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Author Topic: '78 CB750K cafe project build  (Read 12785 times)

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Offline SOHC4 Cafe Racer Fan

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Re: '78 CB750K cafe project build
« Reply #25 on: October 25, 2012, 05:41:50 PM »
That makes sense.
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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 afkrejci90

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Re: '78 CB750K cafe project build
« Reply #26 on: February 05, 2013, 01:36:03 PM »
Getting ready to send the head out for work, but as you can imagine there is a good layer of carbon built up on it.  I've put it through a parts washer many times as well as spraying it down with carb cleaner, but it hasn't come out clean.  What could I use to really get this clean? 
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'78 CB750K http://forums.sohc4.net/index.php?topic=105327.0
'80 CB750C - Sold
'06 CBR600RR

Offline Blitzburgh207

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Re: '78 CB750K cafe project build
« Reply #27 on: February 05, 2013, 02:02:25 PM »
Soda blast or bead blast it?
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1978 CB750 K8

Offline afkrejci90

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Re: '78 CB750K cafe project build
« Reply #28 on: April 27, 2013, 03:38:13 PM »
Just picked this up the other day.  Now I can clean my head off and do just about any part on the bike except the frame.  Well worth it.
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'78 CB750K http://forums.sohc4.net/index.php?topic=105327.0
'80 CB750C - Sold
'06 CBR600RR

Offline deafcaferacer

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Re: '78 CB750K cafe project build
« Reply #29 on: April 28, 2013, 07:55:38 AM »
Wow.. I don't suppose that's available at any local home depot for a reasonable price??  ;D
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'73 CB750k engine, hubs, and a '76 tank, on 'a 78 frame. Go figure.

Offline afkrejci90

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Re: '78 CB750K cafe project build
« Reply #30 on: April 28, 2013, 08:43:19 PM »
Quote from: deafcaferacer on April 28, 2013, 07:55:38 AM
Wow.. I don't suppose that's available at any local home depot for a reasonable price??  ;D
Harbor Freight for about ~$200 everything included except the media.
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'78 CB750K http://forums.sohc4.net/index.php?topic=105327.0
'80 CB750C - Sold
'06 CBR600RR

Offline afkrejci90

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Re: '78 CB750K cafe project build
« Reply #31 on: June 23, 2014, 09:14:51 PM »
This project went on the back burner for quite awhile.  Finally got the money saved up for Mike Riecks awesome head work after starting school again.  Now that the most expensive part of this build is complete I've got the motivation again to get this thing finished.  Working on cc'ing the chambers for custom pistons.
Here is a few shots of the head, quite a shame to hide this in the engine.  ;D  Using the Kibblewhite 5mm conversion with oversize intakes.


« Last Edit: June 23, 2014, 09:16:35 PM by afkrejci90 »
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'78 CB750K http://forums.sohc4.net/index.php?topic=105327.0
'80 CB750C - Sold
'06 CBR600RR

Offline afkrejci90

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Re: '78 CB750K cafe project build
« Reply #32 on: August 12, 2014, 04:43:34 PM »
Finished installing the Kibblewhite 5mm conversion kit.  Working on the chambers tonight to get them CC'd and molds made so I can get my custom pistons.




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'78 CB750K http://forums.sohc4.net/index.php?topic=105327.0
'80 CB750C - Sold
'06 CBR600RR

Offline afkrejci90

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Re: '78 CB750K cafe project build
« Reply #33 on: June 04, 2015, 09:01:49 PM »
Since my long hiatus from this project, I now have most of my big money items and am ready to get this thing finished.  I sold off my original set of 1000cc JE pistons to go with a high CR custom set from Dynoman.  Made the molds and got them sent off to Dynoman.  The first mold was my bad attempt and mold making, didn't come out so well.  Waiting for the pistons to come in some time next week.  Once those are in, the cylinders, top case, and transmission are off to APE.  Also pulled the trigger on a set of weber 40 DCOE carbs.  Not sure on how to get everything connected together yet but some custom machining work is in order.





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'78 CB750K http://forums.sohc4.net/index.php?topic=105327.0
'80 CB750C - Sold
'06 CBR600RR
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