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Messages - Brian Cairns

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1
CB500/550 / Re: 1978 CB550 four
« on: March 11, 2024, 04:40:20 PM »
Quote from: Bryanj on March 11, 2024, 03:04:05 PM
Its really just a pain in the arse job no matter how you do it but holding the quadrant open can make gatting the lower one on


Got it sorted!

Cheers
Brian

2
CB500/550 / Re: 1978 CB550 four
« on: March 11, 2024, 04:39:20 PM »
Quote from: McCabe-Thiele (Ted) on March 11, 2024, 02:56:43 PM
I find it easiest to have the top outer cable out of the slot to start with. Fit the cable end into the hole wrapping the outer cable over the quadrant into it's groove. Then locate the outer cable into the bracket leaving it loose. Then repeat with the lower cable. Fially adjust the two cables.

On my 500 the top cable pulls the throttle open.
Thanks got it sorted!

Cheers

Brian

3
CB500/550 / 1978 CB550 four
« on: March 11, 2024, 02:08:25 PM »
Hi,
I just finished re-conditioning my carbs.......I labelled the throttle cables 'top' and 'bottom'.
The 'top' cable pushes when you open the throttle  whilst the 'bottom'  cable pulls . I have the carbs and air box reinstalled.
I am having difficulty re-fitting cables just wondering is there an easy way to do this? and do I have orientation of cables correct?

Thanks in advance

Brian [ Guests cannot view attachments ]

4
CB500/550 / Re: 1978 CB550 FOUR AIR BOX CONFUSION
« on: February 18, 2024, 02:13:58 PM »
Thanks so much all.....fantastic forum with everyone so helpful.


Thanks all

Brian

5
CB500/550 / Re: 1978 CB550 FOUR AIR BOX CONFUSION
« on: February 18, 2024, 10:55:06 AM »
Quote from: Johnny4428 on February 18, 2024, 10:03:23 AM
Or.
https://www.ebay.co.uk/itm/264760524869?var=564585732561&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338365712&toolid=20006&customid=EB186627424&

great thanks

6
CB500/550 / Re: 1978 CB550 FOUR AIR BOX CONFUSION
« on: February 18, 2024, 09:46:46 AM »
Quote from: DomP on February 18, 2024, 09:39:55 AM
I can't really add much to this except that I have used a 500 airfilter on my 550 as suggested by Bryan and Ken because I was missing g so many of the original parts.  I'm still missing the F model airbox lid but I'm going to make a fibreglass one to fit under my modified seat pan.

I think you'll need to blank off the 'collector box' hose too won't you?

Hi is that the port on part 12? To be honest I am not sure.
Out of interest , how did you blank of the hose ports etx

Brian

7
CB500/550 / Re: 1978 CB550 FOUR AIR BOX CONFUSION
« on: February 18, 2024, 09:19:26 AM »

Quote from: Bryanj on February 17, 2024, 04:45:37 PM
The bolt is part 29 with the nut 15 inside the airbox, at the top 29 and 14.
Part 17 goes to the outlet you marked as 3 and just dangles, it should have a closedish end with a split so you can squeeze it and drain moisture.
Breather goes from top of ending to one of the bottom connections but cant remember which or ehere the other goes.
Yes you can blank the holes, remove the gubbins from inside and use a 500 air filter

Hi Bryan,
I think I have eventually taken you advice ( I think you advised this in a previous post) :)
Just looking a little more advice if you don't mind?
1. Block off ports as circled in yellow?
2. remove gubbins from inside ( marked in yellow )
3. Insert cb 500 air filter.
Is there anymore adjustments to do?
Have you got a year or part number for the air filter? I don't want to buy the wrong one?
Also I have the original PD46C carb.......fully cleaned and set up with original jet sizes ( main 90, slow idle 42). Do you have to make any changes to carb?
Sorry for all the questions...I am new to trying to sort out my own mechanics etc
Cheers
Brian
[ Guests cannot view attachments ]

8
CB500/550 / 1978 CB550 FOUR AIR BOX CONFUSION
« on: February 17, 2024, 04:35:38 PM »
[ Guests cannot view attachments ]

Hi sorry for the hassle but I have confused myself.
I have attached a diagram of air box which I have numbered 1 to 4 in red .
I have a few questions, if I may:
Number 1 ( part 23) . Where does this go to? Can I block this port off ( see number 2)
Number 2 ( part 22) . I think this id the breather for the Crankcase and should be attached to crank case? However I am thinking of doing away with this, allowing crancase breather tube to hang loose and blocking port on airbox.
Number 3: ( part 17) does this tube hang loose from port on part 12?
Number 4 : which bolt goes here? i.e 15,14,3 etc

Apologise for my lack of knowledge !

Thanks in advance
Brian

9
Desperately Seeking!! / Re: 1978 cb 550 k four parts
« on: February 15, 2024, 09:00:03 AM »
Quote from: Gromitdog on February 15, 2024, 06:37:49 AM
Hi Brian
The badge your showing I had some exact transfer ones made by a company in Derby ( can look up details for you ) I think they worked out £12 a pair

Hope that helps you complete your project

Gromitdog

Hi that would be fantastic ! I acually have both badges but one is in poor condition.
If you could send me the detils of your contact that would be great!
Cheers
Brian

10
Desperately Seeking!! / Re: 1978 cb 550 k four parts
« on: February 11, 2024, 11:08:00 AM »
Quote from: Johnny4428 on February 10, 2024, 02:08:20 PM
Brian, it’s up to you but I would consider 45 pilots! Put them in mine and made a considerable difference to starting.

Thanks Johnny,
I just want to try orginal settings 1st. These are the push in type for PD46C carbs.


11
Desperately Seeking!! / Re: 1978 cb 550 k four parts
« on: February 11, 2024, 11:06:10 AM »
Quote from: Bryanj on February 10, 2024, 01:01:07 PM
Pilot jets try sirius concolodated in canada but their website is not easy to use
Thanks Bryan,

I got them on their site however I ordered them weeks ago from an American site and they are stuck in customs in England . I don't think I will ever get them.

12
Desperately Seeking!! / 1978 cb 550 k four parts
« on: February 10, 2024, 12:01:18 PM »
Hi I am looking a side panel badge ( see picture)

and also looking for pilot jet/slow idle ( x4 ) for PD46C carbs . size 42 and they are the push in jets. [ Guests cannot view attachments ]

13
CB500/550 / Re: 1978 USA import CB550 K4 PD46C CARB
« on: January 22, 2024, 11:52:04 AM »
Quote from: McCabe-Thiele (Ted) on January 22, 2024, 11:46:08 AM
I think the pliers are plasic coated looking at the description on Amazon.

Just ordered the pliers from amazon.

Cheers

B

14
CB500/550 / Re: 1978 USA import CB550 K4 PD46C CARB
« on: January 22, 2024, 11:51:14 AM »
Quote from: deltarider on January 22, 2024, 11:40:38 AM
Personally I would have some wood or leather inbetween the jaws of the pliers, when used on vulnerable materials like brass.

Cheers

Brian

15
CB500/550 / Re: 1978 USA import CB550 K4 PD46C CARB
« on: January 22, 2024, 09:45:48 AM »
Quote from: K2-K6 on January 22, 2024, 09:06:52 AM
Probably not worthwhile just for a single job, but these Kniipex twingrip pliers have a "bore" in the nose that's particularly effective in gripping a cylinder https://www.amazon.co.uk/KNIPEX-82-01-200-atramentized/dp/B09FPZPY96/ref=asc_df_B09FPZPY96/?tag=googshopuk-21&linkCode=df0&hvadid=641638718575&hvpos=&hvnetw=g&hvrand=6235607503535841976&hvpone=&hvptwo=&hvqmt=&hvdev=t&hvdvcmdl=&hvlocint=&hvlocphy=9045915&hvtargid=pla-1640846664898&psc=1&mcid=e02a7d1495603634ba0636b3393dbad5&th=1&psc=1

Obviously a limited use here but very effective. Usually when you turn to get the pliers out something has failed, stuck or broken, these really do grip like hell to avoid slipping and seem a good addition to a toolkit.


Cheers

Brian

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