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SOHC.co.uk Forums => CB350/400 => Topic started by: McCabe-Thiele (Ted) on March 27, 2023, 11:55:50 AM

Title: 400 carb slider adjustment question need to check ?
Post by: McCabe-Thiele (Ted) on March 27, 2023, 11:55:50 AM
I'm currently cleaning up my set of spare carbs for my 400 and have found a part I never noticed previously.

There are two solid dowels between the carb pairs  - can't find it in the parts book - anyone know the part number please?
Title: Re: 400 carb cleaning - missing part question ?
Post by: Sesman on March 27, 2023, 12:04:26 PM
Ted, are you referring to the short peg that the throttle return spring hooks on? If so I don’t think there is a part no?

Title: Re: 400 carb cleaning - missing part question ?
Post by: Bryanj on March 27, 2023, 12:11:31 PM
It was never available mate, i have a box of assorted 400 bits and will look on saturday for you but dont know if there is one. I think the 500 is same part.
Title: Re: 400 carb cleaning - missing part question ?
Post by: McCabe-Thiele (Ted) on March 27, 2023, 12:55:56 PM
Ted, are you referring to the short peg that the throttle return spring hooks on? If so I don’t think there is a part no?

Its not that part it is a dowel that sits between carbs 1-2 & 3-4 towards the rear of the body - some sort of alignment spacer. One of mine is missing. TBH I don't think the carbs on my 400 have either of them.
Title: Re: 400 carb cleaning - missing part question ?
Post by: McCabe-Thiele (Ted) on March 27, 2023, 12:57:14 PM
It was never available mate, i have a box of assorted 400 bits and will look on saturday for you but dont know if there is one. I think the 500 is same part.


If you happen to have one brilliant - thanks Bryan.

Update:- It appears there are plenty of Dowels on flea-bay in SS 10 mm x 6mm reasonably cheap - just plain with no center groove. If I can find an original would be better.
Title: Re: 400 carb cleaning - missing part question ?
Post by: Matt_Harrington on March 28, 2023, 09:57:55 AM
Ted, is it possible to photo this area? I'm rebuilding a set and don't seem to remember seeing them before they were stripped....
Title: Re: 400 carb cleaning - missing part question ?
Post by: Laverdaroo on March 28, 2023, 10:09:22 AM
quick find,

type in CMSNL CB400F Carb and look at part number 17 which is the spring Matt, I think Ted means the bit that sits at the bottom of it to attatch the spring to, I had nothing else on my carbs when I dod those. Cabt really think of anything else that refers to a small round connector either........


https://images.cmsnl.com/img/partslists/honda-cb400f-super-sport-400-four-1975-cb400fk0-usa-carburetor_bighu0235e7019_a936.gif
Title: Re: 400 carb cleaning - missing part question ?
Post by: Sesman on March 28, 2023, 10:11:19 AM
He reckons not in an earlier post.
Title: Re: 400 carb cleaning - missing part question ?
Post by: Laverdaroo on March 28, 2023, 10:14:13 AM
MOrning Phil,

dunno what else it can be, Ted you described it as a barrel of steel 10mm x 6mm with a groove in it, there is only one, I'm sure.
Could we employ the use of a 400 anorak please?......anyone?
Title: Re: 400 carb cleaning - missing part question ?
Post by: Multiman on March 28, 2023, 10:24:33 AM
Having stripped and rebuilt my 400 carbs last week the only thing I can think of is the spring peg between 2&3. As had been said it is in the parts book diagram but doesn’t have a part number and there’s only one of ‘em. If it’s not that component I’m mystified.
Title: Re: 400 carb cleaning - missing part question ?
Post by: Laverdaroo on March 28, 2023, 10:27:55 AM
I like the way you came forward as an anorak Tim ;D

Arent you supposed to be doing your 1 day a week today and working?
Title: Re: 400 carb cleaning - missing part question ?
Post by: Matt_Harrington on March 28, 2023, 10:32:13 AM
quick find,

type in CMSNL CB400F Carb and look at part number 17 which is the spring Matt, I think Ted means the bit that sits at the bottom of it to attatch the spring to, I had nothing else on my carbs when I dod those. Cabt really think of anything else that refers to a small round connector either........


https://images.cmsnl.com/img/partslists/honda-cb400f-super-sport-400-four-1975-cb400fk0-usa-carburetor_bighu0235e7019_a936.gif

OK, when this sodding rain stops, I'm off to the shed to 'ave a shufty!
Title: Re: 400 carb cleaning - missing part question ?
Post by: Multiman on March 28, 2023, 10:41:39 AM
I like the way you came forward as an anorak Tim ;D

Arent you supposed to be doing your 1 day a week today and working?

Yes thank you Roo. Up bright and early for my Cardiff gig.
It’s a bit damp over here so the anorak has come in useful.
Title: Re: 400 carb cleaning - missing part question ?
Post by: Laverdaroo on March 28, 2023, 10:44:48 AM
OOOsh, a wet Cardiff.......nasty! ;D
Title: Re: 400 carb cleaning - missing part question ?
Post by: taysidedragon on March 28, 2023, 01:43:13 PM
OOOsh, a wet Cardiff.......nasty! ;D

Steady! 💦😅
Title: Re: 400 carb cleaning - missing part question ?
Post by: Laverdaroo on March 28, 2023, 01:53:02 PM
Ooops, bout that ;D ;D
Title: Re: 400 carb cleaning - missing part question ?
Post by: McCabe-Thiele (Ted) on March 28, 2023, 02:15:31 PM
On reflection I think the suggestions about where the spring sits accounts for why I only have one dowel - that's logical - it explains the groove  as well thanks Philip, Multiman & Mr Spock . My Bad.

As a poor excuse I dismantled, numbered & individually boxed the parts about 5 months ago just started assembly last week. Currently using the US cleaner for each carb as I put them together.Duh
Title: Re: 400 carb cleaning - missing part question ?
Post by: Oddjob on March 28, 2023, 03:06:55 PM
So is the spring dowel missing or not Ted? If you thought there were 3 of them I can see why you'd think 2 have gone missing but are you still missing the original between 2 and 3. TBH it looks to be the same part as the 500/550 carbs.
Title: Re: 400 carb cleaning - missing part question ?
Post by: McCabe-Thiele (Ted) on March 28, 2023, 03:27:11 PM
So is the spring dowel missing or not Ted? If you thought there were 3 of them I can see why you'd think 2 have gone missing but are you still missing the original between 2 and 3. TBH it looks to be the same part as the 500/550 carbs.

I have just the one - it's the center spring dowel - so all is well.
Title: Re: 400 carb cleaning - missing part question ?
Post by: Sesman on March 28, 2023, 03:56:12 PM
That’s the chap,Ted. Short solid barrel, waisted in the middle for the spring👍 The item below ‘17’ on the CMNSL fiche as identified by Roo.
Title: Re: 400 carb cleaning - missing part question ?
Post by: Laverdaroo on March 28, 2023, 03:57:15 PM
Yer welcome 8)


I got summut right for a change, get me ;D ;D ;D
Title: Re: 400 carb cleaning - missing part question ?
Post by: McCabe-Thiele (Ted) on March 28, 2023, 04:30:27 PM
👍👍👍
Title: Re: 400 carb cleaning - missing part question ?
Post by: Matt_Harrington on March 28, 2023, 05:04:34 PM
Just found mine - so thanks for the heads up as it would have been a pain to take 'em all apart again....
[attachimg=1]
Title: Re: 400 carb cleaning - missing part question ?
Post by: McCabe-Thiele (Ted) on March 28, 2023, 05:30:05 PM
Yes that's the part!
Title: Re: 400 carb cleaning - missing part question ?
Post by: Matt_Harrington on March 28, 2023, 06:05:32 PM
Mine are now all back together - now comes the fun part of setting them up!
Title: Re: 400 carb cleaning - missing part question ?
Post by: Laverdaroo on March 28, 2023, 06:09:04 PM
You still thinking on bobbing over to have a gander at the 400 engine this week Matt?
Title: Re: 400 carb cleaning - missing part question ?
Post by: Matt_Harrington on March 28, 2023, 06:12:30 PM
Actually, tomorrow is free - OK? PM me details....
Title: Re: 400 carb slider adjustment question/check
Post by: McCabe-Thiele (Ted) on March 30, 2023, 06:26:55 PM
I clearly have the memory of a Goldfish when it comes to putting my carbs back in place on the manifold/frame.

Is it correct to set the height of the sliders using the screws in the picture below to adjust them as needed - last time I used a small drill bit shaft iirc.

(https://live.staticflickr.com/65535/52781943264_7010d730c6_o.jpg) (https://flic.kr/p/2oqafQy)400 slide adjusters (https://flic.kr/p/2oqafQy) by Macabe Thiele (https://www.flickr.com/photos/187487200@N03/), on Flickr
Title: Re: 400 carb slider adjustment question need to check ?
Post by: Multiman on March 30, 2023, 09:41:39 PM
Yes, those are the screws to set the slider heights.
Title: Re: 400 carb slider adjustment question need to check ?
Post by: McCabe-Thiele (Ted) on March 31, 2023, 09:08:36 AM
Thanks I just can't remember using them when I first rebuilt the carbs on my 400 before Covid - in my head I thought I used the screws between the carb links.
One of the float pillar tips was in poor condition so this spare set will eventually replace them. Keeping busy tinkering before I resume work on the 500 forks.
Title: Re: 400 carb slider adjustment question need to check ?
Post by: McCabe-Thiele (Ted) on April 06, 2023, 02:22:45 PM
Just assembled the four carbs onto the manifold - all has gone okay.
The locking taps that fits between the pairs of carbs are missing on my spare set so currently trying Steve at 400 bits for a pair so I can crack on with float levels & bench synch etc.

.

(https://live.staticflickr.com/65535/52781943264_7010d730c6_o.jpg) (https://flic.kr/p/2oqafQy)400 slide adjusters (https://flic.kr/p/2oqafQy) by Macabe Thiele (https://www.flickr.com/photos/187487200@N03/), on Flickr
Title: Re: 400 carb slider adjustment question need to check ?
Post by: Oddjob on April 06, 2023, 02:31:51 PM
Julie had some made a few years ago, not sure if she still has any left. We call them figure of 8s.
Title: Re: 400 carb slider adjustment question need to check ?
Post by: Bryanj on April 07, 2023, 01:08:10 AM
4 into 1 in the us do them
Title: Re: 400 carb slider adjustment question need to check ?
Post by: McCabe-Thiele (Ted) on April 07, 2023, 10:30:14 AM
Sorted thanks Ken via NJ.  ;D
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