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Messages - Towsejames

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1
CB500/550 / Re: 069a carb set up advice
« on: July 27, 2026, 10:26:16 PM »
I prefer to manually sync them by loosening off the idle screw so it’s not touching. Now set all the slides so they just start to lift, as small a gap as possible. Now adjust the idle screw until they just start to move, check they all look just the same. Fit and then adjust the idle screw when the engines running.
I like the sound of this method. Thank you I’ll pop the carbs off again and set them like this.


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2
CB500/550 / 069a carb set up advice
« on: July 26, 2026, 05:29:39 PM »
Hi again,

Just a quick one. So I’ve recently rebuilt a set of 069a carbs following the video that classic octane posted. All is well and the bike runs nice and smooth, I bench synced the carbs using a drill bit to level each slide to each other.

However I was wondering on the idle adjustment when this was being done. I adjusted this with the idle screw backed right off. Nothing was mentioned in the video about this but now when starting the bike it idles from cold after choke is turned off at around 1200 rpm but doesn’t go any lower once the idle screw is backed right off.  As the slides have been set to the size of the drill bit I used with the idle screw backed out.

Was I supposed to keep a small amount of adjustment left on the idle screw to allow for adjustment in lowering the idle - is the bike meant to shut off with the idle screw backed out the full way, ie closing the slides.

Thanks for any advice.


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3
CB500/550 / Re: Cb550 front wheel
« on: July 10, 2026, 10:14:28 AM »
Bearing retainer and seal was removed for fitting new bearings. (It’s the only photo I had).

I’ve refitted now with the original flanged nuts and no lock washers but applied a small amount of loctite and torqued up.


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4
CB500/550 / Re: Honda cb550F badges
« on: July 10, 2026, 10:10:03 AM »
So I have x2 what I believe are 550k side panels and one still has the badge on. I’m after replacing the badge and fitting a new badges to my panels with 550F ones like in the pic


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5
CB500/550 / Re: Cb550 front wheel
« on: July 07, 2026, 01:01:09 PM »
Are the flanged nuts lock nuts? I just can’t see any locking mechanism on them


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6
CB500/550 / Cb550 front wheel
« on: July 07, 2026, 12:01:40 PM »
I’m putting my front wheel back together after fitting new bearings but I think the brake disc bolts have been put on incorrectly.
I have fitted these nuts as they work with the lock washers (already fitted). However I have looked at pics online which looks like the original nuts don’t use lock washers. Before I had the original nuts which I plan to reuse. Am I correct in thinking no lock washers are meant to be used? The originally nuts have like a flat bottom which wouldn’t allow a lock washer to be bent over to lock. Can anyone help?


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7
CB500/550 / Re: Honda cb550F badges
« on: July 07, 2026, 11:17:23 AM »
I think these are the ones I want


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8
CB500/550 / Honda cb550F badges
« on: July 06, 2026, 08:18:33 PM »
Hi, I’m on the lookout for a set of 550F badges to go on the side casings if anyone has any kicking around?


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9
CB500/550 / Wheel bearings
« on: May 28, 2026, 09:29:06 AM »
Hi,

Does anyone know where to source a wheel bearing kit for the front and rear including all the seals of decent quality? I’m struggling to find a kit with everything in it.

Also are there any differences between the 550f and 550k?

Thanks for any help


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10
Tricks & Tips / Re: Ultrasonic Cleaning method
« on: May 13, 2026, 12:09:33 PM »
If you was to be cleaning stubborn blocked jets in petrol in a jar in the water like shown in the video how long would you run a cycle for?


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11
Where's My Old Bike? / TRH 615R CB550f2
« on: May 03, 2026, 10:39:35 AM »
This is my dad’s old bike. He inspired me to buy the one I have today.

Details are as follows:

Honda cb550f2 1977
TRH 615R

“ I sold it when it was around 18 or more years old thinking it was old and out of date.

It was 8 years old when I bought it when I was somewhere around 21/22 I think.”

It would be really cool to know what happened to it.


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12
New Member Introductions / Ignition upgrade question
« on: April 29, 2026, 08:24:50 AM »
I’ve noticed you can get a Dyna S ignition plate to replace the points as an upgrade to improve starting and smooth running.

I’ve also found a unit on David Silver spares. ADACA300505P this is the part number, it says this is a good quality Japanese part and sounds tempting at a good price. No extra parts needed.

Has anyone got any experience with either and can let me know if they’re worth getting?

My bike is completely standard at the moment running points. Cb550F 1976

Thank you


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13
New Member Introductions / Re: Which airbox do I have?
« on: April 25, 2026, 08:02:18 PM »
I just heard that there is a difference between the filters. And that the F airbox works better with the 069A carbs?


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14
New Member Introductions / Which airbox do I have?
« on: April 25, 2026, 06:44:44 PM »
Hi all, and thanks for looking at my post.

My bike is abit of a bitser between a cb550f and cb550K and I need to know which air filter to order as I think there is a difference? Thanks guys.







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15
New Member Introductions / Re: Keihin 069A carburettor question
« on: April 19, 2026, 09:21:13 PM »
I had my first ride out on it today just down the street on the PD set of carbs that I gave a quick going through, I didn’t separate them or anything just sprayed the jets through and unseized the floats. The pilot jets were all completely gummed up - finished this late last night and didn’t fill the bowls up until today when presenting the bike to my dad who used to own one in the same colour in the 1980/90s. Once he’d taken it in, I let him have the first kick to see if it would go, and lo and behold it roared into life and ticked over beautiful on the first kick. We both had a go to see what it was like down the street. And magic.

Parts ordered from Nurse Julie for the 069A carbs. I can’t wait to see what it’s like on the other set once gone through properly.

Thanks for your help guys.


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