Author Topic: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!  (Read 3561 times)

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Offline RRRToolSolutions

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Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« on: September 14, 2006, 08:24:02 PM »
I picked this bike up in May and have enjoyed the help and advice you guys have given. I probably won't post much as I'm moving onto my 1973 TX650 Yamaha I purchased in June. It's next in line to see some TLC.

You guys gave me a lot of inspiration and many gave gobs of sound advice....I give a big thumbs-up to you all. These are great bikes. This was my first Honda Four rebuild and I am so very much impressed with the Honda over several other brands with regards to inginuity. Probably the most unique piece of engineering which I would label as extrordinary is the CB750's clutch mechanisim. As a collector, I've built and own several Kawasakis, Yamahas, and other Hondas. None have a clutch anywhere near as well designed. Their screw-type pushers rely on a rod going through the crankcase, good lubrication, and still they perform marginally. The CB's clutch on the other hand is a work of engineering art with it's bearings/plane system. It's kick starter is the 2nd piece of brilliance. Instead of a sliding gear which moves in engagement, these have roller bearings that move on an ecentric scale to engage in one direction -Bravo !!

Thanks guys and please enjoy the time we've been given to ride and restore these old bikes. Just think, 100 years ago we'd be on horse back and talking of fixing the wagon -- We are very fortunate indeed to be here "re-living" the 1970's here and now in 2006.

My best Regards,
Gordon









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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #1 on: September 14, 2006, 08:40:05 PM »
Damn son, and I thought my bike was clean! ;D How much did you replace and how much were you able to "bring back"? What did you use on the cylinders/head to make them look that way?
A fine looking ride. 8)

Offline burmashave

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #2 on: September 14, 2006, 10:41:56 PM »
Brilliant!
Quote from: SOHC Digger, RIP
'Ere's whatcha do, Guvna', just throw a couple dookie logs in the hearth and bob's your uncle!
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Offline jevfro

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #3 on: September 15, 2006, 12:10:20 AM »
Threads like these are so inspiring!!! Please give details on what/how you did any of the engine/body restoration...   I want mine to look that shiny too!

And yes, we are so lucky!  I love hearing about the technical innovation like tales of mythical lore! The CB750 I plan to rebuild was born the same year I was and it is so much fun to "time travel" with a wrench in your hands!  imagine hanging out with the guys who built the first wheels



Wow! I'm finaly a "Enthusiast"
« Last Edit: September 15, 2006, 12:11:51 AM by jevfro »

Online MRieck

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #4 on: September 15, 2006, 04:41:05 AM »
Looks good and should run good....a good combination Gordon.
Owner of the "Million Dollar CB"

Offline dusterdude

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #5 on: September 15, 2006, 05:39:54 AM »
very nice indeed
mark
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Offline ProTeal55

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #6 on: September 15, 2006, 06:25:38 AM »
Excellent work their ILBIKES...
You from Illinois by chance ?
Wanna do another CB this winter (mine) ?
« Last Edit: September 15, 2006, 07:18:48 AM by ProTeal55 »
Joe a.k.a ProTeal55 a.k.a JoeyCocks a.k.a Maker of Friends

Offline RRRToolSolutions

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #7 on: September 15, 2006, 08:34:28 AM »
No, I would never do this for hire - I'd go broke (or either you would). I'm slow and the fun is in the restoration for me. I do this as a hobbie and a means of collecting bikes I always wanted growing up as a kid. I collect old bikes and for years now have restored about 2 per year. It takes me 6-8 months usually to do one. I break it down in small, daily task of 30 minutes to 1 hour (usually) per day. During assembly, I get a little crazy and will go for 24-36 hours straight over a weekend. I work, so these have to come in the evenings at home and on the weekends when the wife is not bombarding me with honey-dos. This one went a lot quicker because so much is available. EBay is full of parts for these CB's as you know.

Guys, I'd be glad to list a chronicle of task, but you'd be bored out of your mind. Also, few will want to invest the expense in an old bike like this. There are several brand-new superbikes out there for sale cheaper than the cost of doing one like this. This cost way more than valued and it won't be a wise retirement investment like some of the odd bikes out there.

The big things are -

1) strip every bolt and piece down to the frame - save them for re-evaluation and comparison since EBay is full of description errors.
2) have the frame chemically stripped
3) have every black part you want to re-use, welded, fixed, straightend, and then beadblasted last (it hides a lot of repairs if you blast metal "after" it's repair.
4) have all of the parts powdercoated with a good gloss
5) disassemble every piece of the engine and clean or replace the parts as desired. Many of the bolts are not available, so I have these hard-chromed and polished.
6) have the chrome sent out for repairs and re-chroming
7) buy, buy, and buy more parts until you're happy with the pieces you'll use for the final assembly. I've got several EBay items that looked good on my screen, but were a wake-up call when received. Plans are to re-list them and get some of that money back (this time making sure the buyer knows the real story).
8) all of the aluminum goes out to a professional polisher for a chromelike finish. These pics are before clean-up and have hand prints, oil, and grease all over them.

This is a Kawasaki H2 (Mach IV) I did last year - just before going to powdercoat. It just takes time and determination.

« Last Edit: September 15, 2006, 08:39:44 AM by Ilbikes »
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Offline bill440cars

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #8 on: September 15, 2006, 08:41:29 AM »

        Great job there Gordon, you have a right to be proud! You really pay attention to detail. When you do the TX, are you checking out the 650motorcycles.com for tips and I guess you might know about Mike's XS parts? If you don't already know, they are 2 good places to check out. Like to see some pictures and details on the TX too.  Keep up the good work Gordon and I'll catch you later on,     Bill
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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #9 on: September 15, 2006, 08:44:14 AM »
Gordon
  I assume you have a bead blast cabinet. What brand are you using?
Owner of the "Million Dollar CB"

Offline RRRToolSolutions

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #10 on: September 15, 2006, 09:08:50 AM »
Mike, I have a NAPA store nearby and they have a Zoom industrial cabinet they use for motors, heads, and stuff. They know me and let me come in on Saturdays and use it as my own. Of course, having nuts, chocolates, and sausage biscuits, ect when I show up doesn't hurt...... When done, I'll go up front and pay a small waste disposal fee and I'm out of there.

I've had 2 Eastwood cabinets and they simply don't compare. This one I "borrow" now is awesome. IT takes paint off like a fan. You just wave it by and it's bare. A blast cabinet is one of those tools where "price does make a difference - a big difference". I sold my cabinets almost new for $50 and threw in the 40 lbs of blast media. After using the real-deal, I'd never use the little ones again.

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #11 on: September 15, 2006, 09:13:13 AM »
Mike, I have a NAPA store nearby and they have a Zoom industrial cabinet they use for motors, heads, and stuff. They know me and let me come in on Saturdays and use it as my own. Of course, having nuts, chocolates, and sausage biscuits, ect when I show up doesn't hurt...... When done, I'll go up front and pay a small waste disposal fee and I'm out of there.

I've had 2 Eastwood cabinets and they simply don't compare. This one I "borrow" now is awesome. IT takes paint off like a fan. You just wave it by and it's bare. A blast cabinet is one of those tools where "price does make a difference - a big difference". I sold my cabinets almost new for $50 and threw in the 40 lbs of blast media. After using the real-deal, I'd never use the little ones again.


I hear you loud and clear. The Eastwood cabinets are good for pistons and light stuff. I use a machnist friends cabinet for heads, cylinders etc. You are right...no comparision at all!
Owner of the "Million Dollar CB"

Offline RRRToolSolutions

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #12 on: September 16, 2006, 03:18:29 AM »
I promised some outside photos -



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Offline bill440cars

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #13 on: September 16, 2006, 05:53:03 AM »


       
                   Incredibly Awesome Bike!! First shots were fantastic and the outside shots Really show the
          outstanding work that you put into the bike. You are to be commended for your work. I believe
          it looks better than NEW, if that's possible. Thanks for the pictures.  Later on, Bill
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PRAYERS ALWAYS FOR: Bre, Jeff & Virginia, Bear, Trevor & Brianna ( Close Friend's Daughter)
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Offline MikeDeB

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #14 on: September 16, 2006, 06:42:16 AM »


       
                   Incredibly Awesome Bike!! First shots were fantastic and the outside shots Really show the
          outstanding work that you put into the bike. You are to be commended for your work. I believe
          it looks better than NEW, if that's possible. Thanks for the pictures.  Later on, Bill

My feelings exactly!  What a beautiful motorcycle!   ;D
Mike (Old SOHC/4 #2641)
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Offline joeb

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #15 on: September 16, 2006, 06:58:19 AM »
Looks real good.

Offline RRRToolSolutions

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #16 on: September 16, 2006, 10:20:47 AM »
Guys, thanks again for the compliments. The Honda is an interesting bike to work on. Like I said earlier, the clutch and kick start systems are unique. I've never seen anything better before and to think they were doing this in 1969 is amazing. I'm amazed as to why Kaw, Yam, and Suz did not copy it. The old 650 Yamaha twins have the worst.

Bill, yes, I know Mike well. He's overseas now - retired. I have bought many parts from him over the years and still use them. They are getting in some reproduction "round" style master cylinders in about 6 weeks. I need one for this 73 TX. The '74 and later kits won't work, so I had to use the rubber parts on my old one so I could ride it. He promises the repro will be an exact match to the original '72 and '73 master. My old 76 650 is on Bob's 650 site from 6-7 years ago, but it's not a good format like this one for Q/A. Thanks for the input though.

Mike, what bike is that in your avitar? It looks like a Honda copy of a ZRX. I love the ZRX and it's retro styling and big, wide power delivery. It's been one of my favorites - too bad it's not vintage stuff .... yet! :)

Bill here's the TX as it sits today. I ride it 3-4 times a week. It's really a classic bike and one of the best ways I know to take a stroll into yesteryear. Certainly nothing on this bike reminds you of today's technology. It vibrates, it makes John Deere power, it vibrates - did I mention it vibrates? But, it is one of my all-time favorites from the 70's where I grew up. My brother had a 1971 gold/white and I loved that thing as a 13 year old. I got lucky on this one when a friend located me one with 5,800 miles on it and all I've really done is change the tank, bars, hoses, chain, sprockets, batter ect from sitting since 1981.

Mike, here's the ZRX and why I say your avitar bike reminds me of one.




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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #17 on: September 16, 2006, 10:38:33 AM »
 Gordon
  If you mean me it's a 1975F. I've owned it 30 years.
Owner of the "Million Dollar CB"

Offline bill440cars

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #18 on: September 16, 2006, 11:42:29 AM »


         Gordon,

                           You know, I enjoy checking the 650motorcycles.comsite and they've got a
                  bunch of bikes that give a person a lot of ideas but, you can only post bikes and look at
                  them usually. Now and then, there will be an email address to respond to. What number
                  listing is your old 76' model under, I'd like to check it out. I've got a 73' and a 75' but they
                  both were in  pretty bad shape, when I got them and I haven't been able to do anything
                  with them yet. Cash doesn't flow enough. That's a prime looking 650 and the Kawasaki is
                  fine looking also. I'm more into the 650s than the Kaw though. I'll have to say, you sure
                  pay attention to detail. Keep up the good work and I'll catch you later on, Bill
Member # 1969
PRAYERS ALWAYS FOR: Bre, Jeff & Virginia, Bear, Trevor & Brianna ( Close Friend's Daughter)
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Main Rides: '02 Durango, '71 Swinger & Dad's '93
                  Dakota LE 4x4 '66 CB77 & '72 SL350K2
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Offline RRRToolSolutions

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #19 on: September 16, 2006, 12:21:55 PM »
Mike, that's the one. The front 1/4 fairing and stripes on yours make it look a lot like the 1983 Eddie Lawson edition Z1000. This ZRX is a copy of both. Now mine doesn't do much more than keep the wind off of the gauges. Makes the wind hit me square in the lower part of the helmet.

The jetting you recommended is working out great. Almost 100 miles today with several cool-downs in between. You've been a big help. I'll sync the carbs with a set of vacume gauges and leave it for now. It just runs too darn well to fool around with it anytime soon. 45 pilots, needle in the middle, and 120 mains - no stumbles, no voids or flat spots. It's the first time in a long while it was that easy.

Regards,
Gordon
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Offline DarkRider

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #20 on: September 16, 2006, 03:58:17 PM »
Ibikes your attention to detail is amazing! What year is your Honda? Looks like a 74 K4 like mine. Rephrase that..it looks just like what mine looked like at one point in its life and the point i want to return it too soon. Hopefully you have no intents of selling a fine machine like that.
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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #21 on: September 16, 2006, 05:24:38 PM »
Mike, that's the one. The front 1/4 fairing and stripes on yours make it look a lot like the 1983 Eddie Lawson edition Z1000. This ZRX is a copy of both. Now mine doesn't do much more than keep the wind off of the gauges. Makes the wind hit me square in the lower part of the helmet.

The jetting you recommended is working out great. Almost 100 miles today with several cool-downs in between. You've been a big help. I'll sync the carbs with a set of vacuum gauges and leave it for now. It just runs too darn well to fool around with it anytime soon. 45 pilots, needle in the middle, and 120 mains - no stumbles, no voids or flat spots. It's the first time in a long while it was that easy.

Regards,
Gordon

Thanks Gordon....once again, beautiful work sir.
Owner of the "Million Dollar CB"

Offline Sam Green Racing

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #22 on: September 18, 2006, 09:21:44 PM »
It's a credit to you Gordon, well done 8)

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Re: Quick Update on the CB750 Hotrod/resto Project - Thanks to Many !!
« Reply #23 on: September 18, 2006, 10:46:13 PM »
Just the inspiration everyone needs!!