 2021, 01:26:44 PM »
One popped on n Facebook Market today, a pretty low mileage bike in Indiana. It has an aftermarket exhaust, but otherwise looks complete. He's asking $1,500
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline Sdsbassist

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  • Gus, Austin, MN.
Re: 1975 CB750F
« Reply #21 on: July 28, 2021, 07:29:00 AM »
Will those white dots come off the gas tank ?
Yes. They were used to scan dimensions for a 3d printer.

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Gus, Austin, MN.
Current Bike:  75 750F

Past bikes: 76 750K - "Iowa Blue",78 750K Craigslist find - "Black Beth;" 77 CB750K Basketcase, with a 75K engine; 1970 Cb750 K1, "Rosa Luxembourg"
74 cb750, 75 cb550, 77 kawa 650, 81 virago 750, 83 virago 920, 80 Honda Twinstar 200, 71 Honda CT70, 1971 Honda CB750 Rat Project "Black Dahlia Bitsa"

Offline ekpent

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Re: 1975 CB750F
« Reply #22 on: July 28, 2021, 08:44:19 AM »
Will those white dots come off the gas tank ?
Yes. They were used to scan dimensions for a 3d printer.

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Oh OK. Interesting. If you don't mind me asking what was it getting scanned for. Know nothing about that type of stuff.

Offline jamesw

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Re: 1975 CB750F
« Reply #23 on: July 28, 2021, 03:27:31 PM »
Here's a donor seat with trim from the Claw.

https://www.ebay.com/itm/293342085666
72K-F 750 Cafe
75K 750 Cafe
75F 750 Restoration

Offline jamesw

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Re: 1975 CB750F
« Reply #24 on: July 28, 2021, 03:36:56 PM »
https://www.ebay.com/itm/384296359191
Flake orange F tank $239

An overpriced blue tank
 https://www.ebay.com/itm/313590504007
72K-F 750 Cafe
75K 750 Cafe
75F 750 Restoration