Author Topic: '78 CB750K Project #1 - Cafe-like Racer-ish Bike  (Read 38164 times)

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Offline Stoli

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Re: '78 CB750K Cafe-like Racer-ish Project #1
« Reply #100 on: July 25, 2013, 10:26:09 PM »

Here are a few pics of my Rube Goldberg can hanger. Surprisingly strong and effective. Basically a small piece of steel bent into a L shape, attached to the clamp on one end and the center stand bracket on the other. Technically you could still keep the center stand on the bike, but I don't. I do slip it on when I need to do maintenance though  - takes about 15 seconds. In addition to the clamp and L bracket, the only thing needed is a bolt that fits through the center stands bracket with some nuts and washers.






My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline flybox1

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Re: '78 CB750K Cafe-like Racer-ish Project #1
« Reply #101 on: July 26, 2013, 06:52:28 AM »
Nice clamp bracket Stoli.
Looks like you and your kid are having lots of fun.  8)
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
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"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline onetruepunk87

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Re: '78 CB750K Cafe-like Racer-ish Project #1
« Reply #102 on: July 26, 2013, 07:11:51 AM »
Thanks for taking the time to take pictures and put them up! I think I might have to put some money aside for that muffler.

Offline Stoli

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Re: '78 CB750K Cafe-like Racer-ish Project #1
« Reply #103 on: July 26, 2013, 08:50:12 AM »

I've seen it at DCC and CycleX but it is cheaper if you go directly to http://www.coneeng.com

Their web site isn't the best and they don't have an on-line ordering capability but I just sent them an email with the parts I wanted and they got right back to me with an invoice for the order. I phoned in a credit card to pay for it and it shipped the same day. Excellent product and very reasonably priced in my opinion. Here is the page with the different options:

http://coneeng.com/pdf/motorcycle/MC%20finsihed%20Mufflers%20PDF.pdf



Thanks Fly. Fortunately you can't really see it unless you stoop down and look hard.  ;)  I'll paint the clamp to match the pipe when I get a chance. I'm planning on getting the quiet cone like you have on my next project.
My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline Stoli

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #104 on: April 18, 2014, 11:51:15 AM »
Took the valve cover off yesterday to address the oil that started weeping out of the top end at the end of last year. I think it was the cam tower stud over the #1 cylinder. Anyways, I pulled all four studs and sealed them this time (wish I had seen that footnote the first time around). Also sealed the pucks and re-torqued the cylinder studs while I was in there. Now I know why guys do the frame mod so they can work on the engine without removing it from the frame. Even if you have a good system for engine removal, it is still a PITA disconnecting everything - especially the oil tank and filter since I had left fresh oil in it when I stored it for the winter. Oh well, she's buttoned back up and we'll hope for the best.
« Last Edit: April 18, 2014, 11:54:43 AM by Stoli »
My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline Stoli

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #105 on: June 12, 2014, 05:12:06 AM »
Finally got around to drilling the front rotor

My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline Restoration Fan

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #106 on: October 07, 2014, 11:33:33 AM »
Finally got around to drilling the front rotor



Love the look of the entire bike.  I've seen the pre-drilled rotors before and I see where you drilled these.  What's the purpose of the holes in the rotors?  To save on weight?
« Last Edit: October 07, 2014, 05:17:31 PM by Restoration Fan »
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline Stoli

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #107 on: October 07, 2014, 12:01:27 PM »

I believe the original purpose was to save weight. Maybe cooling, but unless you're dragging a pad, these rotors don't get that hot. On this bike, and many others out there, it is purely decorative.
My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline Gizmo

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #108 on: October 08, 2014, 06:27:34 AM »
You sir, write one hell of a good bike-build thread! i haven't been able to stop reading about your projects. Kudos

Offline SF

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #109 on: October 09, 2014, 11:59:02 AM »
originally the holes were to give water a place to go under if it rained during a race. but I could be wrong.
92 wr250 sold
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73 cb350 twin
75 cb550f
75 cb550f
72 r5c
rgid springer bobber project

Offline SOHC4 Cafe Racer Fan

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #110 on: October 09, 2014, 02:39:50 PM »
It's my understanding that the primary reason for origination/invention of cross-drilling rotors was to reduce heat.  When the brake pad grabs the rotor, it creates friction, which creates heat.  If that heat can't escape, it leads to brake fade, which reduces the brakes' stopping power.  A secondary reason was to reduce gas build up between the brake pad and brake rotor.  The materials used in some older types of brake pads caused gas to build up between the rotors and pads.  That gas also limited stopping power.  A third reason was to displace water between the brake pad and rotor.  I believe that reducing weight was a beneficial by-product.
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 RandyBMC

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #111 on: May 20, 2015, 08:28:25 PM »
I love your bike.  Don't normally make posts just to say that, but you have done a ton of really nice work in several areas.  Inspirational.

Offline McBain

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #112 on: May 20, 2015, 11:12:59 PM »
Love the look of your bike mate, the rims came up really good? Are they the original rims powder coated or sprayed with 2 pac?

Offline Stoli

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #113 on: May 21, 2015, 03:58:27 PM »
Thanks mates. The rims are the original DIDs. Powder coated gloss black and re-laced with polished stainless steel spokes.
My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline Restoration Fan

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #114 on: May 21, 2015, 04:29:42 PM »
Stoli,
Did you ever finish your bike with the tablet for gauges?
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline Stoli

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #115 on: May 21, 2015, 06:51:27 PM »
That was "Project #2", which is now project #5. It keeps getting pushed to the back burner as other things come along.  I hope to make more headway on that next winter. I'm rebuilding a '77 Super Sport right now and a torn rotator cuff has set me back a few months. Now that your son's project is finished, what's next for you?
« Last Edit: May 21, 2015, 07:29:00 PM by Stoli »
My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline Restoration Fan

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #116 on: May 22, 2015, 02:02:32 AM »
That was "Project #2", which is now project #5. It keeps getting pushed to the back burner as other things come along.  I hope to make more headway on that next winter. I'm rebuilding a '77 Super Sport right now and a torn rotator cuff has set me back a few months. Now that your son's project is finished, what's next for you?
http://forums.sohc4.net/index.php/topic,147787.0.html

I'm building 2 bikes...500 and 550 cafe-styled bikes.  The 500 will be first and it'll eventually be sold to fund building the 550 as Logan's bike.  Right now, it's going back to a semi-stock state (will have modified handle bars and cafe seat off the bat) to get it running and functioning properly.  When that's done and he's gotten some seat time on the bike, we'll install the rear sets and let him get some experience riding that.  I figure that's the best way for him to make an intelligent decision about what he likes and dislikes so that we can design his bike with those mods in mind.

You have build threads for your other builds?  I've always enjoyed watching your work and would love to follow along.
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline martin_uk

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #117 on: May 22, 2015, 04:23:02 AM »
Great work, very impressed.
CB750F1, CB750K8,  Triumph Street Triple R, AJS 350, Triumph 3TA

Offline Stoli

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #118 on: May 22, 2015, 02:32:33 PM »

You have build threads for your other builds?  I've always enjoyed watching your work and would love to follow along.

I'll probably start another thread soon. It is shaping up to be a fairly vanilla build. He (my son) wanted 2 up so he could pick up girls so I'm going with one of Harisuluv's bench seats with rear hoop. Clean and simple will be the theme.

Thanks Martin.
My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline SOHC4 Cafe Racer Fan

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #119 on: May 22, 2015, 03:11:39 PM »
He (my son) wanted 2 up so he could pick up girls so I'm going with one of Harisuluv's bench seats with rear hoop.

Why many of us wanted motorcycles when we were that age!
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 Stoli

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #120 on: May 22, 2015, 03:27:28 PM »
Hey RestoFan - Are you familiar with Iron & Air? They are a digital magazine (iPad) with an option to purchase a print addition. They come out every other month or so. You seem like the type of guy who would like it, especially since your all in with the 2 wheeled machines now. Not your typical biker mag. Hard to describe. Well written. I've been getting them for about a year now and highly recommend it.  Iron&Air
My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline Restoration Fan

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #121 on: May 22, 2015, 05:37:50 PM »
Hey RestoFan - Are you familiar with Iron & Air? They are a digital magazine (iPad) with an option to purchase a print addition. They come out every other month or so. You seem like the type of guy who would like it, especially since your all in with the 2 wheeled machines now. Not your typical biker mag. Hard to describe. Well written. I've been getting them for about a year now and highly recommend it.  Iron&Air

Stoli,
That is pretty cool.  I just took out a year's subscription.  I like it!  Thank you.

Ron

Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline Stoli

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #122 on: May 22, 2015, 06:43:26 PM »
Hopefully you will enjoy the issues as much as I have. It's a perfect mix of motorcycle culture and life. Every once in a while they feature a builder who is on a different plain. For instance, Max Hazan (issue 9). I was blown away by the stuff this guys is building. Not the most practical bikes, but the marriage of art, engineering and craftsmanship is so impressive.
My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline SOHC4 Cafe Racer Fan

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #123 on: May 22, 2015, 08:17:45 PM »
Hopefully you will enjoy the issues as much as I have. It's a perfect mix of motorcycle culture and life. Every once in a while they feature a builder who is on a different plain. For instance, Max Hazan (issue 9). I was blown away by the stuff this guys is building. Not the most practical bikes, but the marriage of art, engineering and craftsmanship is so impressive.

You got it right about Max's bikes -- art and not so much practicality.  The metal-work was exquisite on his balloon tired, Harley engined, supercharged THING.




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

Online calj737

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Re: '78 CB750K Project #1 - Cafe-like Racer-ish Bike
« Reply #124 on: May 23, 2015, 04:43:36 AM »
Max needs a few days of practice welding to tighten up those beads  ;)

I have no problem whatsoever with a bike like that as opposed to some that represent a "show bike" as rideable. Man's stuff is obviously the intersection of engineering and design used to present his craftsmanship in the form of art. He makes no effort to present many of his bikes as "rideable" and his constantly changing platform, style and design is really quite cool. And from all the interviews I've read with the guy, seems quite modest and cool. Definitely someone not caught up in his own infamy.

Sorry for the thread jack, Stoli. Bikes coming along beautifully as all your projects do.
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis