Author Topic: CB750F Rider  (Read 865 times)

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Offline Sdsbassist

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CB750F Rider
« on: August 03, 2018, 02:39:15 pm »
So as a younger man, I scoffed at the 750Fs in favor of the Ks.

When searching for a winter project, I came across this F (and two 550 basketcases) and fell in love. I never really gave em a chance.

Anyways, this is gonna be the first one I do. Figure I now have enough winter projects for a few years!

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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 Stev-o

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Re: CB750F Rider
« Reply #1 on: August 03, 2018, 02:52:12 pm »
Score!   Looks good with those super bars on it.

So...what is the plan, Bass Man?!
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Offline Sdsbassist

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Re: CB750F Rider
« Reply #2 on: August 03, 2018, 02:57:55 pm »
Score!   Looks good with those super bars on it.

So...what is the plan, Bass Man?!
Make this one a runner. Could be a keeper for me.

I paid 1k for the whole lot. All motors are not stuck and all frames have titles. All will need work.

What's a good way for me to start?

Parts of me thought to start with the front end and work my way back.

It's gonna need a lot!

I don't know about paint either. I like the blue but it's chipping bad on the top.

You can tell with this thing tuned and ripped she will move.

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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: CB750F Rider
« Reply #3 on: August 03, 2018, 04:36:01 pm »
Started at the front.

Tire is junk. I think this wheel is savable.

Love the kill switch whatever the hell.

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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: CB750F Rider
« Reply #4 on: August 09, 2018, 07:46:04 pm »
So some more info on the bike. It's a 75F. My goal is to go through as much as I can, cleaning and repairing as I go starting from front to back.

So far I've tackled the tire and wheel, and rebuilt and polished the tubes. Also replaced a very leaky fork seal. My goal isn't perfection or a full restoration but a rehabilitation. There's potential here for a nice clean 750f with a little patina for myself. Don't plan on selling it.

Next up for me is the next bearings. They were straight nasty. Planning on doing a tapered conversion. Took apart everything for cleaning. Once that is done I'm on the the front caliper and controls.

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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: CB750F Rider
« Reply #5 on: August 09, 2018, 07:51:49 pm »
...following...I like the F's.  They have lots of individual quirks and unique parts, some of which can be challenging to find.  They are also great riding bikes when all sorted.
If it works good, it looks good...

Offline Sdsbassist

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Re: CB750F Rider
« Reply #6 on: August 09, 2018, 07:53:01 pm »
...following...I like the F's.  They have lots of individual quirks and unique parts, some of which can be challenging to find.  They are also great riding bikes when all sorted.
Thanks sean!

Ya the parts have been difficult at best. Especially that rear brake. I think most everything else is there so I'm just trying to go slow and steady

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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: CB750F Rider
« Reply #7 on: August 09, 2018, 08:11:56 pm »
Just helping out a brother...754 has a couple rear masters in the for sale section right now.  If your's is seized, you might want to grab a spare.
If it works good, it looks good...

Offline Bankerdanny

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Re: CB750F Rider
« Reply #8 on: August 10, 2018, 09:29:03 am »
The 75-77 GL1000 rear master and rotor are a direct swap to the SOHC F bikes.

The F0/F1 uses a unique rear caliper that I don't think Honda used on any other bike, it's actually pretty sophisticated for 1975, a fixed caliper with twin opposed pistons. The F2/3 uses the same rear caliper as the Goldwing, a single piston sliding caliper.

I ended up putting an F2 caliper and bracket on my F1 (you have to get the caliper bracket too, the later caliper won't work with the early bracket), which meant a new hose because the 2/3 hose is longer than the 0/1. Other than the hose length it's a bolt on swap and you can re-use the existing caliper stay.

Here are a couple pic's of mine, first as I got it, and as it is now. I had to replace a rusty tank and muffler and cracked side covers
« Last Edit: August 10, 2018, 09:32:03 am by Bankerdanny »
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F, '74 CB550k project bike, '77 CB550F basket case engine donor. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki 80 (K11 probably, it's been 30 years), '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline Sdsbassist

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Re: CB750F Rider
« Reply #9 on: August 10, 2018, 09:30:28 am »
Good to know! Bought a few part from the Benton boys and am set on the calipers and speedo.

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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: CB750F Rider
« Reply #10 on: August 10, 2018, 09:37:34 am »
Speedo!

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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 Stev-o

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Re: CB750F Rider
« Reply #11 on: August 10, 2018, 03:42:07 pm »
Good progress Bass man!
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Offline Sdsbassist

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Re: CB750F Rider
« Reply #12 on: August 10, 2018, 03:45:17 pm »
Appreciate it. I'm getting my new caliper and trees cleaned up. A little touch up paint here and there and I should be ready to put the front end together and tackle some wiring.

Once that's all back together the next paycheck will get me a front tire and hopefully a finished front end.

Then I'm hoping to do carbs and electonics, with the rear end into September.

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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: CB750F Rider
« Reply #13 on: August 10, 2018, 06:31:17 pm »
Cleaning up some of the front end.

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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: CB750F Rider
« Reply #14 on: August 10, 2018, 07:17:05 pm »
That's weird that you have a k1-k6 caliper on there...should have the smooth caliper like the k7-k8s.  They look like this...
DSCN1042 by Sean Barney, on Flickr
No reason why what you have shouldn't work as far as I know.
If it works good, it looks good...

Offline Sdsbassist

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Re: CB750F Rider
« Reply #15 on: August 10, 2018, 07:21:09 pm »
Well, it isn't what I have on there, it's what I bought from benton. Guess we will see!

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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 Accolay

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Re: CB750F Rider
« Reply #16 on: August 10, 2018, 08:15:46 pm »
Glad you're enjoying these and that they went to a good home! I wouldn't have had the time so they probably would have just rotted away in my shed.

I haven't found any other parts to the 550s around the garage, but still yours if I do.

Keep up the progress :)
1977 CB550F

Offline Sdsbassist

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Re: CB750F Rider
« Reply #17 on: August 10, 2018, 08:20:35 pm »
Glad you're enjoying these and that they went to a good home! I wouldn't have had the time so they probably would have just rotted away in my shed.

I haven't found any other parts to the 550s around the garage, but still yours if I do.

Keep up the progress :)
For the record...bought em from this guy!!!

The 550s are tucked away in a relatives garage. Hoping to get this one done before new years and bring that mess to the garage. I ordered some parts from the local Honda dealer and this 75 F has generated a lot of interest. The owner loves anything 70s supersport.

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« Last Edit: August 10, 2018, 08:22:33 pm by Sdsbassist »
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 Accolay

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Re: CB750F Rider
« Reply #18 on: August 10, 2018, 08:44:27 pm »
I ordered some parts from the local Honda dealer and this 75 F has generated a lot of interest. The owner loves anything 70s supersport.

Who doesn't, right? Still not sure how you talked me out of her :)
1977 CB550F

Offline Sdsbassist

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Re: CB750F Rider
« Reply #19 on: August 10, 2018, 08:45:27 pm »
Hundos and a guy crazy enough to drove 195 miles round trip to be to work by 8!!!

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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 SOHC4 Cafe Racer Fan

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Re: CB750F Rider
« Reply #20 on: August 11, 2018, 09:16:21 am »
Make sure you caliper paint is durable and coated.  A drop of DOT fluid will otherwise eat it off.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2014 MV Agusta Brutale Dragster 800
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold

Offline CarbonK

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Re: CB750F Rider
« Reply #21 on: August 11, 2018, 02:46:37 pm »
Hey Sdsbassist, what kind of paint are you using on them parts?

Offline Sdsbassist

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Re: CB750F Rider
« Reply #22 on: August 11, 2018, 02:47:17 pm »
It's a rattle can with a clearcoat. Have any suggeations?

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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 754

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Re: CB750F Rider
« Reply #23 on: August 11, 2018, 04:27:04 pm »
That's weird that you have a k1-k6 caliper on there...should have the smooth caliper like the k7-k8s.  They look like this...
DSCN1042 by Sean Barney, on Flickr
No reason why what you have shouldn't work as far as I know.
This is what I thought it should have. The only bike before 77 that used smooth caliper were the 75 and 76 F and the Automatics. The good part they had hard chromed tubes and probably the longer lower legs.
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My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Sdsbassist

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Re: CB750F Rider
« Reply #24 on: August 11, 2018, 04:42:17 pm »
Good to know. I think I'll run if for now....

I did find some black caliper paint and threw that on!

Thanks all.

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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"

 

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