Author Topic: 1976 Honda CB550  (Read 12535 times)

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Offline przjohn

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Re: 1976 Honda CB550
« Reply #75 on: March 31, 2019, 03:43:01 PM »
To keep the wiring going the bars and bar switches got mounted. The Left Side Switch has it's wiring running through the bars so the bars need to be drilled. I have read opinions on not doing this to non OEM bars as it weakens the bars and that the OEM bars were reinforced. I disagree and don't see any sign of reinforcement in the bars I took off that were definitely drilled by some factory. The base clamps on both sides of the 3/8 X 3/4 Inch hole I cut are surely going to secure the bars, in fact if you look at modern street bike bar risers they are 2 piece anyway in this area. Then there's the fact that this is a road bike and we are not thrashing it through the woops of Baja. IMO it is a non issue.

In order to put the low bars on this bike I did something that I did on the 76 CB750F project. The brake line throttle cables are from a 400F. Here is a pic of the 400F brake line installed.



Also needed to restore the meters so those wires could get into the headlight shell. If you are going to restore your meters save some time and buy new rings. You can use either of the tools pictured below to remove your rings, I used the one on the left.



The trip reset switch was broken on the speedo that came with the bike. The casing was damaged too so I got an Ebay speedo but it was a Nippon Seiki and not and ND. Kind of weird as I bought the parts as an assembly with the tach and bracket and the tach was ND? The reset switch would not match up so I used a 15% silver braze to but connect the to parts together.




A before pic of the meters,




And after,



I ordered the wrong battery and am still waiting on some front brake parts from CMSNL that are supposed to be here tomorrow. Hope is to start the bike next weekend then, we'll see. Some more progress pics.











I like poetry, long walks on the beach, and poking at dead things with a stick.

Offline Can550

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Re: 1976 Honda CB550
« Reply #76 on: March 31, 2019, 07:24:55 PM »
Looking beautiful
Taillight, it’s me or it is actually upside down ?


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Offline przjohn

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Re: 1976 Honda CB550
« Reply #77 on: April 01, 2019, 07:39:30 AM »
Looking beautiful
Taillight, it’s me or it is actually upside down ?


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Dolt! There's a Homer moment. That one just flew right by me, thanks for the call.
I like poetry, long walks on the beach, and poking at dead things with a stick.

Offline jakec

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Re: 1976 Honda CB550
« Reply #78 on: April 01, 2019, 09:19:19 AM »
Now you have to leave it that way.
1970 CB750 K0
1977 CB750 Chop
1997 XR650L

Offline przjohn

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Re: 1976 Honda CB550
« Reply #79 on: April 07, 2019, 02:05:58 PM »
Back at the electrical and all was looking well until the start circuit. This took me awhile to figure out. I will try and document it the best I can so that maybe the next guy will have it easier. When you mix reproduction parts on bikes that have Euro and US Specs there are going to be conflicts. Basically this bike came with a Zenor Diode as described previously. The harness came ready to accept the Starter Safety Relay. All the following is to be able to get the bike to use the Neutral Switch or Clutch Switch to start as designed with the reproduction parts that are available. It is not a hard to perform modification.

Here is a diagram of the mod, sorry for my poor graphics.



The Green and Red (G/R) wire coming from the starter solenoid will ground directly in the new reproduction harness making the safety circuit useless. If you don't care about that you are good to go, grab a beer and skip this tutorial.

Cut out the Red Molex connector that went to the Starter Safety Relay and cap all wires except the G/R and the LG/R (Light Green and Red) . Disconnect and cap the G/R wire from the Molex Connector on the electrical panel to the Starter Solenoid. Take the G/R from the Solenoid and route it to connect to the G/R from the Clutch Switch that was on the Red Molex Plug and the G/R from the Zenor Diode. The LG/R on the Diode gets connected to the LG/R that was on the Red Molex Plug. Some pics,

Dead end and cap the Male fitting shown here that comes from the Molex Plug on the electrical panel. Make a new G/R from the Solenoid, ( about 10" long) shown here as a completed plug.



Bring that wire to meet the G/R from the Clutch Switch and the G/R to the Diode shown here is the 3 way connection. Connect the LG/R that was connected to the Red Molex Connector and connect to the diode.



When you take a minute and look at it, this mod takes a few minutes at best.

Since the bars are now lower the clutch cable had to be shortened 120MM



I've got 2 great kits for cables but honestly, 90% of what we normally do can be done with just the Motion Pro Kit. The Venhill Kit can reproduce just about cable.




Measure twice cut once. The end of the cable gets a slight fray to hold it in to the new cable end.




It is then dipped into my solder pot that is nothing more that a 1-1/4" end cap with solder in it. It gets heated by the torch for like 1 minute until the solder melts.



You end up with a perfect factory looking cable end.



Electronic Ignition is installed and timed.



The new Antigravity Battery got installed today.



And then the Gremlins came home. Went to spin the motor with no plugs to circulate oil, it screeched and screamed like hell. WTF? The motor has been consistently turned over by hand smooth as silk. Hit the button again and this time it sounded like the motor seized. Grabbed the 23MM Socket and manually turned the motor over with ease, no motor seized. Took Starter Motor off and did what I should have done in the beginning, Bench Test It. The starter motor is farked and I am going to figure out the best way to deal with that. Was hoping to start the bike this weekend but I ain't no kicker.



Got the front brake finished and started on the seat. I am cheating here and using a David Silver Repro Seat as the pan of this one is doo doo bengata. The problem I ran into is that the PO of this bike must have done some seat work as the seat has been recovered and foam modified, guess he didn't think having a seat latch was a big deal. The big problem for me was that the parts I bought for the latch/lock don't even come close to fitting up. Went to Ebay and found the bracket I am missing. Hoping I can still use these once the bracket comes in.




Started to mock up the tank and have a choice between 2 emblems. The first is the Gold Border Emblem and the second is the Black Border Emblem. I am open to opinions on which to use.







Some progress pics,







Thanks for following along with my project.


« Last Edit: April 07, 2019, 02:54:24 PM by przjohn »
I like poetry, long walks on the beach, and poking at dead things with a stick.

Offline calj737

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Re: 1976 Honda CB550
« Reply #80 on: April 07, 2019, 02:39:48 PM »
Personally, I think the black border sets off the color of the tank better. Sharper contrast and more stock appearing to me.
'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 BRG-BIRD

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Re: 1976 Honda CB550
« Reply #81 on: April 07, 2019, 07:02:31 PM »
^ I agree
“You are either on something or onto something.” The Comman Man

Offline jamesw

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Re: 1976 Honda CB550
« Reply #82 on: April 08, 2019, 05:42:30 AM »
+3 black border badges
72K-F 750 Cafe
75K 750 Cafe
75F 750 Restoration

Offline WesTenRacing

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Re: 1976 Honda CB550
« Reply #83 on: April 08, 2019, 03:53:49 PM »
I just read through this. Great job!
I would use the black bordered emblems also.

Offline przjohn

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Re: 1976 Honda CB550
« Reply #84 on: April 08, 2019, 05:56:14 PM »
Black border it is.
I like poetry, long walks on the beach, and poking at dead things with a stick.

Offline przjohn

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Re: 1976 Honda CB550
« Reply #85 on: April 14, 2019, 01:57:47 PM »
It Runs! Started right up with the new starter, oil pressure came right up too, always good to see. Synched the carbs and only #3 was a little far out from the bench synch. Headlight is a Halogen.



I like poetry, long walks on the beach, and poking at dead things with a stick.

Offline przjohn

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Re: 1976 Honda CB550
« Reply #86 on: April 14, 2019, 02:05:26 PM »
And that's it. A bittersweet moment when "It's Done" Took the bike through the gears and everything ran fine. The only problem I found was that the side stand was bent and it had to be heated, bent back, and painted. This week will be DMV and hoping to have some nice weather to put a couple of hundred miles on it and chase any Gremlins away that may show up, and a few always do. Then it's off to our yearly trip to Deals Gap NC. Next Winter will be a 1983 KTM 250MXC. Thanks for viewing my build and have a great riding season.























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Offline 02z06dave

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Re: 1976 Honda CB550
« Reply #87 on: April 14, 2019, 03:58:39 PM »
Nice work! It looks great

Offline Stev-o

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Re: 1976 Honda CB550
« Reply #88 on: April 14, 2019, 04:22:42 PM »
Great job, John!  Will be nominating you for BOTM...
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline calj737

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Re: 1976 Honda CB550
« Reply #89 on: April 14, 2019, 04:54:49 PM »
For some reason, that bike really strikes my fancy. Beautifully executed, perfectly painted for the era, and just clean, classical, and wonderful to see. I’ll second that BOTM as soon as Stev-O makes good.
'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 seanbarney41

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Re: 1976 Honda CB550
« Reply #90 on: April 14, 2019, 05:30:10 PM »
John, you sir, do excellent work.  That little guy should slay the dragon quite nicely.
If it works good, it looks good...

Offline BRG-BIRD

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Re: 1976 Honda CB550
« Reply #91 on: April 14, 2019, 07:23:29 PM »
Looks great, nice work and certainly something to be proud of!
“You are either on something or onto something.” The Comman Man

Offline SOHC4 Cafe Racer Fan

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Re: 1976 Honda CB550
« Reply #92 on: April 14, 2019, 10:08:08 PM »
Your bike has been duly nominated and seconded for BOTM.  Please post an acceptance of the nomination: http://forums.sohc4.net/index.php/topic,176614.0.html
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 Can550

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Re: 1976 Honda CB550
« Reply #93 on: April 15, 2019, 06:52:06 AM »
Beautiful looking bike
Great work and detail
Certainly earns BOTM


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Offline jakec

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Re: 1976 Honda CB550
« Reply #94 on: April 15, 2019, 09:35:24 AM »
damn.
1970 CB750 K0
1977 CB750 Chop
1997 XR650L

Offline MauiK3

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Re: 1976 Honda CB550
« Reply #95 on: April 15, 2019, 09:47:14 AM »
Wow, nothing but awesome.
BOTM for sure.
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline przjohn

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Re: 1976 Honda CB550
« Reply #96 on: April 17, 2019, 02:18:36 PM »
All day to get this bike registered today. I don't know about other states but CT is getting to be more and more a PITA to get something registered that isn't cut and dry for them. I had to argue my point politely today and bring in a supervisor because the desk person "Perceived" a registration requirement that didn't exist. I won out but these people just come up with stuff they think they need and have no knowledge of the requirements for pre - 80 vehicles. I get that it is a tough job and there are a ton of people trying to put something over on them but know your laws. Anyway, got the bike registered and looking forward to a great Summer putting some miles on.
I like poetry, long walks on the beach, and poking at dead things with a stick.

Offline calj737

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Re: 1976 Honda CB550
« Reply #97 on: April 17, 2019, 04:31:04 PM »
All day to get this bike registered today. I don't know about other states but CT is getting to be more and more a PITA to get something registered that isn't cut and dry for them. I had to argue my point politely today and bring in a supervisor because the desk person "Perceived" a registration requirement that didn't exist. I won out but these people just come up with stuff they think they need and have no knowledge of the requirements for pre - 80 vehicles. I get that it is a tough job and there are a ton of people trying to put something over on them but know your laws. Anyway, got the bike registered and looking forward to a great Summer putting some miles on.
Its odd that it takes 1/2 the amount of time to register these bikes as it does to restore them... ::) Fcuking state bureaucracies...
'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 MauiK3

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Re: 1976 Honda CB550
« Reply #98 on: April 18, 2019, 10:16:05 AM »
On the other extreme, here in Hawaii you can drive around with something unregistered, maybe get caught once every so often, get a $100 fine and keep going. This is due to some poorly written laws. This has resulted in people driving around with expired out of state plates, plates from the "Kingdom of Hawaii" and a few other versions. No insurance, no registration. There is nowhere for a ticket to be sent since there is no owner of record.
If it suffers a fatal problem, the drivers of these just leave them on the side of the road and they eventually get picked up under the abandoned vehicle code, which takes a lot of time.
Somewhere in the middle is the answer.
1973 CB 750 K3
10/72 build Z1 Kawasaki