Author Topic: CB750 K0 Restoration - Round #3  (Read 44372 times)

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traveler

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Re: CB750 K0 Restoration - Round #2
« Reply #25 on: December 31, 2009, 09:54:05 pm »
Couple points, if I may:

1.  The GF looks great!
2.  I'm sorry, but I hope you are unable to get the bags to fit on the bike.  The bike looks great the way it is...the bags are going to ruin it, IMHO.
3.  Use a cometic head gasket, if you're not going to O-ring the head, then ensure you re-torque the head after it has been "heat cycled" a few times
4.  Master cylinder leak?  New seals for the cylinders, and possibly new crush washers for the banjo bolt.

Cheers,

~joe
« Last Edit: January 01, 2010, 08:36:05 am by traveler »

Offline Johnie

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Re: CB750 K0 Restoration - Round #2
« Reply #26 on: January 01, 2010, 06:14:04 am »
Gosh Simpson, your KO looks like mine... ;D It really does look great in that picture. Are you planning on taking a long trip that you need all those hard bags?
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

Oshkosh, WI  USA

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #27 on: January 01, 2010, 12:41:04 pm »
Worked all day, it was great!  ;D

1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #28 on: January 01, 2010, 12:42:30 pm »
Other side...
Showcasing the new NOS oil hose and clutch cover now.  ;)
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #29 on: January 01, 2010, 12:51:39 pm »
Couple notes from today...

1.) Can't help but be worried all gaskets are oil tight. Hopefully I did a good job. Used a little Yamabond in the trouble spots.
2.) Noticed the steering head had a dimple stop pointing straight. Thought I would be forced to upgrade to modern bearings but I remembered on ball bearing was found after assembly last winter. I took it apart and added the ball, tighten and test. All seems smooth and fluid now.  :D
3.) The rear swing arm original collar fell out of the bushing when I moved the swing into place today. I think it would be a wise time to upgrade to brass. I'd like to keep it original but last summer I felt awkwardness in the corners, especially when riding two up. Now to find a supplier for these things.  ???

  
« Last Edit: January 01, 2010, 04:28:57 pm by Simpson »
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #30 on: January 01, 2010, 12:55:54 pm »
Couple points, if I may:

1.  The GF looks great!
2.  I'm sorry, but I hope you are unable to get the bags to fit on the bike.  The bike looks great the way it is...the bags are going to ruin it, IMHO.
3.  Use a cometic head gasket, if you're not going to O-ring the head, then ensure you re-torque the head after it has been "heat cycled" a few times
4.  Master cylinder leak?  New seals for the cylinders, and possibly new crush washers for the banjo bolt.

Cheers,

~joe


Thanks Joe! Appreciate the advice. Understand your thoughts on the saddle bags, it has been an acquired taste over the last couple years. Reserve judgment until its complete, I had them mounted and the atheistics might surprise you. Fitment seems good.

The top case is only for long trips and will be removed when not in use. Those things never look good!
« Last Edit: January 01, 2010, 01:04:52 pm by Simpson »
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #31 on: January 01, 2010, 01:02:52 pm »
Gosh Simpson, your KO looks like mine... ;D It really does look great in that picture. Are you planning on taking a long trip that you need all those hard bags?

Absolutely! My girlfriend and I have traveled enough last summer to know the CB750 does the job just fine. We will step up to the Goldwing few years down the road. This year will most likely do more coastal and mountain exploration. Weather permitting we will be at Laconia. The only issues we had last year was the seat comfort and luggage. The old foam had collapsed and became painful after an hour.The new Yamiya feels amazing so far.
« Last Edit: January 01, 2010, 02:20:01 pm by Simpson »
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Johnie

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Re: CB750 K0 Restoration - Round #2
« Reply #32 on: January 01, 2010, 04:56:17 pm »
You will like the Yami seat. I have one also with the red foam and it is real comfortable. It better be good for the cost... ;D
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

Oshkosh, WI  USA

Offline hoodellyhoo

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Re: CB750 K0 Restoration - Round #2
« Reply #33 on: January 02, 2010, 07:27:59 am »
Progress looks great! Can't wait to see it when it's done (saddlebags and all!)
1972 CB350F (Back from the Dead!)- http://forums.sohc4.net/index.php?topic=20822.0
1965? S65 - Coming Eventually!
1972 CB750K2 (father-son project)
1976 CB750K6- (sold) http://forums.sohc4.net/index.php?topic=96859.0
1976 CB750K6 (sold)- http://forums.sohc4.net/index.php?topic=62569.0

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #34 on: January 02, 2010, 08:48:01 am »
Okay, it's been a fruitful week I think, pending I get no oil leaks.  ;)

1.) Waiting on carb parts getting nickel plated parts, been a month, starting to get irritated
2.) Ordered bronze swing arm bushings from partsNmore
3.) Broke 8x56 chrome finish bolt in triple tree, they are hard to find, using old one  ???
4.) Waiting on a the lower NOS rubber brake hose in shipping
5.) Waiting on saddlebags and case to be painted
6.) Waiting on saddlebag mounting hardware in shipping

Not sure how I'm going to chrome the mounting hardware and saddlebag cages yet.
Looking for a reasonable cost solution. Johnie can you pull some strings at the Chrome Shop?  ;D
« Last Edit: January 04, 2010, 02:25:52 pm by Simpson »
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #35 on: January 02, 2010, 08:51:43 am »
Note to self:
Need to order Yamiya braking rebuild parts
1.) Piston
2.) Ring
3.) Bleeder
4.) Maybe banjo bolts
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #36 on: January 02, 2010, 01:10:36 pm »
Saddlebag mounting hardware arrived today. Now to drill new mounting holes and find appropraite bolts.
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #37 on: January 03, 2010, 08:37:29 am »
Bought the remaining hardware and secured saddlebag brackets in place as design by me and machined by an extremely helpful friend.  :D

SOLID!

I could not be happier with fit and finish. Think I will clear coat the parts.

Now to buff the chrome out.


« Last Edit: January 04, 2010, 02:00:43 pm by Simpson »
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #38 on: January 03, 2010, 10:03:39 am »
Pics
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #39 on: January 04, 2010, 08:28:32 am »
Picked up the carb parts today. They turned out little shinier than I wanted. Al well...

1970 CB750 K0
1975 CL/CB 360 Mix

traveler

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Re: CB750 K0 Restoration - Round #2
« Reply #40 on: January 04, 2010, 09:14:09 am »
This bike is way too pretty for the bags.

Just say NO to the bags!

This is a factory hot rod!  This is like putting snow tires on a ferrari!

I really hope you change you mind on this. :( :(

~Joe

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Re: CB750 K0 Restoration - Round #2
« Reply #41 on: January 04, 2010, 11:41:34 am »
Okay, it's been a fruitful week I think, pending I get no oil leaks.  ;)

1.) Waiting on carb parts getting nickel plated parts, been a month, starting to get irritated
2.) Ordered brass swing arm bushings from partsNmore
3.) Broke 8x56 chrome finish bolt in triple tree, they are hard to find, using old one  ???
4.) Waiting on a the lower NOS rubber brake hose in shipping
5.) Waiting on saddlebags and case to be painted
6.) Waiting on saddlebag mounting hardware in shipping

Not sure how I'm going to chrome the mounting hardware and saddlebag cages yet.
Looking for a reasonable cost solution. Johnie can you pull some strings at the Chrome Shop?  ;D

Nice project!

The 8x56 chrome is still available from Honda, as new part. I bought two at David Silver Spares in the UK, replcement nr. 92101-080560B

http://www.davidsilverspares.co.uk/parts/by-part-number/part_92000080560B/



Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #42 on: January 04, 2010, 02:06:49 pm »
Nice project!

The 8x56 chrome is still available from Honda, as new part. I bought two at David Silver Spares in the UK, replcement nr. 92101-080560B

http://www.davidsilverspares.co.uk/parts/by-part-number/part_92000080560B/


Thanks! I asked Yamiya to send me one but if it falls through I'll hit DSS.
That's a relief knowing another place.
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #43 on: January 04, 2010, 02:17:06 pm »
Status List:

1.) Waiting on bronze swing arm bushings from partsNmore
2.) Hoping Yamiya Sends replacement 8x56 chrome finish bolt in triple tree, if not DSS
3.) Waiting on saddlebags and case to be painted
4.) Waiting on SS caliper piston, seal and bleeder from Yamiya
5.) Need to buy replacement breather hose
6.) Need to buy replacement carb bowl drain hoses
7.) Need to buy saddlebag weather stripping
8.) Need to buy wiring for saddlebag blinkers
9.) Need to buy new rear tire
« Last Edit: January 04, 2010, 02:25:25 pm by Simpson »
1970 CB750 K0
1975 CL/CB 360 Mix

Offline andy750

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Re: CB750 K0 Restoration - Round #2
« Reply #44 on: January 04, 2010, 02:36:42 pm »
I like the saddlebag mounts :-) I cant tell from the photos but are the mounted only at the 2 top bolts or is there a mount near the passenger foot peg? I only as I am planning on something similar in the future. Here is a photo of my 74 2-up...I agree it can be done...this was a 1200 mile trip over 8 days to the Adirondacks, NY.



cheers
Andy
Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline Johnie

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Re: CB750 K0 Restoration - Round #2
« Reply #45 on: January 04, 2010, 02:40:15 pm »
I like the saddlebag mounts :-) I cant tell from the photos but are the mounted only at the 2 top bolts or is there a mount near the passenger foot peg? I only as I am planning on something similar in the future. Here is a photo of my 74 2-up...I agree it can be done...this was a 1200 mile trip over 8 days to the Adirondacks, NY.



cheers
Andy

That is a fantasic pic there Andy. There is no way I could get my wife on that long a trip on the 750. We have done it on the Wing, but her butt could not last that long on the CB. And she has a small butt too.  ;D
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

Oshkosh, WI  USA

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #46 on: January 04, 2010, 03:35:20 pm »
I like the saddlebag mounts :-) I cant tell from the photos but are the mounted only at the 2 top bolts or is there a mount near the passenger foot peg? I only as I am planning on something similar in the future. Here is a photo of my 74 2-up...I agree it can be done...this was a 1200 mile trip over 8 days to the Adirondacks, NY.
cheers
Andy

Hi Andy, It only mounts to the frame at the rear shock and signal light mount only. I built in a heavy steel (not alum) support bar going to the lower part of the saddlebag cage because I was worried about bouncing/jiggling/sag under heavy loads. This seems to really stabilize the load (without road testing yet, just me jiggling). At first I was worried about only two bolting points, but Gordan re-assured me his Bates saddlebags are stucturely sound with similar mounting. He described holding a 12 "sodas" very easily with little sag. For me, I needs it to carry 3-5 bottles of wine each side need be. We enjoy winery tasting and buying along the way (no we never drink and ride, wine gets spit out). Additionally it might have to carry a weekend worth of cloths for 2up. These paricular saddlebag are a bit more roomy than the Bates, which was a selling point for me. Last year we took a trip from Virginia Beach to Ocracoke Island racked up about 450 miles. Temperatures coming home were about 97 with high humidity. The engine never complained. The riders might have complained though... That old seat hurt my ass so bad, I was sitting on folded shirts coming home. Not to mention my wrists from the strong throttle return. Throttle issue solved with a cruise lock.  ;D


« Last Edit: January 04, 2010, 04:21:55 pm by Simpson »
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #47 on: January 05, 2010, 10:18:04 am »
Here are different photos of us traveling last year. If you look close, we have a cooler strapped to the back in one photo.
The saddlebags should be a big help!
1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #48 on: January 05, 2010, 10:18:33 am »
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1970 CB750 K0
1975 CL/CB 360 Mix

Offline Simpson

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Re: CB750 K0 Restoration - Round #2
« Reply #49 on: January 05, 2010, 10:19:12 am »
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1970 CB750 K0
1975 CL/CB 360 Mix