Author Topic: CB550 Cafe Interceptor - Gentleman's Roadster  (Read 346918 times)

0 Members and 4 Guests are viewing this topic.

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,733
  • SOHC/4 Member #1235
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #525 on: April 11, 2015, 06:07:49 PM »
They turned out excellent, Jim.  That was smart of you to retain spares.
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 bwaller

  • Really Old Timer ...
  • *******
  • Posts: 7,485
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #526 on: April 12, 2015, 04:32:59 AM »
 Nice work Jimmy. It's surprising how bright the little buggers are. I'm always harping at my modern bike friends for small little lighting that's hard to see in the daylight. (from the rear especially)

Offline Syscrush

  • Expert
  • ****
  • Posts: 1,419
  • Sold. :(
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #527 on: April 12, 2015, 07:34:08 PM »
I'm glad to go through this thread after being away for a while and see more updates with your usual attention to detail and quality.  Always inspirational.

And speaking of inspiration:

That is so f'n sweet.  Love it.  I am 100% ripping off this technique - I'm sending your pics to my machinist this week.
OK, I don't want to disrupt your thread, but look at what I brought home yesterday.  I don't think it turned out as nice as yours, but it's good for now:

« Last Edit: April 12, 2015, 07:35:55 PM by Syscrush »
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline FunJimmy

  • Who you calling
  • Old Timer
  • ******
  • Posts: 3,802
  • Vancouver
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #528 on: April 12, 2015, 08:19:10 PM »
That is so f'n sweet.  Love it.  I am 100% ripping off this technique - I'm sending your pics to my machinist this week.


A man of his word. I love that! Your machinist did a great job. I really like what he did with the dog bone. Looks awesome against the polished swinger.


« Last Edit: April 12, 2015, 08:22:13 PM by FunJimmy »
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

Offline FunJimmy

  • Who you calling
  • Old Timer
  • ******
  • Posts: 3,802
  • Vancouver
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #529 on: April 12, 2015, 08:27:50 PM »
I'm glad to go through this thread after being away for a while and see more updates with your usual attention to detail and quality.  Always inspirational.

Thanks Syscrush but I'm starting to think I've milked this build for WAY too long. I'm a tinkering kind of guy and love kicking about the shop but at some point you have to admit that the glory days have long passed. Time to think about starting a new build.
« Last Edit: January 02, 2019, 05:23:37 PM by FunJimmy »
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,733
  • SOHC/4 Member #1235
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #530 on: April 12, 2015, 09:46:59 PM »
The Interceptor is Hall of Fame material.  I remember when you started your build.  It blew my mind.  Back then, I was barely contemplating an 836 kit and rebuilding the forks.  Now, I'm a restomod-aholic.

Do you have an idea for the new project???
« Last Edit: April 12, 2015, 09:48:32 PM by CB750 Cafe Racer Fan »
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 Syscrush

  • Expert
  • ****
  • Posts: 1,419
  • Sold. :(
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #531 on: April 13, 2015, 08:45:56 AM »
A man of his word. I love that! Your machinist did a great job. I really like what he did with the dog bone. Looks awesome against the polished swinger.
I also really like the rear mount and the way that the swinger, chain, sprocket, and guard look together.  The front mount looks like garbage, though.  It'll be replaced with a dogbone type at some point, but not this year (and probably not next).  For now, I can snap pics from strategic angles where the footrest supports obscure the ugly part. ;)
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline akabek

  • Hot Shot
  • ***
  • Posts: 303
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #532 on: April 13, 2015, 09:59:11 AM »
Hey Jimmy,unless your interests have changed there is no need to stop adding to this thread.  The whole point is to share ideas and information.  For the most part your build is done but changing components or adding custom parts makes it all worth while.
« Last Edit: April 14, 2015, 07:21:14 AM by akabek »

Offline Syscrush

  • Expert
  • ****
  • Posts: 1,419
  • Sold. :(
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #533 on: April 14, 2015, 06:09:33 AM »
Thanks Syscrush but I'm starting to think I've milked this build for WAY too long. I'm a tinkering kind of guy and love kicking about the shop but at some point you have to admit that the glory days have long passed. Time to think about starting a new build.
I'm excited to see what you come up with next!

As for this bike, I have watched a lot of builds over the years where it starts out interesting, then hits a pinnacle of awesome, then gets ruined by someone who just doesn't know when to quit.  This is not one of those builds. :)
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline Trad

  • Expert
  • ****
  • Posts: 964
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #534 on: April 14, 2015, 06:52:24 AM »
This thread is Amazing Jimmy. Keep it going man!
74 CB550 Build: NOS-GUTTED-OEMplus-HOLDTRUE
http://forums.sohc4.net/index.php/topic,130575.0.html

Offline FunJimmy

  • Who you calling
  • Old Timer
  • ******
  • Posts: 3,802
  • Vancouver
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #535 on: April 14, 2015, 05:21:25 PM »
Thanks for your support and encouragement Gents. I'm glad you're not getting bored to tears after all these years. Sometimes it just seems like incremental details for the sake of tinkering but I still get a lot of satisfaction from even the smallest change. Don't worry though, my interests haven't changed. The Interceptor has been a great journey and I've learned a lot along the way. Spring is knocking at the door so I'll be out enjoying another season on the bike so keep an eye open for a ride video or two.

After next winter I'll call it complete! There’s just one more item to tackle. Arguably the most significant to date.

Stick around.
Jimmy
« Last Edit: January 02, 2019, 05:27:49 PM by FunJimmy »
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

Offline Retro Rocket

  • Eggs are hard due too a
  • Really Old Timer ...
  • *******
  • Posts: 19,279
  • ROCK & ROLL
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #536 on: April 14, 2015, 05:35:17 PM »


After next winter I'll call it complete! There’s just one more item to tackle. Arguably the most significant to date.

Stick around.
Jimmy

Your getting a face lift.... ;D :o ;)
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline fastbroshi

  • Puppet
  • Old Timer
  • ******
  • Posts: 2,645
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #537 on: April 14, 2015, 05:39:44 PM »
650 motor transplant?  Nah.
Just call me Timmaaaaay!!!

Offline akabek

  • Hot Shot
  • ***
  • Posts: 303
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #538 on: April 14, 2015, 07:04:20 PM »
Carb jetting???

Offline calj737

  • Really Old Timer ...
  • *******
  • Posts: 21,070
  • I refuse...
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #539 on: April 14, 2015, 08:23:58 PM »
maybe he's putting a new roof on the Lab?
'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 754

  • Really Old Timer ...
  • *******
  • Posts: 29,058
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #540 on: April 14, 2015, 08:42:24 PM »
Better come and visit my parts jails.. Got a nice gold USD fork, Hawk swingarm single sided, Astrallites......... To tempt a guy like you..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

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 akabek

  • Hot Shot
  • ***
  • Posts: 303
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #541 on: April 14, 2015, 08:43:24 PM »
Jimmy, are you really considering putting passenger pegs on?

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,733
  • SOHC/4 Member #1235
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #542 on: April 14, 2015, 08:52:21 PM »
Titanium exhaust? Carbon fiber goodies?  Do tell.
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 FunJimmy

  • Who you calling
  • Old Timer
  • ******
  • Posts: 3,802
  • Vancouver
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #543 on: April 14, 2015, 09:01:33 PM »
maybe he's putting a new roof on the Lab?

Did!
« Last Edit: January 02, 2019, 05:35:42 PM by FunJimmy »
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

Offline Syscrush

  • Expert
  • ****
  • Posts: 1,419
  • Sold. :(
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #544 on: April 15, 2015, 04:47:28 AM »
After next winter I'll call it complete! There’s just one more item to tackle. Arguably the most significant to date.
You're finally gonna grind off those goddamned left caliper mounting bosses?  ;D
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline FunJimmy

  • Who you calling
  • Old Timer
  • ******
  • Posts: 3,802
  • Vancouver
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #545 on: April 18, 2015, 07:22:04 PM »
C5 Multi-Spark Ignition first ride impression.
This ignition is one of the best upgrades I've done. Here's why. I've been screwing around with jetting and getting mixed and inconsistent results since installing CR26 carbs. It's been a long and frustrating (costly too) process that had me wondering if these carbs would ever be more than a finicky WOT setup but they are. Prior to the C5 ignition I was running a Pamco electronic ignition, Dyna 5ohm coils and Accel copper core wires with NGK caps. Thought it was fine till I changed. With the C5 ignition the bike idles and cruises around town like never before. Throttle response is crisp and clean with strong acceleration all the way to redline. Very happy.  :)
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

Offline calj737

  • Really Old Timer ...
  • *******
  • Posts: 21,070
  • I refuse...
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #546 on: April 18, 2015, 07:39:56 PM »
Couple of other questions about the C5:
- how was install and setup?
- happen to notice any change at voltage at lower RPMs?
- do you have any historical info on mileage to compare against? (Maybe you've never cared, but it would be interesting now that your Cr-26s are behaving)
'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 FunJimmy

  • Who you calling
  • Old Timer
  • ******
  • Posts: 3,802
  • Vancouver
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #547 on: April 18, 2015, 07:59:59 PM »
The install was pretty straight forward Cal.
Toughest part was locating TDC to static time the optical trigger disc. I had to get my degree wheel and piston stop out because the C5 ignition replaces the stock advance unit and there goes the timing marks. I do have pretty good fuel consumption data from last season. Will compare as soon as I get a few rides with this setup to collect sufficient data. Interesting I had to run 65 pilot jets to get decent idle with the Pamco ignition and as soon as I fired it up with the C5 it was puffing black on throttle blips. Had to open up the air screw a full turn until I could change the pilots to 60. Haven't collected voltage data yet either but I'm running all LED's and nothing else so I'm sure I'll be fine.
« Last Edit: April 18, 2015, 08:01:30 PM by FunJimmy »
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

Offline akabek

  • Hot Shot
  • ***
  • Posts: 303
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #548 on: April 18, 2015, 08:02:40 PM »
Good to hear Jimmy.  What is your jetting now?

Offline FunJimmy

  • Who you calling
  • Old Timer
  • ******
  • Posts: 3,802
  • Vancouver
Re: CB550 Cafe Interceptor - Gentleman's Roadster
« Reply #549 on: April 18, 2015, 09:50:02 PM »
Good to hear Jimmy.  What is your jetting now?

Currently at:

Pilot    60
Idle Screw  1 5/8 turn
Needle  YY7
Clip      #5
Main    105
Air     220

Gonna try 102 Mains + YY8 needles next
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0