Author Topic: 1977 CB750 Supersport 2-up Cafe  (Read 14343 times)

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Offline Finksies

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1977 CB750 Supersport 2-up Cafe
« on: July 27, 2012, 11:18:41 PM »
The way I got it. The previous owner tried to install an electronic ignition 4 years ago and never could get it to run right. After sorting out the ignition, cleaned the carbs about 4 times and she finally ran decent. I purchased the bike for $450 bucks and have less than $1500 into it as of right now. Next start modifiting it to look cool.




Bent up a hoop for the rear of the bike. I will be building a two up seat to haul my woman around.




Had a bunch of parts powdered gloss black, wheels, lower legs, chain guard, and headlight besil. Taking off the bearing seals on these wheels was a nightmare!

List of parts.
-Led blinkers
-For gators
-Headlight ears
-Firestone "Coker" Tires
-New mirrors
-Wrapped headers
-Clip-ons
-Dirtbike front master
-Battery
-Plugs











Should have it in a roller by the end of the weekend. Will be similar to my current bike, 1975 CB500t.

« Last Edit: July 27, 2012, 11:40:07 PM by Finksies »

Offline brandEn

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #1 on: July 27, 2012, 11:58:21 PM »
solid first post! Nice F project. Subscribed.

Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #2 on: July 28, 2012, 02:08:18 PM »
Made some progress today. Got tubes in the tires and up to pressure. Mounted the swingarm and rear brake assembly. Mounted the exhaust and modified muffler.







Going to build the seat like this....

« Last Edit: July 28, 2012, 05:11:51 PM by Finksies »

Offline SOHC4 Cafe Racer Fan

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #3 on: July 28, 2012, 06:16:42 PM »
The new black wheels look great.  Looking forward to how the seat turns out.
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 Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #4 on: July 29, 2012, 01:11:03 PM »
Fabbed up a mount for the taillight/license plate bracket and wired it up. Just need some paint and its ready to go.



Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #5 on: July 31, 2012, 04:54:32 PM »
Got the hoop welded in today. Was a major pain in the ass. I think it came out ok though. Added a bend to make sure I have plenty of clearance from the tire, especially riding with two people.



« Last Edit: July 31, 2012, 05:04:10 PM by Finksies »

Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #6 on: August 03, 2012, 03:31:54 PM »
Got the front blinkers mounted. Just waiting on the clear to dry on the headlight bucket, and the front end will almost be complete.





I didn't like how the initial gussets came out, so I added a radius to make it more stock looking. I also filled any welds that might be seen and ground everything smooth. Tomorrow Ill be working on the seat pan and shaving the foam.







« Last Edit: August 03, 2012, 03:33:40 PM by Finksies »

Offline cabrala

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #7 on: August 03, 2012, 08:47:02 PM »
Fink, I've been trolling your build and feel the need to come out of the woodwork and give you props. I'm subscribed and catching updates at every post; really looking forward to seeing the end results. Keep up the good work and know you've got at least one follower ;) .

Also, where are you at in NH?

Cheers,
Alex
-Alex

'75 CB750F
'77 CB550K
'78 CB550
'93 FZR600

Need a better, newer points cover gasket? How about rubber washers for the headlight bucket? Click the link below:
http://forums.sohc4.net/index.php?topic=122308.0

Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #8 on: August 04, 2012, 07:37:38 PM »
I'm in Londonderry, NH. Thanks!

Got the seat pan built today. Its 1/4" Masonite reinforced with fiberglass. The seat pan is held to the frame with 8mm bolts. I welded both the front & the back together so they wont spin. Got the seat foam roughed in, still alot of grinding to go, but getting there.
















Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #9 on: August 07, 2012, 04:37:55 PM »
Got the Seat shaved to its final shape. Once i got it where i wanted it, I glued on 1/4" memory foam. Should be comfortable for me, not so much for the passenger:). Also mounted a biycycle speedo. It works on a magenet that spins. I mounted the magnet to one of the brake bolts. Drilled out the head, and JB welded it with some safety wire. Works like a charm...










Offline sirdaft1

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #10 on: August 09, 2012, 08:20:07 PM »
Can't wait to see that seat. Are you wrapping it in brown leather?

Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #11 on: August 10, 2012, 02:01:57 AM »
Can't wait to see that seat. Are you wrapping it in brown leather?

Brown leather with white stitching. I dropped the seat off at the upholster yesterday afternoon. Its going to be done today for when I get out of work. Ill have pictures tonight!

Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #12 on: August 10, 2012, 03:45:47 PM »
Couldn't be more happy with the seat. Got the rear blinkers mounted too today!











Rear Shot with blinkers.









Offline bjonesin

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #13 on: August 10, 2012, 05:15:13 PM »
God thats nice

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Offline Felix

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #14 on: August 11, 2012, 11:38:27 AM »
Holy F, that seat looks nice!
Honda CB500F '72 in progress

Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #15 on: August 12, 2012, 05:08:21 PM »
Thanks for the kind words gentlemen. Today I wired in all the blinkers and tail/brake light. Put on rethal kevlar grips, and Took the bike out today for its maiden voyage. This thing rips. Ill get some action shots up eventually. Still a bunch left to do but its rideable. Chanding the headlight to a CB550/500 which is in the mail. Gotta paint a bunch of stuff, but its been way to humid the past couple of days.

http://youtu.be/7amyhlod30E

Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #16 on: September 22, 2012, 02:27:04 AM »
Not too much visual progress on the bike but I have been riding it a lot.

-All new cables
-Installed #42 Pilot jets, and lowered the needle one clip
-New Petcock
-Removed my dry rotted reservoir and replaced with Tygon tubing
-Installed a replacement Halogen housing with replaceable bulb. Seems to vibrate, does anyone else have this issue?

*Need front right rotor and caliper if anyone has one.







« Last Edit: September 22, 2012, 02:30:04 AM by Finksies »

Offline Ndgrimm

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #17 on: November 07, 2012, 08:49:15 AM »
Finksies, I love what you did with the seat and the frame modifications I am in the process of fabricating a seat pan for my 76 cb750f and am running into the issue of clearance with the tire, so this thread has given me lots of ideas.

Where did you get the blinkers? Are they LEDs? I'm new to the area of electronics, however, I've heard that these older bikes don't handle LEDs very well without some electronics modification. Is that true? Love how minimal those blinkers are!

Thanks!
-Nate

Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #18 on: November 08, 2012, 04:25:10 PM »
Blinkers are an Ebay Special. Cheap money, I think about $20 bucks for all 4 (Shipped from China). They are led. This means you will need a new "Flasher relay". This can be purchased at your local automotive shop(About $14). Take out the old flasher relay, install the new. You now have Led turn signals that actually flash! Let me know if you have any other questions.


Tom

Offline Ndgrimm

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #19 on: November 12, 2012, 08:39:44 AM »
Right on. Easy peasy. Thanks for the advice!

Offline ampsrampstramps

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #20 on: November 13, 2012, 08:17:52 PM »
So good. That seat is epic, the brown leather is the real deal. Nice work.
"When you've got them by the balls, their hearts and minds will follow." - John Wayne
1978 CB550K / 1980 CB750F / 1973 CB450 DOHC / 1975 TL250 / '82 FT500 / '78 SR500 / '92 XT600

Offline Finksies

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #21 on: August 16, 2013, 07:14:41 PM »
Just sold my cb750. Here are some final pictures. Just picked up a 78 cb750 super sport, Ill be starting a new thread. Enjoy!

















« Last Edit: August 16, 2013, 07:19:45 PM by Finksies »

Offline Jconley

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #22 on: December 06, 2013, 11:57:29 AM »
Hey, can who ever built the Honda cb500 t shoot me an email? I just actually bought the exact bike from a guy in Revere Mass. Would love to talk to whoever built the awesome machine. Thanks
Jeff

Offline Bankerdanny

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Re: 1977 CB750 Supersport 2-up Cafe
« Reply #23 on: December 06, 2013, 12:28:53 PM »
Jconley: welsome ot the board. Why are you posting this question in this thread?

If you have a question about the CB500 twin start a new thread in the Other Bikes section. It's very active and you should be able to get the answers you need there without hijacking someone elses thread.
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200