Author Topic: '74 550 - Patience and Wisdom Project  (Read 17629 times)

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Offline Two-Bit

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Re: '74 550 - Patience and Wisdom Project
« Reply #50 on: December 02, 2012, 03:05:50 PM »
How about some fly by video. I'm anxious to hear that exhaust.  :D

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #51 on: December 02, 2012, 06:01:08 PM »
How about some fly by video. I'm anxious to hear that exhaust.  :D
I have off tomorrow and its supposed to be a nice day. I'll see what I can do!  I'd kinda like to hear it, too!

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #52 on: December 03, 2012, 10:40:43 AM »
Beautiful day, as expected.  Here are some flybys for you.  I am pretty happy with the way it sounds but I'll let the masses do the judging.

1974 CB550 Flybys

Offline Flying J

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Re: '74 550 - Patience and Wisdom Project
« Reply #53 on: December 03, 2012, 05:48:45 PM »
Lucky nobody walked by and stole your camera while you were riding.  :)

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #54 on: December 03, 2012, 06:01:34 PM »
Lucky nobody walked by and stole your camera while you were riding.  :)
;D In the 7 years I've lived here I've probably seen 5 people walking on that sidewalk.  Not a high foot traffic area and it's a nice little town, too!   


Offline iron_worker

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Re: '74 550 - Patience and Wisdom Project
« Reply #55 on: December 04, 2012, 08:16:30 AM »
So do you think it was cleaning the emulsion tubes or chaning those orings that fixed your problem? Or both?

IW

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #56 on: December 04, 2012, 08:21:32 AM »
So do you think it was cleaning the emulsion tubes or chaning those orings that fixed your problem? Or both?
IW
Well, good question.  That's the risk of tweaking several things at once - makes it nearly impossible to pinpoint.  That said, I think replacing the needles and pilot jets with four matching OEMs had the biggest impact.  New o-rings certainly didn't hurt and I also made sure all of the vacuum connections were solid.  I learned a lot through the whole process.

I am now facing some starting complications but I have not had time to sit down and sort through those yet.  My gut says it is something rather minor since the bike is running quite well otherwise.



Offline Two-Bit

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Re: '74 550 - Patience and Wisdom Project
« Reply #57 on: December 04, 2012, 01:21:32 PM »
Nice video! They sound pretty much the same as my 4 into 2 Jardines. My Jardines are getting rusty though and I may replace with the Mac. Thanks for posting.

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #58 on: December 04, 2012, 01:44:24 PM »
Nice video! They sound pretty much the same as my 4 into 2 Jardines. My Jardines are getting rusty though and I may replace with the Mac. Thanks for posting.
Thank you and you're welcome!  The end of mine (baffle part) are already starting to rust a bit.  I plan on cleaning them up and spraying with rust converter and then high temp black.  It's only surface rust but I want to catch it now.  There was a lot of moisture coming out the exhaust when I first got he bike running so it's not a huge surprise.


Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #59 on: December 04, 2012, 06:10:56 PM »
This version is abbreviated and less annoying than the other one.

Quick Flybys

Offline goldarrow

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Re: '74 550 - Patience and Wisdom Project
« Reply #60 on: December 05, 2012, 04:20:42 PM »
that sounds really great!
Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #61 on: December 10, 2012, 09:19:12 PM »
Suspected some of my rev issues might be cable related. I re-routed my throttle cables correctly (I think) and lubed both. Wow!  What a difference. The controls are now crisp and the throttle return snaps back instantly. It was too late to start the bike tonight but this simple maintenance and adjustment will likely have a positive effect.

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #62 on: March 07, 2013, 08:04:25 PM »
It's been far too long since I've had an opportunity to work on the bike.  I am job-hunting while also awaiting the arrival of our first child in April.  Plenty of other things keeping me busy.

I did have new tires mounted last month but today was the first chance I had to take her for a spin with some decent temperatures and dry roads.  I also had it tagged and insured earlier this week so I'd be ready when the weather broke.  Idle was no problem but on my way to the neighborhood gas pump I noticed loss of power at 40mph.  Something was clearly off but I was able to play with the throttle and clutch enough to get her to the pump.  Topped off the tank with some fresh fuel and headed down a fairly open stretch of road with minimal traffic.

Same issue - acceleration was marginal and crapped out around 40mph.  Revs were still acting funny but were not out of control.  Pulled into a lot to do some basic inspection of air filer, fuel delivery, carb boots, etc.  When I started her up again the revs immediately climbed through 6,7,8k.  I shut down each time.  After playing with the idle screw enough to limp home I was frustrated but determined to get back out today.

First I inspected and cleaned the advance unit with contact cleaner.  Seemed to be functioning fine by hand but figured it couldn't hurt to clean it a bit.  Then turned my attention to the points.  I recently purchased point files and gave it a go.  Cleaned them up a bit and adjusted the gap again.  She sat nicely at idle after fidgeting with the previously adjusted idle screw.  Sure, a wise mechanic will change one thing at a time to determine the actual cause but I was just happy to have some success.

Went for a nice cruise - about 12mi around back roads.  It was only 40 today so even in full gear it wasn't a wonderful day for a spin (East coast damp winter days will chill you to the bone).  Made it up to 80 on a straightaway and although I do not believe power delivery is quite right yet it was far superior to the earlier ride.  It was still fun to get out and scrape up the new rubber a bit.  Already got a bunch of stares and thumbs ups from folks.  The exhaust note is quite nice, too. 

Tomorrow I am going to re-sync the carbs.  I know I did a bench sync last time I cleaned the jets and needle but I cannot recall if I vac sync'd after that.  I have a manual project journal that I will reference but figured I'd go for it tomorrow anyway.

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #63 on: March 09, 2013, 07:36:59 PM »
Cleaned plugs.  Re-sync'd carbs.  Adjusted timing again (strobe). 

I feel stupid admitting this but my choke orientation has been off throughout this project.  Although I've had the carbs apart quite a few times I think the fact that the butterflies are closed when the lever is horizontal threw me off.  A bit counter-intuitive.  However, that explains why she was running much better with the lever in vertical position and completely bogged down when horizontal.  Yes, I am embarrassed but maybe this will help a fellow dunce at some point.

I look forward to a longer ride tomorrow.  I believe my throttle cables need further adjustment - perhaps in the throttle control housing itself.  Maybe I am just used to the throttle response of modern bikes and the squishy feeling is normal?

Will need to pick up a new set of plugs soon, too.  This set has become pretty ugly with all of the fouling that occurred earlier in the project.

Nevertheless, I really enjoy the feeling of riding something I have worked so hard on.  And it's only going to get better...

Offline Mcwilliams570

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Re: '74 550 - Patience and Wisdom Project
« Reply #64 on: March 09, 2013, 07:46:27 PM »
Great to hear Jay now take it for a ride over to my place and lets go get lunch...:)

Matt
My CB550 project http://forums.sohc4.net/index.php?topic=101182.0

Project UFB Cb550 http://forums.sohc4.net/index.php?topic=112143.0

Like a 10 dollar hooker on Friday night its going to be ridden.

1974 cb550
1975 cb550
2005 vmax
2009 vmax-sold
1981 gl500i

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #65 on: March 09, 2013, 08:01:53 PM »
I might be able to swing that soon before the baby arrives. I'll be in touch.

Hope your wife and child are doing great.

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #66 on: March 10, 2013, 03:25:01 PM »
715 days ago I bought this classic in neglected condition.

Today I had my first real ride.  It was satisfying to blast down the highway on something I have worked on for so long. 


Offline Goofaroo

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Re: '74 550 - Patience and Wisdom Project
« Reply #67 on: March 10, 2013, 05:01:37 PM »
Nice job!    I've had my 72 CB500 just a bit longer than you've had yours and I just fired it up a few weeks ago but I still have a lot of work to do.  You found a great bike to start with and did a fine job bringing it back from the dead.

Now that you've had a chance to put a few miles on it, how do you like it?  How does it compare to your SV?  What would you improve?

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #68 on: March 10, 2013, 09:52:42 PM »
Nice job!...   
Now that you've had a chance to put a few miles on it, how do you like it?  How does it compare to your SV?  What would you improve?

Thanks, Goofaroo!

Great question.  Before I make note of any observations I should make it clear that the bike still needs some tuning and this is my first riding experience on a vintage cycle.  Some of these observations may be related to tuning while others are just nature of the classic beast.

It's took me a little while to get used to the power band.  The SV pulls from just about any point in any gear and I think I tend to shift early on that bike.  The CB requires the revs to be wound up a bit (I believe I have read about that before) to really get through the gears.  The only other 4-cyl I've owned was a 919 and that thing pulled on demand - any gear, anytime, anywhere.  Weight aside, we're talking EFI and twice the horsepower....not a fair fight.

I like the look of the stock grips but they feel odd, especially throttle side. I may look into preserving the stockers while replacing them with something with less of a bulge in the palm area.  I want whatever grips I decide on to have a proper look so I'll have to poke around a bit.  Cheap items - worth a shot.

I will need to adjust the rear shocks and eventually replace the fork oil.  However, the bike really rides nicely.  Took my hands off a couple times to see how true she'd stay and it was spot on. Took sizeable bumps like they were nothing. 

I'm sure over time I will learn more about the handling and make improvements (wheel bearings, steering bearings, suspension) but for now it feels just fantastic.

During my test rides last week I noticed that cornering felt really stiff - like I had to really force myself to make turns.  However, I really didn't notice that today.  I think it was a combination of unfamiliarity and caution with slick new tires.  It always takes me a few miles to get used to the feel of a bike so I believe it was in my head more than anything.

I've got a metallic buzz somewhere near the gauges at certain RPM.  Minor issue but it was driving me nuts.  The bike sounded fantastic but that buzz was nagging.  Will do some hunting and sort it out.

My humble SV is 13 years old and has 44k on the clock.  It's a great bike with sufficient power but it doesn't make me smile like the CB.  Sure, I've done my share of work on the SV but it's never been as intense as what I have put into the CB.  They are great stablemates and I look forward to digging into my Nighthawk project to have yet another bike with its own unique qualities. 

Offline Goofaroo

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Re: '74 550 - Patience and Wisdom Project
« Reply #69 on: March 13, 2013, 09:31:14 AM »
Thanks for the report.

You'll definitely have to run the inline four at higher RPM to stay in the meaty part of the power.  It will be completely different from the low end grunt and broad spread of your 650 twin.

It's taken me so long to get mine going because I decided to go ahead and disassemble the entire bike and replace any worn items as I go.  It's coming along and I'm hoping to throw a leg over it in the next few weeks.  It's not very exciting but here's my build thread if you care to take a look-  http://forums.sohc4.net/index.php?topic=80310.0

I knew this would be a long term project for me when I bought it but I've completed a couple of other bikes recently and I'm finally putting slightly more time into this one.  I have a feeling that I am really going to enjoy this bike and it will be one that I keep for a very long time.

By the way,  from the pics it appears that your paint is in very nice shape with just the right amount of patina.  Mine came with the typical rattle can black. 

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #70 on: March 21, 2013, 11:52:55 AM »
It's coming along and I'm hoping to throw a leg over it in the next few weeks.  It's not very exciting but here's my build thread if you care to take a look-  http://forums.sohc4.net/index.php?topic=80310.0

By the way,  from the pics it appears that your paint is in very nice shape with just the right amount of patina.  Mine came with the typical rattle can black. 

Your project is looking good.  You are certainly not going to regret the level of detail you are putting into it.  Excited to watch your progress continue.

Yes, I am fortunate to have original paint with the just the right amount of patina.  A couple chips and scratches here and there but without studying it it looks fantastic.  I wasn't fond of the Boss Maroon at first - I really like the orange and the green - but it's growing on me.  I don't see nearly as many of the Boss Maroon bikes while surfing the net so it feels a bit more exclusive.

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #71 on: March 21, 2013, 11:56:43 AM »
Received my Hondaman Transistorized Ignition yesterday.  Quick turnaround from Mark as I just sent the check last Wednesday!

Hoping to install it in the next couple days.  Module is smaller than I expected and should fit nicely somewhere around the battery box.  Will report back with any tips or questions.

Also need to order a new speedo cable and fresh plugs.

Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #72 on: March 21, 2013, 03:12:23 PM »
New grips arrived the other day.  I was able to preserve the Granturismo style OE's and these slid right on.

Period-appropriate look without the uncomfortable bulge.  Around $16 w/s&h from z1parts.net. 


Offline Jay D.

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Re: '74 550 - Patience and Wisdom Project
« Reply #73 on: March 24, 2013, 07:49:38 PM »
Finally replaced OEM signal flasher with electronic model.  Picked up NAPA EL-13 for about $12. Plug and play, blinkers are now smooth and reliable. .

Offline Two-Bit

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Re: '74 550 - Patience and Wisdom Project
« Reply #74 on: April 04, 2013, 11:09:23 PM »
Suspected some of my rev issues might be cable related. I re-routed my throttle cables correctly (I think) and lubed both. Wow!  What a difference. The controls are now crisp and the throttle return snaps back instantly. It was too late to start the bike tonight but this simple maintenance and adjustment will likely have a positive effect.

I just replaced the right hand starter switch and I have kind of a sticky throttle. I have never had to lube a throttle cable before. How did you do it?