SOHC.co.uk Forums > CB350/400
Carburettor Insulators
Davelu88:
I couldnt see any difference in mine that are off plus if Julie has hers on wrong they still must go on ok and line up , just a thought ;D
Deano400:
If I get chance tomorrow I will try Oddjob's suggestion of swapping the insulators round and fitting the carbs. It may well highlight an alignment issue although not enough to stop the carbs from being fitted. But, as the insulators are numbered and if fitted correctly, still leaves the divots on 1 and 4 a mystery.
Nurse Julie:
--- Quote from: Oddjob on October 25, 2018, 08:19:15 PM ---I suspect Julie that the insulators are handed slightly, in that the outside/inside ones may bend very slightly inward, hence why different part numbers and why they are numbered. You may not have noticed any problems getting them engaged with the carbs as they are such a bitch to fit anyway or maybe you did notice but just thought it was normal.
Got to say I'd forgotten about the numbers on them, only really a problem if you remove them for head work etc. Of course Trig will say he knew Julie, he's a man and men don't like to admit they didn't know something even if he really didn't know.
What we need now is someone who has a 400 head off and will fit the insulators incorrectly and then correctly and post pics of them in both cases so we can see if there is an alignment issue.
--- End quote ---
I have just been given a lecture on these things and again my assumption was wrong. I thought cylinder 1 would have a rubber on with the No.1 showing uppermost, cyl 2 with a No. 2, cyl 3 with a 3 and cyl 4 with a 4. But, that may not be the case but i wont know until i actually get them in their correct 'pairs' i suppose. Trig did know, because although they are a different design, the CB750 ones are also numbered.
Deano400:
You are right Julie.
No. 1 will have 1 at the top 4 at the bottom.
No. 2 will have 2 at the top 3 at the bottom.
No. 3 will have 3 at the top 2 at the bottom.
No. 4 will have 4 at the top 1 at the bottom.
Davelu88:
Anyone know what the divots are for ;D ;D ;D ;D ;D ;D
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