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Author Topic: 1974 CB550. Racetech Monoshock. JMR Head. Built Engine. "BLAC"  (Read 204045 times)

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Offline BLAC

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Re: 1974 Honda CB550 Build. It's cash fire time.
« Reply #150 on: April 07, 2016, 07:50:51 PM »
My girlfriend just gave me an iPad so I could stay on this site while I was out in the garage.  I thought it was really nice, now I'm not sure if she is just trying to get rid of me  :P

Thanks again everyone for your advice and help.  I would be a mess without y'all!
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline Camrector

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Re: 1974 Honda CB550 Build. It's cash fire time.
« Reply #151 on: April 07, 2016, 08:46:31 PM »
Don't start "Sexting" GV now!
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Offline BLAC

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Re: 1974 Honda CB550 Build. It's cash fire time.
« Reply #152 on: April 07, 2016, 11:41:24 PM »
Well I finished putting together my carbs and mounted hem up on the bike....

It started dripping gas from the T between 1 and 2...

I decided to kick it and see what happened anyway.  It actually started up on the second kick, it was running strange and inconsistent (to be expected since the carbs have not been synced or adjusted at all) BUT I felt the pipes as it was running on only cylinder 1 and 2, just like it was before I rebuilt the carbs.

Since rebuilding the carbs I have also installed Dyna coils, new wires and plugs.  It's getting spark across all 4 also...

Sigh.
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline GV1390

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Re: 1974 Honda CB550 Build. It's cash fire time.
« Reply #153 on: April 08, 2016, 05:17:16 AM »
Quote from: sinister902 on April 07, 2016, 01:05:58 PM
Quote from: ser1992 on April 07, 2016, 11:39:24 AM
Lololololol good thing my girlfriend doesn't read this board

So I have already ordered spokes and to have the wheels drilled for my 74, will that mess anything up if I send them hubs from a 77/78?

yes. the hubs from 74-76 are different from 77-78

Yup, as I mentioned via sext.....my hubs are actually 74-76....we had to turn down a spacer as the 77-78 spacing is different due to the different offset of the drum cover. Wasn't a big deal but, if you need/want them just let me know homie.

Glad this thing is coming together, it's going to be marvelous.

:)
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08' Ducati S4RS, 71’ CB500, 71' CL350, 72' R90/6, 16' Ural Gear Up & 02' ZRX1200R.

Offline sinister902

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Re: 1974 Honda CB550 Build. It's cash fire time.
« Reply #154 on: April 08, 2016, 06:14:41 AM »
Quote from: ser1992 on April 07, 2016, 11:41:24 PM
Well I finished putting together my carbs and mounted hem up on the bike....

It started dripping gas from the T between 1 and 2...

I decided to kick it and see what happened anyway.  It actually started up on the second kick, it was running strange and inconsistent (to be expected since the carbs have not been synced or adjusted at all) BUT I felt the pipes as it was running on only cylinder 1 and 2, just like it was before I rebuilt the carbs.

Since rebuilding the carbs I have also installed Dyna coils, new wires and plugs.  It's getting spark across all 4 also...

Sigh.

have you checked/adjusted valve clearances?

if it's leaking at the overflow for 1&2, fuel level in the bowls is too high. if the other two are not running, fuel level may be too low....have you set all the float heights per the manual and verified the float valves are seating properly and cutting off fuel?

beyond that, all that's left is check timing with a timing light and sync the carbs.
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Offline BLAC

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Re: 1974 Honda CB550 Build. It's cash fire time.
« Reply #155 on: April 11, 2016, 11:49:26 AM »
I got it running on all 4, not tuned or anything but it runs, revs and idles so I decided to pull it apart so I can start on the real build + final assembly =)

I have officially hit the point of "no going back"

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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #156 on: April 15, 2016, 04:49:02 PM »
I found a lot of dried, cooked and crispy wired while pulling the wiring harness.. so it looks like I'm going to have to go with the Motogadget M-Unit.

For a battery, I am looking at Shorai.  I will only need something small since the bike will be kick only, any popular choices in that line that stick out above the rest?
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #157 on: April 15, 2016, 05:33:26 PM »
Traffic.. how did you know I lived in LA  :P

I was thinking about finding a stock harness. but I want to minimize and simplify everything on this bike (no horn, no starter, etc etc.  Just the bare minimum to let the bike run)

I have been reading your writeups on the M-Unit and it looks like what I need (not cheap though!).  It also looks ALMOST easy enough that I MIGHT be able to figure it out... I loathe electrical work.  >:(

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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #158 on: April 15, 2016, 08:14:43 PM »
Thanks, I'm starting to understand it more.

I have installed 5ohm Dyna coils, Dyna wires, 5kohm resistor caps with resistor plugs.

I also plan to order the Hondaman ignition.

(Side question, I thought I was told to run resistor caps and plugs together with his ignition, does that sound right?)
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #159 on: April 18, 2016, 12:42:07 AM »
This has been a weekend of progress.  The frame is completely stripped, hubs have been cut out and polished, forks have been disassembled and polished (waiting on new tubes to reassemble with), handlebar mounts on the triple have been cut off, front and rear hubs have been disassembled and bearings removed..

I'm sure I'm forgetting stuff, but I have put about 10 hours into it the past couple days, its pretty amazing the number of pieces that make up these bikes  :P





This is just sanded, no buffing wheel yet  ;D
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #160 on: April 18, 2016, 11:50:19 AM »
Yep, I actually ordered all new hardware from Race-tech along with the springs/oil/gold valve emulators.

In other news, I have developed a new hatred of polishing metal.... anyone have pointers to speed it up or is it just best done by hand with 320, 400, 600, 800, 1000 grit sand paper.

Im running low on elbow grease..
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline joeyvans

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #161 on: April 18, 2016, 11:59:48 AM »
Sure... farm it out. Or, do like I do and don't polish at all. I don't mind having a 10-footer, but I guess if I ever disassemble for a restoration... it will be prudent to polish.


Sent from my iPhone using Tapatalk
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1976 CB550 K2
Non-SOHC4 - 1974 CB450 K7
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Offline Camrector

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #162 on: April 18, 2016, 01:18:24 PM »
I've had great results with a hand held orbital sander, and time.
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Offline BLAC

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #163 on: April 18, 2016, 01:21:12 PM »
Sounds good!  I will keep at it!

I have the bike pretty much pulled completely apart.  Aside from the engine, I'm not sure if there are two parts bolted together anymore  :o

The amount of time and money I'm going to have into this thing, might as well suck it up and keep sanding  :'(


OH does anyone have a suggestion to where I can get my frame sandblasted (if that is the right blasting that is preferred) in Los Angeles?
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline MickB

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #164 on: April 18, 2016, 02:34:27 PM »
Ser, unfortunately elbow grease is the way, the sandpapered you mentioned will give great results, I also use a Dremel with a little polishing pad and it works fantastic.
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Offline GV1390

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #165 on: April 19, 2016, 05:20:58 AM »
Quote from: ser1992 on April 18, 2016, 01:21:12 PM
The amount of time and money I'm going to have into this thing, might as well suck it up and keep sanding  :'(

Remember when you told me you just wanted to add a couple bolt-ons and keep a low budget? That didn't last long! haha.
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08' Ducati S4RS, 71’ CB500, 71' CL350, 72' R90/6, 16' Ural Gear Up & 02' ZRX1200R.

Offline BLAC

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #166 on: April 19, 2016, 11:36:03 AM »
Quote from: GV1390 on April 19, 2016, 05:20:58 AM
Quote from: ser1992 on April 18, 2016, 01:21:12 PM
The amount of time and money I'm going to have into this thing, might as well suck it up and keep sanding  :'(

Remember when you told me you just wanted to add a couple bolt-ons and keep a low budget? That didn't last long! haha.

haha yep, I probably have 4k into it at this point  :o

now I'm just waiting on my seat cowl and rear loop to show up  :P

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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline rhodeleon

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #167 on: May 03, 2016, 09:31:52 AM »
I ran into a similar issue with my '76 550. Rebuilt the carbs, put them back on, opened the fuel valve and out comes gas from the T junction between 1 and 2. Disassembled them again to check the float chambers, and it looked like gas was getting into all of them. Adjusted the floats as specified and hit them all with carb dip and tried again, same thing. Bike starts and sounds pretty good, but idk why the hell gas is leaking out. Did you end up finding the root cause/have any guidance on where to go next?
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Offline Camrector

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #168 on: May 17, 2016, 12:39:22 PM »
I'll pm you about my cowl.
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Offline BLAC

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #169 on: May 17, 2016, 04:41:41 PM »
Cool, got things worked out with my cowl.  Should be here in 2 weeks, and I have also made the decision to chop up the subframe and make a new clean one. 

She will be pretty one day!

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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline Bankerdanny

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #170 on: May 18, 2016, 03:44:06 PM »
Quote from: ser1992 on April 15, 2016, 05:33:26 PM
Traffic.. how did you know I lived in LA  :P

I was thinking about finding a stock harness. but I want to minimize and simplify everything on this bike (no horn, no starter, etc etc.  Just the bare minimum to let the bike run)


I wouldn't ride in the city without a horn. Too many stupid people, drivers and pedestrians.
« Last Edit: May 18, 2016, 03:48:07 PM by Bankerdanny »
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"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

Offline SOHC4 Cafe Racer Fan

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #171 on: May 18, 2016, 03:49:00 PM »
Hah! I was thinking of installing a Stebel Nautilus horn (139dB) on my next build, but it is a heavy sucker.  http://www.stebel.it/stebel/products.asp?IDserie=6&uso=1&tipologia=auto

Does anyone know of a comparably loud yet lighter alternative?
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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 RAFster122s

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #172 on: May 18, 2016, 04:05:40 PM »
The Nautilus is a nice one but it is bulkier than stock. It can fit in the stock location but I decided to make a thicker mount bracket to handle the weight and haven't finished it.
It will get attention. I got hooked on air horns running a Hella unit in my '66 Volvo 122S. The higher pitch got attention.
No one can claim they didn't hear you.
I guess you could go crazy and mount a train horn on the front  above the fender if you wanted a horn to make people jump even higher.
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Offline BLAC

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #173 on: May 18, 2016, 04:19:53 PM »

Quote

I wouldn't ride in the city without a horn. Too many stupid people, drivers and pedestrians.

I am thinking about hiding it up under the fuel tank, but then again I dont plan on having any buttons on the handlebars.. well see.


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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline RAFster122s

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Re: 1974 Honda CB550 Build. "BlackSOHC"
« Reply #174 on: May 19, 2016, 07:43:48 AM »
Sometimes I will use a horn if it looks like the driver is going to make the turn ahead of me. That way if I'm wrong it might just prevent them from making the move, whereas if I'm right they will have done the deed a little faster I hope or know they are doing it.  People can't judge the speed of motorcycles I think...they often think they are slower than they actually are, not perceiving the speed as easily. Some drivers cut it very close even with cars.

Daughter hit a car that darted in front of her while she was braking to stop for a line of cars and the guy was totally in front of her and she was cited for hitting him.  Not cool but, it is the law.  Jerks out there everywhere.

David
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David- back in the desert SW!
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