Author Topic: CB750 K3F - AKA The Red  (Read 103848 times)

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Offline 70CB750

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Re: CB750 K3F
« Reply #225 on: March 28, 2014, 07:07:42 pm »
Mocking up oil tank, hoses and brake pedal.




Offline Stev-o

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Re: CB750 K3F
« Reply #226 on: March 29, 2014, 06:43:31 pm »
Engine looks great 70CB.  I'd like to do a black engine on one of my projects.
And finned side covers.....ooooh, yeah
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline 70CB750

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Re: CB750 K3F
« Reply #227 on: March 30, 2014, 12:55:46 pm »
Engine looks great 70CB.  I'd like to do a black engine on one of my projects.
And finned side covers.....ooooh, yeah

It's mixed blessing. With engine in raw  aluminum you don't have to worry about paint chipping.

But I think I will go red on tank and covers to compensate for the black everywhere. Patriot red maybe.

Sometimes I feel I could go building forever - like Henri the painter in Cannery road. He was building a boat, but he was afraid of the sea - so he kept rebuilding and rebuilding:)

Offline Stev-o

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Re: CB750 K3F
« Reply #228 on: March 30, 2014, 04:51:27 pm »
Honda Red would look good.  Yes, building can go on for a long time, especially if there's snow on the ground or you have another bike to ride.
I'm 2 months into a front end upgrade....no hurry. 
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline 70CB750

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Re: CB750 K3F
« Reply #229 on: March 31, 2014, 11:42:38 pm »
Making progress.

Offline 70CB750

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Re: CB750 K3F
« Reply #230 on: March 31, 2014, 11:46:36 pm »
But of course there is more urgent stuff to get done.  On top of  vineyard pruning and trellis repairs I have to deal with my jeep's transmission.

Offline iron_worker

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Re: CB750 K3F
« Reply #231 on: April 01, 2014, 11:05:04 am »
Well *there's* your problem. lol

IW

Offline rtbmrgl

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Re: CB750 K3F
« Reply #232 on: April 02, 2014, 08:34:26 pm »
But of course there is more urgent stuff to get done.  On top of  vineyard pruning and trellis repairs I have to deal with my jeep's transmission.
That looked like the gears on "three on the tree" trans in my '62 Chevy p/u I rebuilt abut 4 times after removing the 235 6cyld and installing a 327 c.i.
thanks, Mark
Roseville, Ca

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1973 CB500 back yard find 1243 orig mi,  http://forums.sohc4.net/index.php?topic=124285.0
1976 CB750 Restoring,        http://forums.sohc4.net/index.php?topic=132997

Offline 70CB750

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Re: CB750 K3F
« Reply #233 on: April 03, 2014, 03:50:56 am »
It is the 3rd on the cluster gear.  Looks like I will be able to replace it.

Offline 70CB750

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CB750 K3F
« Reply #234 on: April 08, 2014, 06:18:10 pm »
I found great SS clamps for carburetors.  They fit in the groove on the insulator and allow for more tightening than the original.



« Last Edit: April 08, 2014, 06:20:11 pm by 70CB750 »

Offline rtbmrgl

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Re: CB750 K3F
« Reply #235 on: April 08, 2014, 07:52:48 pm »
I found great SS clamps for carburetors.  They fit in the groove on the insulator and allow for more tightening than the original.


Looks like a clamp from a German vehicle. They work well
thanks, Mark
Roseville, Ca

Got Points!

1973 CB500 back yard find 1243 orig mi,  http://forums.sohc4.net/index.php?topic=124285.0
1976 CB750 Restoring,        http://forums.sohc4.net/index.php?topic=132997

Offline 70CB750

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Re: CB750 K3F
« Reply #236 on: April 09, 2014, 03:43:40 am »
Yeah, I like the design:

Precision Brand Smooth Band Metric Worm Gear Hose Clamp, 32mm - 50mm

http://www.amazon.com/gp/product/B0036R4UDC/ref=oh_details_o00_s00_i01?ie=UTF8&psc=1
« Last Edit: April 09, 2014, 03:53:52 am by 70CB750 »

Offline 70CB750

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Re: CB750 K3F
« Reply #237 on: April 28, 2014, 04:37:39 pm »
Making progress with parts coming by mail.




Offline SOHC4 Cafe Racer Fan

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Re: CB750 K3F
« Reply #238 on: April 28, 2014, 05:10:03 pm »
Making progress with parts coming by mail.





The dual horns remind me of Tsunami's build.
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)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.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 and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

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
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Stev-o

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Re: CB750 K3F
« Reply #239 on: April 28, 2014, 05:13:46 pm »
Looks good Prokop. What else does the engine need before start up?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline 70CB750

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Re: CB750 K3F
« Reply #240 on: April 29, 2014, 06:43:57 am »
Thanks, Steve.

Technically Pamco and exhaust, but I want to finish it all before starting up.

Offline edwardmorris

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Re: CB750 K3F
« Reply #241 on: April 29, 2014, 08:43:12 am »
Looking good Prokop. Not sure about your budget, but there is a sweet set of MotoGP Werks headers for a decent price on the for sale forum, might be worth checking out...

Offline 70CB750

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Re: CB750 K3F
« Reply #242 on: April 29, 2014, 10:08:53 am »
Thanks, I saw it but out of my league.

Offline 70CB750

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Re: CB750 K3F
« Reply #243 on: May 11, 2014, 03:37:08 am »
I am reusing sprockets. They are 530 and in good shape, but I got only plain noring DID chain to save money.

Offline Stev-o

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Re: CB750 K3F
« Reply #244 on: May 11, 2014, 02:18:10 pm »
Still need an exhaust? Bill B has one for $100
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline 70CB750

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Re: CB750 K3F
« Reply #245 on: May 11, 2014, 02:34:21 pm »
Still need an exhaust? Bill B has one for $100

I am not there yet. I would like to reuse the exhaust I have in my stash - and get decent quiet mufflers for it. 

I think she needs 4-2.

Offline 70CB750

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Re: CB750 K3F
« Reply #246 on: May 20, 2014, 08:02:59 am »
The tedious job of filling and sanding.

 

Offline Stev-o

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Re: CB750 K3F
« Reply #247 on: May 20, 2014, 04:27:10 pm »
Hows the inside?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline 70CB750

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Re: CB750 K3F
« Reply #248 on: May 21, 2014, 03:09:47 am »
The inside is not bad, I did electrolytic cleaning and it came out ok.

There was one pin hole on the bottom I had to solder up.  The biggest issue is the valve area,  it got bent a bit when i was removing really stuck petcock.  I am not sure if regular petcock ring will seal it.

Offline 70CB750

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Re: CB750 K3F
« Reply #249 on: June 17, 2014, 11:01:59 am »
Scored a rack  ;D

For $30 a NOS on ebay, pretty pleased.