Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: JustcallmeMrT on August 28, 2014, 12:17:25 PM

Title: It has arrived!
Post by: JustcallmeMrT on August 28, 2014, 12:17:25 PM
Finally picked up my 1977 Cb550 super sport. 

The good - minimal surface rust on the frame and swingarm, engine looks in good shape, already has a dual disc conversion, and it came with loads of spare parts (extra set of carbs, braided steel brake lines, original spoked wheels, deeptone exhaust, and the bottom end of the original engine).

The bad - fork tubes are pitted, probably need replacing.  Wiring has been "altered" and it looks like a rats nest.  Front brakes are seized.  Bit worried that the engine has been replaced by PO, but hopefully all is right.  The added front disk setup looks like it needs some proper bolts to make right.  Headers need replacing - far too rusted to work with. 

What do you all think?  Did I do alright for £440?

(http://tapatalk.imageshack.com/v2/14/08/28/26302a9586852a1ebde1c220bb97b524.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/d71ce5eb157fa9a3867b6434f7552fb4.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/345ac2bf46fefbb21f6a2e044ad945ca.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/67803172242439b43c301c22c51461bb.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/7aa2e6fd078629c66112ece4fce97074.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/936f76951922610727b5649d923f6da6.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/a3207ed88374921b932237bda4e3055b.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/0509d86f67a03054ff04129e75cedc54.jpg)(http://tapatalk.imageshack.com/v2/14/08/28/45ac0262531bd5529382e508fcac34a2.jpg)
Title: Re: It has arrived!
Post by: matthewmosse on August 28, 2014, 04:38:04 PM
Looks ok for the money given the extras included, fairly good. Looks like you have a bit of work to do.
Title: Re: It has arrived!
Post by: mickwinf on August 28, 2014, 04:51:03 PM
That's a good buy, worth that just for spares
Title: Re: It has arrived!
Post by: Green1 on August 28, 2014, 04:53:40 PM
I can't find anything that even resembles a bike for that price near me.

Mick
Title: Re: It has arrived!
Post by: SteveD CB500K0 on August 28, 2014, 05:10:23 PM
A 550 with twin disks and Comstars.

There's someone (new) looking for info on fitting them. Maybe you could swap notes.

Steve
Title: Re: It has arrived!
Post by: Trigger on August 28, 2014, 05:43:25 PM
For some reason i had in my head you were getting a CB750 :o
Title: Re: It has arrived!
Post by: mick on August 28, 2014, 06:52:15 PM
That will look better again when it had a good wash  ;) bargain for that amount of money
Title: Re: It has arrived!
Post by: Bitsa (Ralph Wright - RIP) on August 28, 2014, 06:55:12 PM
Agree with all 8 years ago Paid more than that for a dung heap 400/4
Wish you well
Bitsa
Title: Re: It has arrived!
Post by: JustcallmeMrT on August 28, 2014, 07:55:35 PM
Thanks for all the replies guys, glad to know I didn't pay too much for it.  It's my first bike, so a steep learning curve here!
I spent the afternoon starting to tear things down and cleaning.   A few problems have been found, and so here's a few more questions.
Oddjob,  the clocks are still blue, so not too bad with sun fade.  As for the adjusting bolts, on both sides they have been replaced with screws - any idea where to get a set of the original bolts? 

Also, I the second brake was mounted in the exact mirror of the original.  I think I read somewhere that you need to make some slight adjustments  to get the pads to align correctly - can someone help me out on how this is done?

Lastly for today, as I was removing the brakes I noticed that one of the mounting bolts was missing.  As I wiped away some grease I noticed why - the threaded area in the fork has been cracked.  Any suggestions on a remedy, or do I need to find a replacement?

A few pics of the work today.

(http://tapatalk.imageshack.com/v2/14/08/28/424c159299d6e939ac8e5f72cbe67fbc.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/2c8010d8af499db4ec8c9e2d6005e798.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/e2d75ba05d1444952ea5fd9c318bf8eb.jpg)
(http://tapatalk.imageshack.com/v2/14/08/28/1624ec7a82cbf967934d0d35d25cd3eb.jpg)
Title: Re: It has arrived!
Post by: Trigger on August 28, 2014, 08:04:24 PM
I have some fork cases that has the same cracked thread. Not sure if it is the left or right one that has the damage. Will have a look tomorrow and let you know.
Title: Re: It has arrived!
Post by: Bitsa (Ralph Wright - RIP) on August 28, 2014, 08:08:17 PM
Had a suzuki gs550 like that sent it to a firm in Maidstone Kent who straightened the lot and fixed that came back like new for less than a 1 enner
Highly recommended no big deal
Cheers
Bitsa
Title: Re: It has arrived!
Post by: Trigger on August 28, 2014, 08:23:13 PM
Folks can be re-chromed and come out like new.
Title: Re: It has arrived!
Post by: matthewmosse on August 28, 2014, 08:58:26 PM
I had a few of the same issues on a 550 a fair few years ago the cracked brake mounting on the fork lower might be weldable but I just replaced mine as a replacement was cheap at the time though I did ride it like that for a bit. I cannot recall what i did to resolve the disk alignment for twin disking - think I just replaced filed a light champher onto the pads but I did have piles of comstars and disks off a job lot of comstars around so could mix and match a lot. I think nowadays I would look at taking the hub back 2 mm on the disk seat but that requires quite a big lathe as it is not possible to safely dismantle a comstar wheel and rebuild it.
Title: Re: It has arrived!
Post by: JustcallmeMrT on August 28, 2014, 10:11:04 PM
I lied, one more question .  Is this the original brake master or has it been replaced to run the dual front disks?

(http://tapatalk.imageshack.com/v2/14/08/28/af4d867d6891829680e755da139a57e4.jpg)
Title: Re: It has arrived!
Post by: JustcallmeMrT on August 28, 2014, 10:13:06 PM
I have some fork cases that has the same cracked thread. Not sure if it is the left or right one that has the damage. Will have a look tomorrow and let you know.
Thanks Trigger, that'd be much appreciated.
Title: Re: It has arrived!
Post by: JustcallmeMrT on August 28, 2014, 10:14:15 PM
I had a few of the same issues on a 550 a fair few years ago the cracked brake mounting on the fork lower might be weldable but I just replaced mine as a replacement was cheap at the time though I did ride it like that for a bit. I cannot recall what i did to resolve the disk alignment for twin disking - think I just replaced filed a light champher onto the pads but I did have piles of comstars and disks off a job lot of comstars around so could mix and match a lot. I think nowadays I would look at taking the hub back 2 mm on the disk seat but that requires quite a big lathe as it is not possible to safely dismantle a comstar wheel and rebuild it.
I'm intending to put the original spoked wheels back on.  Would it be the same procedure?
Title: Re: It has arrived!
Post by: simonster on August 28, 2014, 10:17:14 PM
If you intend to try and repair the fork case mounting lug, you should check out the Laser aluminium repair system demonstration video on you tube. It brazes with aluminium at less than 300 degrees and it has twice the strength and no nasty flux required. It works a treat on anything non ferrous and its well worth the £25 for five rods. I've tried standard aluminium brazing rods and the laser rods really do the business. Anyone with a mapp or butane torch could work with them for cracks, holes stripped thread on all ally components. I've just used them for brazing up a hand made ally battery mount on my cafe conversion and the join is stronger than the ally pieces. It should work for your lug.
Title: Re: It has arrived!
Post by: JustcallmeMrT on August 28, 2014, 10:34:13 PM
If you intend to try and repair the fork case mounting lug, you should check out the Laser aluminium repair system demonstration video on you tube. It brazes with aluminium at less than 300 degrees and it has twice the strength and no nasty flux required. It works a treat on anything non ferrous and its well worth the £25 for five rods. I've tried standard aluminium brazing rods and the laser rods really do the business. Anyone with a mapp or butane torch could work with them for cracks, holes stripped thread on all ally components. I've just used them for brazing up a hand made ally battery mount on my cafe conversion and the join is stronger than the ally pieces. It should work for your lug.
Thanks Simonster,  will have a look.  Might be a relatively easy fix.
Title: Re: It has arrived!
Post by: tom400f on August 29, 2014, 09:12:07 AM
I lied, one more question .  Is this the original brake master or has it been replaced to run the dual front disks?

(http://tapatalk.imageshack.com/v2/14/08/28/af4d867d6891829680e755da139a57e4.jpg)

Looks original to me. There must be a splitter presumably where the union with the lower hose(s) is.

Whether it's up to the job I couldn't say.
Title: Re: It has arrived!
Post by: JustcallmeMrT on August 29, 2014, 09:51:45 AM
I lied, one more question .  Is this the original brake master or has it been replaced to run the dual front disks?

(http://tapatalk.imageshack.com/v2/14/08/28/af4d867d6891829680e755da139a57e4.jpg)

Looks original to me. There must be a splitter presumably where the union with the lower hose(s) is.

Whether it's up to the job I couldn't say.
Yep, the splitter was on the lower hose.  Overall the whole system looked pretty rough.  I can get a brand new aftermarket Goldwing GL1000 master cylinder setup from DSS for £35, so I think I'll do that instead of rebuilding what I have, as I don't think the original can push enough fluid.
Title: Re: It has arrived!
Post by: Trigger on August 30, 2014, 04:16:26 PM
Just had a look in the store and I have a left fork case in good condition if you require one. The right one had a snapped bolt that someone made a mess of trying to drill out.
Title: Re: It has arrived!
Post by: Johnwebley on August 30, 2014, 04:34:54 PM
difficult to say,you need to check the bore size,externally they look the same
Title: Re: It has arrived!
Post by: JustcallmeMrT on August 31, 2014, 09:35:08 PM
Just had a look in the store and I have a left fork case in good condition if you require one. The right one had a snapped bolt that someone made a mess of trying to drill out.
Ok, about to show just how new I am to this.... when you say left, do you mean left as seen by the rider? 
If so, it's the same side as my good case.
I looked into the laser aluminum brazing rods, they look pretty good, might give a try repairing with those.
Any thoughts?
Title: Re: It has arrived!
Post by: Trigger on August 31, 2014, 09:49:01 PM
Left is your left hand as you sit on the bike. I have a good left fork case when you are requiring a right one. Am i right?
Title: Re: It has arrived!
Post by: matthewmosse on August 31, 2014, 09:50:15 PM
Pretty sure on my bike it was the left side one that lost a big chunck. I would be wary of welding on brake mounts without x ray to check it is good right to the root, maybe over the top but a small crack at the root of a welded joint can proporgate and grow -I never did welding on alloy but when learning welding at collage, destructive testing of welds really made you realise how a tiny flaw in the form of poor root fusion could grow and snap a weld that was thicker than the parent material. I know nothing of these low temp alloy fusion methods so am happy to stand corrected.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 01, 2014, 01:56:25 PM
Left is your left hand as you sit on the bike. I have a good left fork case when you are requiring a right one. Am i right?
Yes, my left one is the cracked one, it's the right fork case I need.  Maybe ebay will prove useful.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 01, 2014, 01:58:04 PM
Pretty sure on my bike it was the left side one that lost a big chunck. I would be wary of welding on brake mounts without x ray to check it is good right to the root, maybe over the top but a small crack at the root of a welded joint can proporgate and grow -I never did welding on alloy but when learning welding at collage, destructive testing of welds really made you realise how a tiny flaw in the form of poor root fusion could grow and snap a weld that was thicker than the parent material. I know nothing of these low temp alloy fusion methods so am happy to stand corrected.
I'll definitely have to look into it further.  I have no desire for a bodged braking system.  Thanks for the insight!

Any chance you still have the good right fork?
Title: Re: It has arrived!
Post by: Bryanj on September 01, 2014, 02:42:53 PM
Way back when I saw lots of bikes with that sort of crack, as long as the big bolt and the other small bolt are good a repair will be fine
Title: Re: It has arrived!
Post by: UK Pete on September 01, 2014, 06:08:54 PM
Great bike Mr T ,  a real bargin by the looks of it ,  good luck with restoration
pete
Title: Re: It has arrived!
Post by: matthewmosse on September 01, 2014, 07:38:58 PM
Apologies, I just looked again and its the small bolt hole you have fractured, probably be fine with alloy welding, for some reason I had it in my head it was the big un that had cracked, probably because on mine it was the big bolt lug. I am bound to still have the forks in question and if needed can dig them out and sell you the spare lower leg provinding it passes muster, ie no stripped threads etc. One word of warning though, with so many project machines I am inclined to take an age to find bits or even forget why I went out to the shed and get distracted by rusty things so may need reminding.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 01, 2014, 10:01:43 PM
Apologies, I just looked again and its the small bolt hole you have fractured, probably be fine with alloy welding, for some reason I had it in my head it was the big un that had cracked, probably because on mine it was the big bolt lug. I am bound to still have the forks in question and if needed can dig them out and sell you the spare lower leg provinding it passes muster, ie no stripped threads etc. One word of warning though, with so many project machines I am inclined to take an age to find bits or even forget why I went out to the shed and get distracted by rusty things so may need reminding.
You guys are amazing with all the help and offers.  I'll keep you posted as the build progesses - I'm holding fire on new parts until I know how much the engine is going to cost me. 
Title: Re: It has arrived!
Post by: Trigger on September 01, 2014, 10:10:34 PM
Engines can be a open cheque book. Just do not get carried away with the finish. Polishing and new chrome can cost more than the engine parts.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 04, 2014, 10:24:36 AM
Does anyone know the thread size for the brake bleeders?  Looking to buy speed bleeders and they've got multiple sizes....
Title: Re: It has arrived!
Post by: Trigger on September 04, 2014, 11:20:52 AM
7mm. You do not need a speed bleeding kit. I never have any problems with these brakes. People for get that it is a system and must be treated as one.
Title: Re: It has arrived!
Post by: bike-pusher on September 04, 2014, 11:44:10 AM
I'd ditch the Comstars too.

I remember twinning the discs on my old SOHC CB750, back in the day.  You need longer bolts to pass through both discs - Gold Wing GL1000 units fit.  And then there's the speedo drive - the CB550 tin cover was necessary on the the 750.

The master cylinder will not flow enough fluid. Trust me on this.

You might like to know that the CB550 shares the back wheel with the CB500T.  However, for some extraordinary reason there are two different types of brake plate, and you need the spacers as well.  I shoved a CB500T rear wheel into my last CB550 because the original had cracked.

And that's a real one to watch for - the cast iron liner is very thin and can crack if it gets corroded.  Then you have an oval rear drum.  I imagine a good engineering workshop would be able to put in a new cast iron liner and machine it to fit, but it's easier to replace the whole wheel.
Title: Re: It has arrived!
Post by: matthewmosse on September 04, 2014, 02:07:12 PM
 Brake rear liner is a perfectly do able job, if you have a lathe and patience, I have done them for myself but there is a guy who does thrm professionally at a price I wouldn't hesitate to pay. The different back plates issue is one to watch out for across any of the cb500 and 550 bikes, the change seems to have been arbitary, and owners may have mixed and matched since. I had comstars on one of my 550k3s and thought they looked pretty neat, I got away with stock master as far as I know though all the advise is to upgrade, maybe I had a upgraded one? I called that bike 'box of cogs' as that was the condition I bought it in, £200 for a van load of cb bits, mostly cb250N but a complete 550, with several engines but every engine was in bits. If you ever wondered what a mess a canchain can make, think along the lines of only being able to use the selector dog shafts and cluch plus cover out of a whole engine. I think the pistons would have been ok if the damp hadn't got to them and sized the rings in solid. 
Regardds bleeding the brakes, my preffered method is a bit of clear pipe, comes with most bike batteries for free and a big seringe to squirt fluid up to the master cylinder from below, I had several that would not bleed the conventional way , this way got it moving, then I suck the fluid back down from the master with the seringe until it runs clean and free of air bubbles.
Title: Re: It has arrived!
Post by: tom400f on September 04, 2014, 02:47:57 PM
Regardds bleeding the brakes, my preffered method is a bit of clear pipe, comes with most bike batteries for free and a big seringe to squirt fluid up to the master cylinder from below, I had several that would not bleed the conventional way , this way got it moving, then I suck the fluid back down from the master with the seringe until it runs clean and free of air bubbles.

Exactly this. How I did it and takes no time. Firm hydraulic action thereafter.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 04, 2014, 04:47:29 PM
Thanks again for all the tips guys, as I said before, I'm totally new at this so all advice is welcome. 
The original bleed valves seem pretty corroded, so I figured if I had to replace that I'd go the speed bleeder route as I'd read a number of posts where they were recommended.  But, if originals work fine with the methods you give then I'll stay original.

The comstar wheels are going to go.  I have the original spoked wheels and like the look much better.

Title: Re: It has arrived!
Post by: Bryanj on September 05, 2014, 07:00:09 AM
Before trying to undo the bleeders heat the caliper with a plumbers blowtorch and spay on wd40 or similar (don't stand too close due to lots of smoke and maybe small flames Also use a Tee bar on a deep socket to get an even "Turn"
Title: Re: It has arrived!
Post by: bike-pusher on September 05, 2014, 07:23:26 AM
What he said.  I always heat up the caliper before trying to undo those tiny Honda bleed nipples.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 09, 2014, 06:19:14 PM
Ok, next set of questions has to do with the carbs.  The PO mentioned that when he swapped the engine, he also put on 'new carbs', but didn't know if they were same as originals or not.  So, how do I ide tidy which carbs I've got?  Pictures below.(http://tapatalk.imageshack.com/v2/14/09/09/1334a88629b61724757e02e08c585565.jpg)(http://tapatalk.imageshack.com/v2/14/09/09/412af1d821361cb08b65d5bf4143f0b1.jpg)(http://tapatalk.imageshack.com/v2/14/09/09/d68db278f590fdd8824b72e9e5bed11f.jpg)
Title: Re: It has arrived!
Post by: SteveD CB500K0 on September 09, 2014, 06:33:53 PM
Easy.
You have 069A carbs!
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 09, 2014, 06:43:04 PM
Ahhhh!   Can you tell I'm new? 
Title: Re: It has arrived!
Post by: SteveD CB500K0 on September 09, 2014, 08:02:32 PM
I'd love to expand, but as a 500 guy, I only know about 627s.

We do talk a strange language don't we?
Title: Re: It has arrived!
Post by: Trigger on September 09, 2014, 09:41:54 PM
Where is the bowls from the carbs???
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 09, 2014, 09:49:58 PM
I've spent 3 weeks badgering the PO for those.  They are now safely in my possession and ready for a good clean!
Title: Re: It has arrived!
Post by: Trigger on September 09, 2014, 09:52:12 PM
Did you get the lever springs off him as well???
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 09, 2014, 09:59:55 PM
Indeed I did.  All parts seem to be there.  I can't say I wasn't worried.  Now all I still need to get from him is the original rear spoked wheel.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 09, 2014, 10:04:21 PM
(http://tapatalk.imageshack.com/v2/14/09/09/51c418757c4f92572070a93c2a686aaf.jpg)

Not the nicest condition but I'm optimistic.
Title: Re: It has arrived!
Post by: Trigger on September 09, 2014, 10:07:17 PM
They will clean up nicely in a ultrasonic cleaner.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 09, 2014, 10:12:07 PM
I have access to an small ultrasonic cleaning tank at work.  Any suggestions as to what type of cleaning fluid I should use to get these clean? 
Title: Re: It has arrived!
Post by: Trigger on September 09, 2014, 10:19:02 PM
Just had a look at the one i use and it just says Ultrasonic Engine Part. Aluminum safe/ use between 50-80 degrees.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 09, 2014, 10:30:06 PM
There is one on ebay with the same description, will give it a try.
Title: Re: It has arrived!
Post by: Trigger on September 09, 2014, 10:36:25 PM
I get mine from Woburn chemicals that is the nearest to me.
Title: Re: It has arrived!
Post by: tom400f on September 10, 2014, 09:09:31 AM
Indeed I did.  All parts seem to be there.  I can't say I wasn't worried.  Now all I still need to get from him is the original rear spoked wheel.

Are you paying for the bike in installments as well ?
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 10, 2014, 07:29:18 PM
Indeed I did.  All parts seem to be there.  I can't say I wasn't worried.  Now all I still need to get from him is the original rear spoked wheel.

Are you paying for the bike in installments as well ?
I wish I were....
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 12, 2014, 11:25:44 PM
Can anyone point me in the direction of a 'how to' for removing individual carbs from the assembly?  There looks to be more than just screws and bolts involved so figure I should do some homework.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 13, 2014, 09:22:00 PM
Finally, some before and after shots!
(http://tapatalk.imageshack.com/v2/14/09/13/73d749c1c2b8822db8cced3e4d67f70b.jpg)(http://tapatalk.imageshack.com/v2/14/09/13/b7d8c833575cf6bfe1cb875d1d8b8026.jpg)(http://tapatalk.imageshack.com/v2/14/09/13/50a959ddb67fb730cd847eb0059bdbdd.jpg)(http://tapatalk.imageshack.com/v2/14/09/13/a240bdb91a15657d5021ef1ff1a2cbab.jpg)(http://tapatalk.imageshack.com/v2/14/09/13/d84adbd24ac0440555cd3da7dc9d4d12.jpg)
Title: Re: It has arrived!
Post by: Trigger on September 13, 2014, 09:40:38 PM
You should of taken the tubes out before you put them in the tank. Why would you want to take the bank apart??
Title: Re: It has arrived!
Post by: matthewmosse on September 13, 2014, 09:41:42 PM
Inpressive. carbs are a swine to do, fiddly little things.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 13, 2014, 09:46:40 PM
You should of taken the tubes out before you put them in the tank. Why would you want to take the bank apart??
Turns out the ultrasonic tank at work wasn't big enough to take the whole bank, so I was considering doing them singly. Instead I opted to soak them in a bucket of carb cleaning solution and use lots of elbow grease.  Not too bad so far.
Title: Re: It has arrived!
Post by: Trigger on September 13, 2014, 09:53:45 PM
I would not advise someone to take these apart unless they know what they are getting into. There are so, so many little parts to them. But, you can get them apart to change the 0'rings in the T pipes by taking the 8 big cross head screws out of the big alloy rail that holds them together.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 13, 2014, 09:58:06 PM
I would not advise someone to take these apart unless they know what they are getting into. There are so, so many little parts to them. But, you can get them apart to change the 0'rings in the T pipes by taking the 8 big cross head screws out of the big alloy rail that holds them together.
Ok, now more ignorant questions - what is the T pipe?
Title: Re: It has arrived!
Post by: Trigger on September 13, 2014, 10:05:21 PM
A T pipe is the part that feeds fuel to the carbs. Look at the carbs as a set of 2, and the two together make the four. The carbs need to be fueled so between 1&2-3&4 you have a T pipe. If you look between 1&2 you should see a pipe that the fuel line connects to. On 3&4 it will have the same pipe.
Bloody hell, this is hard to explain.
Title: Re: It has arrived!
Post by: Trigger on September 13, 2014, 10:17:56 PM
Number 1, which is the 4x 0'rings go on to the T pipe>>>  http://www.cmsnl.com/honda-cb550f2-super-sport-550-four-1977-england_model17121/partslist/E17-1.html#res
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 13, 2014, 11:55:51 PM
Ok, I see what you're talking about.  So if I remove that cast plate I can access those?  And where would I get replacements?  Would they be part of the carb rebuild kit I just got from DSS?
Title: Re: It has arrived!
Post by: Trigger on September 14, 2014, 12:20:16 AM
Should be in the kit but, i have never got one from DSS. I always get from Japan or the Dutch carb guru.
Yes, if you remove those 8 screws the cast plate (as you have called it) will swing up and all the carb body's will be lose enough to change the O'rings on the T pipe's.
It also maybe worth paying someone to sonic clean the bank in one piece.   
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 14, 2014, 08:37:22 AM
Should be in the kit but, i have never got one from DSS. I always get from Japan or the Dutch carb guru.
Yes, if you remove those 8 screws the cast plate (as you have called it) will swing up and all the carb body's will be lose enough to change the O'rings on the T pipe's.
It also maybe worth paying someone to sonic clean the bank in one piece.
What about the short rubber tubes running between the carbs - do those need replacing?
Title: Re: It has arrived!
Post by: Trigger on September 14, 2014, 02:19:40 PM
I think you are on about the vent tubes. You just cut a bit of hose for those.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 14, 2014, 03:38:57 PM
I think you are on about the vent tubes. You just cut a bit of hose for those.
Is that these?(http://tapatalk.imageshack.com/v2/14/09/14/63f59bfb256b24af3a89e3a5048c83b6.jpg)

Also, how advisable is it to still have those carbs ultrasonically cleaned?  Well worth the £40 it'll cost me?
Title: Re: It has arrived!
Post by: Trigger on September 14, 2014, 05:29:44 PM
Well worth the money. Need to be stripped down a bit more before sonic clean them. Yep, those are the tubes.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 14, 2014, 06:27:40 PM
Well worth the money. Need to be stripped down a bit more before sonic clean them. Yep, those are the tubes.
Ok, will get it done this week.  I pulled out the needle jets today, what else should I remove before sending them to be cleaned?
Title: Re: It has arrived!
Post by: Trigger on September 14, 2014, 06:36:18 PM
Sorry but, i can not see what stage you are at. From your last picture you need to take out those air screws. Did you get the tubes out?
If you need a new screw kit try TSS Fasteners. Tina is a diamond. She may not list a kit for your carbs but, she has one because i work with this company to provide them with fasteners sizes for all CB & CD motorcycles.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 14, 2014, 07:28:28 PM
Sorry but, i can not see what stage you are at. From your last picture you need to take out those air screws. Did you get the tubes out?
If you need a new screw kit try TSS Fasteners. Tina is a diamond. She may not list a kit for your carbs but, she has one because i work with this company to provide them with fasteners sizes for all CB & CD motorcycles.
I have gone as far as the haynes manual will take me.  I've removed all the jets, but have not removed the rubber tubes in the photo of my last post or the T fittings that you mentioned.  I've also not removed any air screws or anything of that nature.... don't even know where those are?! 
*sigh*  I'm so new....  Thanks for tolerating the ignorance and for all the help so far!
Title: Re: It has arrived!
Post by: Trigger on September 14, 2014, 07:43:40 PM
In your last picture you can see the air screw. It is too the right of the T pipe if you look at the picture. It has a brass head and when you remove it there will be or should be a spring. One per carb.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 14, 2014, 07:48:39 PM
In your last picture you can see the air screw. It is too the right of the T pipe if you look at the picture. It has a brass head and when you remove it there will be or should be a spring. One per carb.
Got it.  So, I should remove the air screws, the T pipes and those tubes from between the carbs, anything else?
Title: Re: It has arrived!
Post by: Trigger on September 14, 2014, 07:57:12 PM
Do you have the brass tubes out??? They will have little holes down the sides.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 14, 2014, 07:58:18 PM
Do you have the brass tubes out??? They will have little holes down the sides.
Yep, got them out.
Title: Re: It has arrived!
Post by: Trigger on September 14, 2014, 08:03:02 PM
The brass screws from the float bowls??? If that is it they should be ready for a dip. Take the bank of carbs, the bowls, the tops and everything you have removed to be cleaned. Then all you have to do is put them back together. Polish the bowls and tops. And set the float height which is 22mm on those.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 14, 2014, 08:03:57 PM
The brass screws from the float bowls??? If that is it they should be ready for a dip. Take the bank of carbs, the bowls, the tops and everything you have removed to be cleaned. Then all you have to do is put them back together. Polish the bowls and tops. And set the float height which is 22mm on those.
Thanks Trigger,  you've been a huge help!
Title: Re: It has arrived!
Post by: Trigger on September 14, 2014, 08:05:36 PM
I should of said, send me the carbs with the fitting kit and £100 and i will do the rest ;)
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 17, 2014, 07:47:19 PM
I would not advise someone to take these apart unless they know what they are getting into. There are so, so many little parts to them. But, you can get them apart to change the 0'rings in the T pipes by taking the 8 big cross head screws out of the big alloy rail that holds them together.
Another carb question.  Measuring the o-rings on the T pipe, looks like they're 12mm OD, 8mm ID and 2mm thick.  Is this right?  Would a set of nitrile rings of this size be the correct replacement?
Title: Re: It has arrived!
Post by: Trigger on September 17, 2014, 08:49:22 PM
You should of got the O'rings in the carb kit. Are you saying that DSS did not put them in???
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 17, 2014, 09:00:57 PM
As far as I can see, they are not there... All the bits for each individual carb, but not for the T - tubes between them.
Title: Re: It has arrived!
Post by: Trigger on September 17, 2014, 09:08:21 PM
I am not in the UK at the moment so can not give you the right measurements. I use Viton O'rings but, you will need something that is fuel resistant. Just looked up a carb kit from Japan and it comes with the O'rings>>     http://www.ebay.co.uk/itm/74-76-HONDA-CB550K-CB550F-CARB-REPAIR-KIT-SET-OF-4-REPAIR-KITS-INCLUDE-CI1220-/251460221180?pt=UK_Motorcycle_Parts_13&hash=item3a8c3278fc

Does the carb kit from DSS not look like this?
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 17, 2014, 09:13:36 PM
I am not in the UK at the moment so can not give you the right measurements. I use Viton O'rings but, you will need something that is fuel resistant. Just looked up a carb kit from Japan and it comes with the O'rings>>     http://www.ebay.co.uk/itm/74-76-HONDA-CB550K-CB550F-CARB-REPAIR-KIT-SET-OF-4-REPAIR-KITS-INCLUDE-CI1220-/251460221180?pt=UK_Motorcycle_Parts_13&hash=item3a8c3278fc

Does the carb kit from DSS not look like this?
Nope, missing some of those O-rings.

http://www.davidsilverspares.co.uk/graphics/parts/PCRK%20CB550F_large.jpg
Title: Re: It has arrived!
Post by: Trigger on September 17, 2014, 09:18:14 PM
I always get mine from>>> http://www.ebay.co.uk/itm/CB500-CB550-4-Four-carb-revision-O-ring-set-VITON-rubber-for-4-carbs-/121429834412?pt=UK_Motorcycle_Parts_13&hash=item1c45c83
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 17, 2014, 09:30:39 PM
I am not in the UK at the moment so can not give you the right measurements. I use Viton O'rings but, you will need something that is fuel resistant. Just looked up a carb kit from Japan and it comes with the O'rings>>     http://www.ebay.co.uk/itm/74-76-HONDA-CB550K-CB550F-CARB-REPAIR-KIT-SET-OF-4-REPAIR-KITS-INCLUDE-CI1220-/251460221180?pt=UK_Motorcycle_Parts_13&hash=item3a8c3278fc

Does the carb kit from DSS not look like this?
Good god, that kit from Japan has more bits and is half the price!  Half a mind to return the DSS kits and order those in the link you sent.
Title: Re: It has arrived!
Post by: Trigger on September 17, 2014, 09:37:21 PM
If you rush, it will cost you more. Take your time ;)
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 17, 2014, 09:40:42 PM
If you rush, it will cost you more. Take your time ;)
*sigh*  Seems to be true.  Picking your brain seems to help too!  Why does that kit from Japan have so many different jets in it for each carb?  No indication of what they are in the description.  Any ideas?
Title: Re: It has arrived!
Post by: Trigger on September 17, 2014, 09:50:26 PM
A lot of members use Cruzinmage but, you must keep the value of the order down to avoid custom charges. They are only showing a picture. You will get a full carb repair kit from them.
Title: It has arrived!
Post by: JamesH on September 18, 2014, 06:37:30 AM
A lot of members use Cruzinmage but, you must keep the value of the order down to avoid custom charges. They are only showing a picture. You will get a full carb repair kit from them.
I've used 5+ sets of the cruzinimage carb kits for my 750's - generally good but be very careful about using the pilot jets supplied in the kits. I've had several fail (ie shear) on installation - and trust me that wasn't  down to me being heavy handed. I always buy new keihin pilot jets to supplement the kit. James.
Title: Re: It has arrived!
Post by: AshimotoK0 on September 18, 2014, 06:49:59 AM
If you rush, it will cost you more. Take your time ;)
*sigh*  Seems to be true.  Picking your brain seems to help too!  Why does that kit from Japan have so many different jets in it for each carb?  No indication of what they are in the description.  Any ideas?

It's great that you have come on here MrT asking loads of sensible questions. Just what these forums are all about. You will soak it all up and then become one of the knowledgeable guys on your model of bike and pass it onto to Newbie's. It perpetuates so that there is always going to be somebody on here with the 'knowledge' . I  knew F all about the CB750 in 2008 but loads about the 400/4. You soak up all of the info from various sites/individuals  then feel that if you ever went on Mastermind your specialist subject would be "................"  . You guessed it! Keep em coming!

Cheers .. Ash
Title: Re: It has arrived!
Post by: Trigger on September 18, 2014, 08:19:59 AM
James, i have found that a little Vaseline helps the parts to fit a lot better. I always used tap2 until the day i ran out. Found a old jar of vaseline as a replacement for tap2 worked a treat.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 18, 2014, 12:18:47 PM
A lot of members use Cruzinmage but, you must keep the value of the order down to avoid custom charges. They are only showing a picture. You will get a full carb repair kit from them.
Ok, just need a confirmation here - the eBay ad says up to 1976, so I asked Cruzinmage if this would fit a 77 cb550f2 and he says no, and that he doesn't yet have a kit that fits this year/model.  Is he playing it safe and you know the kit will work, or will I have to stick with that DSS kit I bought?
Title: Re: It has arrived!
Post by: Trigger on September 18, 2014, 05:27:08 PM
He is playing safe because the carb for the 1976 CB550 F1 is the same carb for the F2. It is only the CB550K3 that is different. It is always better to give Cruzinmage the carb number.
DSS is a member of this forum, so i do not think he will give you a refund because you have found them cheaper ;) You only have some 0'rings needed so just order the Viton 0'rings. There are many company's selling Viton on ebay.
Title: Re: It has arrived!
Post by: Trigger on September 18, 2014, 05:32:26 PM
Just been looking at the pictures of you bike you posted and it is a bit of a bitsa. It has a F2 tank but, K3 side panels. Are you sure that this is a F2 or is it just the frame is stamped F2?
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 18, 2014, 05:36:04 PM
Not entirely sure, I know it has had an engine swap - I'll post the numbers later and hopefully we can figure it out. 
Title: Re: It has arrived!
Post by: Trigger on September 18, 2014, 05:51:46 PM
The F1 and F2 engines are the same unit. It will be only the numbers that will be different. Unless it is a 500 unit.
Here is a model guide, but this is USA>>> http://www.sohc4.net/cb550-model-guide/
Title: Re: It has arrived!
Post by: JamesH on September 18, 2014, 07:41:43 PM

James, i have found that a little Vaseline helps the parts to fit a lot better. I always used tap2 until the day i ran out. Found a old jar of vaseline as a replacement for tap2 worked a treat.
Same here Graham - vaseline is the way forward. I think it was a QC issue with the pilot jets in the kits i was shipped. Basically the thread pitch seemed to be very slightly off and resulted in too much shear stress on effectively a hollow tube. Anyway, just my experience - given the incredibly tight tolerances on the pj's in particular i've always felt more comfortable with oem keihin parts. James
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 19, 2014, 11:08:43 PM
Just been looking at the pictures of you bike you posted and it is a bit of a bitsa. It has a F2 tank but, K3 side panels. Are you sure that this is a F2 or is it just the frame is stamped F2?
(http://tapatalk.imageshack.com/v2/14/09/19/dec08a537e32c5a2c8db6c23218cbbc6.jpg)(http://tapatalk.imageshack.com/v2/14/09/19/ef3ab7bf898c5cf18d9b1de9eb09c457.jpg)

So what does it all mean? 
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 19, 2014, 11:13:08 PM
If I'm reading that website right, it's a 1977 frame with a 1976 engine?
Title: Re: It has arrived!
Post by: Trigger on September 20, 2014, 12:27:53 PM
Is this bike listed as a import on the V5?
The frame is a F2 but, i have been looking at the engine number which could be a late 1975 to 1976. Can't pinpoint the number to a country.
All his doesn't really matter as the F1 & F2 are the same engine.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 20, 2014, 09:32:23 PM
Nope, not an import.  Glad to know that it's still a 550.

More progress today.  I used electrolysis to de - rust my tank last week, and today chemically etched and lined it.  I'm hoping that I'll finish rebuilding the carbs thus week, then on with the new bits and ready for the first test start next weekend.

Here's my rundown prior to first start:
Carb rebuild.
Oil change and new oil filter
New air filter
Replaced perished connectors between air box and carb
New fuel strainer (old one was broken off)
New plugs
Tank de - rusted and lined.

Anything else you guys would recommend before I try to press the starter button?
Title: Re: It has arrived!
Post by: Trigger on September 20, 2014, 10:19:42 PM
Hold on. I would not just press the button. Try kicking it until the oil light goes out. Remove the out side tappet covers to make sure that the oil is getting to the top end. Thinking about it have you checked the tappets?
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 20, 2014, 10:32:00 PM
Hold on. I would not just press the button. Try kicking it until the oil light goes out. Remove the out side tappet covers to make sure that the oil is getting to the top end. Thinking about it have you checked the tappets?
Haven't even a clue what a tappet is....    Here comes another google search...
Title: Re: It has arrived!
Post by: Trigger on September 20, 2014, 10:37:10 PM
You can watch a video on it>>>  https://www.youtube.com/watch?v=bLw6Av07wik
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 21, 2014, 09:06:32 AM
Feeler gauges now ordered on ebay, tappet adjustment will be checked before kickover.   
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 21, 2014, 10:40:47 PM
New question - will a cb750 points cover fit my 550 f2?
http://pages.ebay.com/motors/link/?nav=item.view&id=161315331524&alt=web
Title: Re: It has arrived!
Post by: Trigger on September 21, 2014, 10:49:08 PM
Nope. A 400/4 will but not CB750.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 21, 2014, 10:51:35 PM
Nuts.  Know anyone who makes one for the 550?  Mine is pretty pitted.
Title: Re: It has arrived!
Post by: Trigger on September 21, 2014, 10:54:59 PM
Not with SOHC on it. Only Honda on it.
Title: Re: It has arrived!
Post by: tom400f on September 21, 2014, 11:23:33 PM
http://www.davidsilverspares.co.uk/CB550F1-SUPER-SPORT-1976/part_5019/

The DSS one  (more expensive)

PS this is the best thread ever  :D
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 22, 2014, 06:53:08 AM
Not with SOHC on it. Only Honda on it.
Honda is fine. 
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 22, 2014, 06:54:40 AM
http://www.davidsilverspares.co.uk/CB550F1-SUPER-SPORT-1976/part_5019/

The DSS one  (more expensive)

PS this is the best thread ever  :D
Thanks Tom, trying to muddle my way to a working machine.  You guys have been awesome!
Title: Re: It has arrived!
Post by: Trigger on September 22, 2014, 03:22:49 PM
I have a smoked plastic one for sale. The cafe boys use them, so at night time it shows off the sparks from the points ;D.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 22, 2014, 03:31:44 PM
I have a smoked plastic one for sale. The cafe boys use them, so at night time it shows off the sparks from the points ;D.
I'm curious... got any pics?
Title: Re: It has arrived!
Post by: Trigger on September 22, 2014, 03:34:32 PM
Send your email address to me on PM and i will send some pictures.
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 22, 2014, 03:38:05 PM
Send your email address to me on PM and i will send some pictures.
Done.
Title: Re: It has arrived!
Post by: Bitsa (Ralph Wright - RIP) on September 22, 2014, 06:46:35 PM
Can we start a new topic takes me forever to scroll through this lot
Cheers
Bitsa
Title: Re: It has arrived!
Post by: JustcallmeMrT on September 22, 2014, 07:33:31 PM
Can we start a new topic takes me forever to scroll through this lot
Cheers
Bitsa
Fair enough, I'll post new questions as new topics.... but be forewarned, there will be many topics!
Title: Re: It has arrived!
Post by: Bitsa (Ralph Wright - RIP) on September 22, 2014, 07:36:40 PM
not a problem mate more than happy to help if I can but Bryan,Trig etc are the guys but I do like to read your posts
Cheers
Bitsa
Title: Re: It has arrived!
Post by: tom400f on September 23, 2014, 09:38:29 AM
Can we start a new topic takes me forever to scroll through this lot
Cheers
Bitsa

Bitsa - I use the link at the top Show unread posts since last visit. (http://www.sohc.co.uk/index.php?action=unread) Then click on the "new" icon and you arrive at the next exciting installment.

Occasionally it gets confused and says there are "No unread topics found since your last visit."
in which case try Click here to try all unread topics. (http://www.sohc.co.uk/index.php?action=unread;all;start=0).

No scrolling and nothing gets missed....  ;)
Title: Re: It has arrived!
Post by: Bitsa (Ralph Wright - RIP) on September 23, 2014, 11:37:41 AM
Cheers Tom
Bitsa
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