Author Topic: 1976 CB750SS Street Tracker Build  (Read 19821 times)

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Offline SOHC4 Cafe Racer Fan

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Re: 1976 CB750SS Street Tracker Build
« Reply #50 on: March 26, 2014, 08:34:40 PM »
I like it regardless of classification. 
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 calj737

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Re: 1976 CB750SS Street Tracker Build
« Reply #51 on: March 27, 2014, 04:58:35 AM »
"a rose by any other name..."

You have every reason to be proud of it and it's moot as to the style name, it's just plain cool.
'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

Offline mwasson

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GPS Speedometer
« Reply #52 on: March 27, 2014, 09:44:57 AM »
Decided to use the Dakota Digital GPS for the speedometer. This will work great with the Motogadget Classic Tach/Speedo.

A GPS Speed sensor which can be considered something more. GPS technology offers many benefits in today’s world: accurate speed information, precise location tracking, repeatable information, and so much more. The GPS-50-1 was completely Designed and Built in the USA, specifically made for the custom automotive market and the unique challenges which exist. Highly advanced electronic and software design allow the GPS-50-1 to work unlike anything else, with accelerometers and predictive software to compensate for times when GPS inherently struggles: Overpasses, mountains, tunnels, heavy tree cover, large buildings, passing large vehicles, etc. Unique electronic architecture provides for negligible current usage when off, yet lightning fast start-up and signal acquisition. Updating the speed information 10 times per second provides tremendous accuracy, while the integrated omni-directional antenna provides for a wide range of installation flexibility and simplicity of a single, smart, unit. In fact, the GPS-50-1 does such a tremendous job of rendering the correct speed information, it can be used to feed an aftermarket cruise control system; while not an easy task for a GPS speed sensor, the GPS-50-1 was intelligently created to handle this from the beginning.

When used in conjunction with a Dakota Digital VFD3 or VHX Instrument system, a single data connection cable adds accurate Speed information, Compass positioning, Altimeter data, Automatic Clock syncing, all with fully automatic calibration! No DIP switches, No Guessing, No Innacuracies, period.

The GPS-50-1 is also fully compatible with other electronic speedometers on the market. Offering a user selectable output of 4k, 8k, 16k PPM signals and a selectable signal type of a Sine Wave or Square Wave, the flexibility is endless.
« Last Edit: March 27, 2014, 09:47:48 AM by mwasson »

Offline mwasson

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1976 CB750SS Street Tracker Build- Progress
« Reply #53 on: June 23, 2014, 11:08:41 AM »
Making some progress again on the build. Engine is going together and gas tank is taking final form.

Offline BPellerine

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Re: 1976 CB750SS Street Tracker Build
« Reply #54 on: June 23, 2014, 06:36:04 PM »
that bike will be a beauty! bill
1978 CB 750K ard and webers
another anfob

Offline mwasson

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More Pictures
« Reply #55 on: July 14, 2014, 12:47:08 AM »
Some more pictures of the engine assembly and gas tank construction. We are getting closer....ported head is now back from the shop with honed guides and a new valve job. Compression is exactly 9.99 to 1. Waiting on a custom billet top triple tree to be made.

Offline calj737

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Re: 1976 CB750SS Street Tracker Build
« Reply #56 on: July 14, 2014, 04:59:23 AM »
Mind a question? That tank looks peculiar. I can not see how gas will fill both sides of the tank or get from one side to the other with the depth of that tunnel. Or are you  be planning a second petcock?

If you're only planning on a single sided tank, then that's not much gas and I trust you blocked off the other side, as any liquid that finds it's way into there will create a significant amount of rust over time.

Perhaps I can not see clearly from the single inverted picture what the real solution is?
'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

Offline mwasson

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Re: 1976 CB750SS Street Tracker Build
« Reply #57 on: July 14, 2014, 11:38:53 PM »
I just talked to my dad and the tank fabricator, Tom. They are/were aware of the situation and ensured me that the fuel will spill over into the other side where the petcock is. As far as rust, they are putting a coating on the inside to ensure there is no rust in the future.

I have attached more pics they just sent last night.

Offline ziokahn

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Re: 1976 CB750SS Street Tracker Build
« Reply #58 on: July 15, 2014, 01:41:04 AM »
Subscribed and going along for the ride. Looking trick.

Offline SOHC4 Cafe Racer Fan

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Re: 1976 CB750SS Street Tracker Build
« Reply #59 on: July 15, 2014, 09:06:42 PM »
Dig that headlight.
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 mwasson

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Re: 1976 CB750SS Street Tracker Build
« Reply #60 on: September 04, 2014, 05:30:25 AM »
Headlight mounted, larger oil tank inlet/outlet bungs welded on, intake manifold welded, and front number plate template completed. Working on the side number plate design. Almost ready to test fire the engine on an engine stand.

Offline SOHC4 Cafe Racer Fan

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Re: 1976 CB750SS Street Tracker Build
« Reply #61 on: September 04, 2014, 08:53:49 AM »
MWasson,

You dad and Tom are steamrolling.  The bike is looking good.

Any preview as to the seat? 

Cycle X still doesn't have that newer PMFR rear disc brake on their site.  From looking at the PMFR site, it looks like your rear caliper is sourced from Wilwood.  The set up looks clean and should be a significant improvement over the stocker. 

What's the story on the front brake?  I see that you retained the stock hub and brake rotor and adapted a caliper to the radial mount on the left side.  I couldn't make out the caliper.  I figured it must have some improved stopping power, since you are only running a single without a drilled rotor.
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 mwasson

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Re: 1976 CB750SS Street Tracker Build
« Reply #62 on: August 14, 2015, 06:24:02 PM »
Waiting on the tank and fender to come back from the paint shop- Old School orange flames on gloss black outlined in silver.

Offline mwasson

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Re: 1976 CB750SS Street Tracker Build
« Reply #63 on: August 14, 2015, 06:54:45 PM »
MWasson,

You dad and Tom are steamrolling.  The bike is looking good.

Any preview as to the seat? 

Cycle X still doesn't have that newer PMFR rear disc brake on their site.  From looking at the PMFR site, it looks like your rear caliper is sourced from Wilwood.  The set up looks clean and should be a significant improvement over the stocker. 

What's the story on the front brake?  I see that you retained the stock hub and brake rotor and adapted a caliper to the radial mount on the left side.  I couldn't make out the caliper.  I figured it must have some improved stopping power, since you are only running a single without a drilled rotor.

Running the stock front caliper with a drilled rotor. The seat is getting finished this week. I will post pics as they come in.

Offline SOHC4 Cafe Racer Fan

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Re: 1976 CB750SS Street Tracker Build
« Reply #64 on: August 14, 2015, 07:44:12 PM »
Back from the dead!!  Glad to see this project back in full swing!!
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 brandEn

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Re: 1976 CB750SS Street Tracker Build
« Reply #65 on: August 15, 2015, 02:38:35 PM »
What a cool looking project. Subscribed!

Offline mwasson

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Re: 1976 CB750SS Street Tracker Build
« Reply #66 on: August 18, 2015, 10:38:23 AM »
Getting closer day by day....

Offline SOHC4 Cafe Racer Fan

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Re: 1976 CB750SS Street Tracker Build
« Reply #67 on: August 18, 2015, 11:56:38 AM »
It's coming along nicely.

Now I remember where I've seen that headlight. 

http://themotolady.com/tagged/monster-project/
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 slikwilli420

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Re: 1976 CB750SS Street Tracker Build
« Reply #68 on: August 18, 2015, 12:17:42 PM »
Lots of really cool stuff going on here. Some of my favorite touches are the Webers and the cast mounts for the oil tank. This looks like it has all the right parts. Looking forward to more progress.
All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
AHRMA Superbike Heavyweight Racer: http://forums.sohc4.net/index.php/topic,173120.0.html
'76F CB750 Patina Redemption: http://forums.sohc4.net/index.php/topic,174871.0.html

Offline colvinry

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Re: 1976 CB750SS Street Tracker Build
« Reply #69 on: August 18, 2015, 01:23:38 PM »
real nice. What forks are those? They look to be a bit longer than most USD forks. Were you able to keep the stock geometry?

Offline mwasson

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Re: 1976 CB750SS Street Tracker Build
« Reply #70 on: August 18, 2015, 07:38:52 PM »
2004 CBRR1000 USD forks. May have a bit more rake than stock, but that is ok. It sits level with the rear shocks mounted and me on it.

Offline SOHC4 Cafe Racer Fan

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Re: 1976 CB750SS Street Tracker Build
« Reply #71 on: August 18, 2015, 09:27:42 PM »
This bike has such a great level of fabrication.  I notice something new each time I "catch up" with your updates.
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 mwasson

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Re: 1976 CB750SS Street Tracker Build
« Reply #72 on: August 18, 2015, 11:17:59 PM »
Yes, there is even more fabrication than meets the eye. If you know how these old Japanese frames and swingarms were made (two pieces of sheet metal formed and butted together with the edges sticking out and welded), you can appreciate the work that has been done.

We could have went out and bought a custom swing arm, but they chose to fix the existing one and make it a custom piece.

The fuel tank has an unbelievable amount of work done to transform it from a Fat Bob tank to a one off masterpiece. The front Harley fender on the back has been reworked and reformed and is nothing like the original design.

The intake manifold is another one off piece of work that has been flow tested and all four inlets flow almost identically.

Almost nothing on this bike is stock, not even the rear master cylinder. The top triple clamp is something that just came out and we got one of the first ones. Even the CycleX header has been rewelded and ceramic coated. The GPR baffle was designed in Italy specifically to fit this bike.

I got ripped off on the headwork, as we had to spend a lot of time and money re-porting the head, reinstalling new guides, and another valve job after receiving a "race ready" product. I won't mention who did this, but he knows who he is.

It has take a lot of time a LOT of money to get this far; far more than I imagined. But on September 28th, it has to roll out of the door and make a trip from Oregon to the Mexico Border on Highway 1...

And to think it all started from this old piece of junk in the shed....




« Last Edit: August 18, 2015, 11:23:32 PM by mwasson »

Offline 70CB750

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Re: 1976 CB750SS Street Tracker Build
« Reply #73 on: August 19, 2015, 04:37:10 AM »
Do you need to limit the fork travel because of the fuel tank?
Prokop
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I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
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Offline mwasson

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Re: 1976 CB750SS Street Tracker Build
« Reply #74 on: August 19, 2015, 05:05:57 AM »
I do not understand the question. No reason to limit the fork travel due to the tank. Do you mean the rear shock travel? If so, no, we fully compressed it and it does not touch the oil tank or fender.