CB750F Super Sport Rolling Restoration - Wrist Twisters
 
Thread Tools Display Modes
post #1 of 36 Old 12-07-2014, 12:36 AM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

CB750F Super Sport Rolling Restoration

Well, I decided to add another horse to the stable and found a very decent specimen of an 1981 CB750F Super Sport that was also looking for a good home to go to. The PO said he was doing some carb work as the bowls kept flooding. He claims to have taken them apart replaced gaskets and they still flooded. I suspect just a good cleaning and maybe a float hight adjustment is all it should need but just incase I did buy a rebuild kit. Both the PO and the seller (As the PO is out of state at the moment) claim the bike was a strong runner before the carb work began. It does try to kick over and sounds to have good compression so the fingers are crossed that when I put the carbs back on it will kick over and run.

I don't plan on cafeing this out....as of yet. There are just too many people doing that these days and while I would love to own one this bike is original to the point it still has all the factory stickers still on it. I plan on getting this up and running with out a hitch and buffing the paint and plastic and putting new decals on it.

I'm going to take lots of photos and some videos for you guys. Also, if you want I can provide pricing for parts and what not so that you guys can get an idea of what a rolling restore would cost. I am going to try and use OEM brand new or NOS when ever possible but I know with it being 33 years old I may have to go with reproductions. I do work MIDS right now and have a two year old to watch after so work maybe slow going but the plan is to have her shipshape by the spring.

Here is the first picture of when I purchased and brought her home the night of the 5th. In the picture the side cover are missing and the airbox too. This is becuase the seller brought it down from the mountain thinking he had everything and of course he didn't. He is going back up on Tuesday to get the parts and the manuals for it. My fingers are crossed that they are there as that was not an expense I was figuring on. I have ordered parts already and have taken off the carbs. I have more pictures of that to post later today.
Attached Images
File Type: jpg CB750F.jpg (83.5 KB, 62 views)

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
Sponsored Links
Advertisement
 
post #2 of 36 Old 12-07-2014, 05:03 AM
Ian
 
HeliMech's Avatar
 
Join Date: Jul 2009
Location: Nova Scotia, Canada
Posts: 3,313
Rep Power: 1
 
Very nice find! Should make for a fun project for you.


Before you strip the carb down head over to the local dodge dealership and grab a can of "Mopar Penetrating Fluid". It works wonders for soaking jets and cleaning up parts ..... its literally amazing.

https://www.wristtwisters.com/forums/...ht=mopar+fluid

Good luck with the restore!

HeliMech is offline  
post #3 of 36 Old 12-07-2014, 05:10 AM
rmb
Let's go!
 
rmb's Avatar
 
Join Date: Aug 2009
Location: Sussex Couty NJ
Posts: 7,650
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 9

Cool project! I had a '78 years ago, wish I never sold it.

rmb is offline  
 
post #4 of 36 Old 12-07-2014, 06:32 AM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Carbs are off, rags stuffed in the intake side of the engine to protect from my dog hair, dust laden garage. Working on the carbs later today. I want to do a quick bench sync and see if the pilot air screws were messed with from stock and if so return the to stock. I just have to wait for the parts to come in before I can really go anywhere after this. I think I will do a video for the Bench Sync and Pilot Air screws.
Attached Images
File Type: jpg Naked Length.jpg (81.8 KB, 41 views)
File Type: jpg Naked Width.jpg (108.4 KB, 32 views)
File Type: jpg Speed and Tach Cluster.jpg (55.1 KB, 34 views)

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #5 of 36 Old 12-07-2014, 06:38 AM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Things I did yesterday were

1. Remove seat and fuel tank
2. Removed Carbs
3. Removed Choke cable as it was frozen.
4. Removed the God awful Handlebar grips some jackass put on there.
5. Put air in the flat front tire. Found some dry rot on them so they will have to be replaced.

I may start to try and get the decals off the tank and seat and also the glued on clutch side handlebar grip. Also, I need to build a work bench as I haven't had a project like this yet at the new house and am not properly set up yet.

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #6 of 36 Old 12-07-2014, 09:20 AM
McTavish
 
mcromo44's Avatar
 
Join Date: Oct 2007
Location: Calgary
Posts: 5,656
Rep Power: 1
 
How are the carb diaphragms?
For a bike of that age, they should be very suspect.

mcromo44 is offline  
post #7 of 36 Old 12-07-2014, 09:41 AM
GLG-20
 
Superdog's Avatar
 
Join Date: Aug 2009
Location: Huntsville, AL
Posts: 1,362
Rep Power: 1
 
Garage
Looks like a good/fun project! Subscribed.

I want to do something similar, but haven't found the right bike yet.

Best of luck with the carbs; I'm sure you'll get them sorted without too much problem.

'96 DR650, '01 SV650, '10 Aprilia Tuono 1000R
Superdog is offline  
post #8 of 36 Old 12-07-2014, 10:51 AM
RIDE RED
 
SPYDER's Avatar
 
Join Date: Jul 2011
Location: Boone
Posts: 1,882
Rep Power: 1
 
There's something about those old Hondas, timeless. Nice specimen.

SPYDER is offline  
post #9 of 36 Old 12-07-2014, 07:59 PM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Quote:
Originally Posted by mcromo44 View Post
How are the carb diaphragms?
For a bike of that age, they should be very suspect.
With out taking the carbs apart yet they are preforming like they should when pressing up on the slides. And I get that nice woosh woosh sound as the slide goes up and down. All slides go up and down smoothly as well. But as I said, I do have a rebuild kit coming so when I do get a chance to inspect the diaphrams I can replace if needed.

I didn't get any work done today as I am working graveyard shift and I slept most of the day. I useally don't do that so I was kind of pissed at my self for at least not delving into the carbs as I should have. I'll try shoot more photos and maybe the video of the carbs tomorrow, Tuesday by the latest.

Also, when I build my new workbench I will detail that as well, i.e. materials used and step-by-step instructions on how to build your own.

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #10 of 36 Old 12-08-2014, 04:57 AM
Serial Monogamist
 
ST-DocLizard1's Avatar
 
Join Date: Dec 2007
Location: Hampton, NJ
Posts: 1,507
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 21

I would suggest that you sign up with the rest of the DOHC series afficionados if you have not already. A plethora of information awaits you with years of expertise with this Honda series.

http://www.cb1100f.net/index.php



"FRIENDS DON'T LET FRIENDS EARLY APEX."
ST-DocLizard1 is online now  
post #11 of 36 Old 12-08-2014, 06:34 AM
Silent but Deadly
 
jtaylor's Avatar
 
Join Date: Jan 2011
Location: Grottoes, VA
Posts: 176
Rep Power: 1
 
I had a 1980 Model. Man I loved that bike. The sound was amazing. You might want to look into installing a voltage monitor. These bikes had some Regulator Rectifier problems. I had to keep and eye on mine if I was in traffic a lot. Mine didn't produce enough voltage a low rpms to keep the battery from draining. I had stage 3 jet kits in the carbs and pod filters. I'm still kicking myself for selling it. I had less than $1000 in the whole bike. My brother did the body / paint work and I did the mechanical work.

Jon's Honda 001.jpg

Jon's Honda 002.jpg

Jon's Honda 004.jpg

jtaylor is offline  
post #12 of 36 Old 12-08-2014, 11:43 PM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Beautiful bike jtaylor!!! I was reading on CB750.com that the CV carbs don't really do well with pods as they cant get the correct vacuum with out the airbox. Did you find this to be the case?

I am just going to make the jetting stock and get it running smoothly. After that I will adjust for the altitude here in Colorado.

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #13 of 36 Old 12-09-2014, 07:04 AM
Silent but Deadly
 
jtaylor's Avatar
 
Join Date: Jan 2011
Location: Grottoes, VA
Posts: 176
Rep Power: 1
 
I didn't have any issues with the pod filters. I did have the carb done by a local racing shop. They didn't charge me much and 4 carb are pain to work with. Once everything was tuned up it ran perfectly. I put 15k on it with no issues.

jtaylor is offline  
post #14 of 36 Old 12-09-2014, 11:24 AM
Batman
 
velodesign's Avatar
 
Join Date: Feb 2010
Location: Fargo
Posts: 1,053
Blog Entries: 3
Rep Power: 1
 
You may immediately want to test the charging system, and i am done with those bikes (love them tho) mainly because the stator / charging system is unobtanium for one that is not a rebuild...the 3rd party ones quality sucks and will fry within a year or two. witjinOr so i recall.

I had a 800cc hot cam cb750kfc going...lost it all on a rebuild of the head second round.

I may not have a lot to say but it doesn't mean I don't listen.
velodesign is offline  
post #15 of 36 Old 12-11-2014, 03:40 PM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Thank you Velo I will keep an eye on it. My old 67 Norton had charging issues, with a Lucas electrical system and my current job I am no stranger to chasing electrical Gremlins!

Still waiting on parts for everything. They seem to be trickling in slowly...too slowly. I did get the airbox and side covers from the seller. Left side cover is off of a different bike as it is painted silver and not black. Bought one off of e-nay last night and will wash and sell this one as it is in very good shape.

Having issues uploading the photos of the carbs will try again later.

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #16 of 36 Old 12-11-2014, 05:22 PM
Centurion
 
ewmin3m's Avatar
 
Join Date: Oct 2014
Location: Vancouver
Posts: 1,376
Rep Power: 1
 
Garage
Was looking at a cafe racer version of one of these today. Maybe it can serve as inspiration for you :P
Attached Images
File Type: jpg honda-cb-cafe-racer-3.jpg (102.0 KB, 42 views)

ewmin3m is online now  
post #17 of 36 Old 12-11-2014, 08:21 PM
(Quintus) Pilus Prior
 
Sniper's Avatar
 
Join Date: Feb 2006
Location: Indiana
Posts: 2,490
Rep Power: 1
 
I had an 81 900F, silver and blue. That is a big reason for the 6 year stint with a silver 04 919.

My old 900F did not run right until I put an Accel coils and wires on it. After that it ran great. It was a good old bike. They weigh a ton, tho.

Sniper is offline  
post #18 of 36 Old 12-21-2014, 12:48 PM
Tirone
 
Join Date: Dec 2014
Location: Shepherdsville
Posts: 79
Blog Entries: 3
Rep Power: 1
 
"Great old bikes"

I have had several of the "F" series bikes (all 3 sizes). I would buy them wrecked and then just dig into them. My last wrecked 750 was my best project. I rode it to work, on vacation, to the drag strip occasionally, really had great memories of that bike. It was the reason I purchased my 919. I wish I still had some parts to send you. Good luck with your project!
Attached Images
File Type: jpg image.jpg (13.2 KB, 246 views)

Mark57 is offline  
post #19 of 36 Old 12-21-2014, 04:40 PM
Tirone
 
loosemcgoose's Avatar
 
Join Date: Aug 2014
Location: Wilmington
Posts: 54
Rep Power: 1
 
Good luck with the project. Keep us posted. That's the bike I would build if I was going to do one.

loosemcgoose is offline  
post #20 of 36 Old 12-25-2014, 03:53 PM
Serial Monogamist
 
ST-DocLizard1's Avatar
 
Join Date: Dec 2007
Location: Hampton, NJ
Posts: 1,507
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 21

Still have '81 750F in the stable. Good luck with the restoration.
Attached Images
File Type: jpg Scan_Pic0019.jpg (183.6 KB, 43 views)



"FRIENDS DON'T LET FRIENDS EARLY APEX."
ST-DocLizard1 is online now  
post #21 of 36 Old 12-25-2014, 08:00 PM
Batman
 
velodesign's Avatar
 
Join Date: Feb 2010
Location: Fargo
Posts: 1,053
Blog Entries: 3
Rep Power: 1
 
Come to think of things, i have some parts you may want. Ill snap some pics tomorrow

I may not have a lot to say but it doesn't mean I don't listen.
velodesign is offline  
post #22 of 36 Old 12-29-2014, 10:06 PM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

What do you have Velo? Great looking bike everyone. Sorry for no updates work and the holiday got me pinned down. Slowly coming back together. I will snap some pictures tomorrow.

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #23 of 36 Old 12-30-2014, 05:38 PM
Batman
 
velodesign's Avatar
 
Join Date: Feb 2010
Location: Fargo
Posts: 1,053
Blog Entries: 3
Rep Power: 1
 
Ill have to check the warehouse. Been to effin cold for me to venture out there as wanted...and what remains from the build i cant remember exactly so ill get out there tomorrow probably. Supposed to be about 15 above, thats 30 warmer than today!

I may not have a lot to say but it doesn't mean I don't listen.
velodesign is offline  
post #24 of 36 Old 12-30-2014, 11:07 PM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

We are at -11F here in Colorado. So I know the feeling. Supposedly Alaska is warmer! Even my garage which normaly is around 50F in the winter was below 32F today.

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #25 of 36 Old 01-11-2015, 04:21 PM
Batman
 
velodesign's Avatar
 
Join Date: Feb 2010
Location: Fargo
Posts: 1,053
Blog Entries: 3
Rep Power: 1
 
So i tried to get to the place in the warehouse where my bike and parts are stored for winter...all this stuff is in the way

Looks like they will be there until our new rochester location opens and the fixtures get shipped. Sorry for the bait n switch, but i know i have at least a mint dash light cluster.

ForumRunner_20150111_172133.jpg

I may not have a lot to say but it doesn't mean I don't listen.
velodesign is offline  
post #26 of 36 Old 01-11-2015, 04:35 PM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

It's all good I know how that goes. Maybe when I come up to Bismarck I can come by and see what you got. Think we are planning something for this summer. The wife's family is born and raised in Bismarck and move to CO in the 80s.

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #27 of 36 Old 04-19-2015, 11:14 PM
Batman
 
velodesign's Avatar
 
Join Date: Feb 2010
Location: Fargo
Posts: 1,053
Blog Entries: 3
Rep Power: 1
 
Dave, do you need a new light cluster? This is about the only parts i have now that look through my pile worth while. Otherwise its orig rear sprocket, shocks, pegs, chrome headlight bucket, cams, and a lower triple from a 900f i think.

Other than that, its parts from a zx6r and upper triple from a 954.


ForumRunner_20150420_000958.jpg


ForumRunner_20150420_001354.jpg


ForumRunner_20150420_001405.jpg


ForumRunner_20150420_001016.jpg

I may not have a lot to say but it doesn't mean I don't listen.
velodesign is offline  
post #28 of 36 Old 04-20-2015, 04:57 AM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Let me check, but I think the Chrome Headlight Bucket is the only thing I might need out of that bundle. DO you have a picture of it perchance?

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #29 of 36 Old 04-20-2015, 09:44 AM
Batman
 
velodesign's Avatar
 
Join Date: Feb 2010
Location: Fargo
Posts: 1,053
Blog Entries: 3
Rep Power: 1
 
I can get one, yep! Ill send it tomorrow.

I may not have a lot to say but it doesn't mean I don't listen.
velodesign is offline  
post #30 of 36 Old 04-22-2015, 06:42 PM
Batman
 
velodesign's Avatar
 
Join Date: Feb 2010
Location: Fargo
Posts: 1,053
Blog Entries: 3
Rep Power: 1
 
Heres the bucket with vintage side markers still (smile) exterior is almost flawless, interior i know i.treated with rust stop but not as good as condition as the exterior.

ForumRunner_20150422_194126.jpg



ForumRunner_20150422_194139.jpg



ForumRunner_20150422_194203.jpg



ForumRunner_20150422_194217.jpg

I may not have a lot to say but it doesn't mean I don't listen.
velodesign is offline  
post #31 of 36 Old 04-22-2015, 09:20 PM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Thanks for posting up the photos!!! Hmm, it looks a slight bit different from mine but I am at work so let me double check when I get home. I am willing to bet thats more of the 70s era than 80's.

Sorry for the delay in reporting on this guys! I promise to have some more photos and videos posted up in the near future. I had to do some spring cleaning in the garage and about to get some shelving and a workbench built to provide a great work space for a few much needed projects on the bike.

Projects include:

Removal of decals
Paint buff/maybe even re-spray
Front Master Cylinder rebuild
Front Calipers cleaning/ possible rebuild
Rear Master Cylinder rebuild
Rear Caliper cleaning/ possible rebuild (current rear wheel does not spin freely)
Carbs put back on the bike and vacuumed synced.

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #32 of 36 Old 04-23-2015, 09:11 PM
Tirone
 
Join Date: Dec 2014
Location: Shepherdsville
Posts: 79
Blog Entries: 3
Rep Power: 1
 
The CB 750 Custom may have had a chrome HL bucket, not sure?? It does look like the shape I remember but all the F series bikes had black plastic buckets, if I recall correctly??

Mark57 is offline  
post #33 of 36 Old 04-23-2015, 10:23 PM
Batman
 
velodesign's Avatar
 
Join Date: Feb 2010
Location: Fargo
Posts: 1,053
Blog Entries: 3
Rep Power: 1
 
Yes, this was from my 80 custom. No supersport 750f. I had a 823cc wiseco 900f cam with keihn cr build going on, part wise, thought interchangeable but if not, sorry for no use.

I may not have a lot to say but it doesn't mean I don't listen.
velodesign is offline  
post #34 of 36 Old 04-25-2015, 02:55 AM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Yeah it's the same shape but again mine is black. I actually need the ring on the front of the light. That has a small dent in it.

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #35 of 36 Old 04-25-2015, 02:58 AM Thread Starter
The chill Moderator
 
07919Dave's Avatar
 
Join Date: May 2010
Location: COS:CO
Posts: 3,304
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Another round of ordering parts has begun and garage is shaping up nicely. I have a tentative goal date of making it ride-able by the 5th of May. There is a local group that comprise of 30 year or older bikes that meets the first Wednesday of every month. So I am going to push for the 5th but If I don't make it then June for sure

Never Trade the Thrills of Living for the Security of Existence.
07919Dave is offline  
post #36 of 36 Old 05-18-2015, 09:43 AM
Tirone
 
loosemcgoose's Avatar
 
Join Date: Aug 2014
Location: Wilmington
Posts: 54
Rep Power: 1
 
Pretty cool. That's what I think I want. Good luck.

loosemcgoose is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Wrist Twisters forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome