Honda-SOHC
SOHC.co.uk Forums => CB500/550 => Topic started by: tommo903 on October 19, 2025, 01:35:13 PM
-
Hi, bit of a disaster this morning :(…something I hadn’t spotted previously. I noticed a hair line crack in the top yolk. I loosened the pinch bolt and the inevitable happened…part of the top yolk came away. Just to rub salt in the wound, it’s the same on the other side too.
Im sure this will have happened to others too, so I’m wondering if anyone has had a successful repair carried out, or am I in for another top yolk?
Thanks for any help or recommendations.
Cheers, Steve
-
I would not attempt to repair that.
-
That is what happens if you don't have the D washers/spacers
New yoke needed
Sent from my SM-A546E using Tapatalk
-
Strangely enough, it was the D washers that drew my attention to it. I noticed them in the parts book and wanted to check on my bike to see if they had been fitted. They were fitted, which makes it a bit odd that this has happened. It would seem hard to believe that a PO broke the yolk by missing out the washers, then adding them afterwards.
Thanks anyway, I think you’re right, a new/good used yolk is what’s needed.
-
The early pinch bolts are bigger than the later ones and can be grauched up way too tight
-
Mine is missing these D washers, are they still available?
-
Were last time i looked
-
They aren't listed on CMSNL, not even a part number
-
53235300000 same as 750 where it is a D washer and on 500K0/1 where it is a spacer washer
-
[attachimg=1]
Here goes ...for your top YOKE I drew it up years ago and it was on here till we lost most of our images GRRR!
Even checked by S.B. Devotion ...... ;D ;D
-
Ash, I found that just before you posted it. I could adapt some stainless thick washers surely
-
Ash, I found that just before you posted it. I could adapt some stainless thick washers surely
yea sure ...can't believe it's nearly 10 years since I did it :-[
-
Time does fly, 2 years and ive still not got this 550 running properly 😆
-
Sod off, nearly 20 and i still havent rebuilt No36
-
Sod off, nearly 20 and i still havent rebuilt No36
😀
-
Make sure you have checked the appropiate partslist for your specific model. My CB500K2-ED, like the CB550K2, does not have these D washers anymore and has 7mm* instead of 8mm bolts.
* Tightening torque: 1,8-2,5 kg/m
-
So does every other model with a replacement yoke, Honda superceeded the part without changing number
-
Funny this should come up. A few weeks back I noticed that there seemed to a quite a large gap in the yoke where the pinch bolts pass through, I looked at the parts list for mine (1975 550 K1), and it showed the D washer 38205-323-000, I’ve ordered but still waiting on delivery.
-
38205-323-000 is a fuse-holder ;)...it's a ---300---- part.
[attachimg=1]
-
38205-323-000 is a fuse-holder ;)...it's a ---300---- part.
(Attachment Link)
Apologies Ash, you’re correct it was 53235-300-000 that I ordered.
-
Just checked mine, washers are missing. Was not aware of them being needed in 1995 when I put the bike together. Evidently, I have been lucky. I am planning to rebuild my forks soon as the oil seals have started weeping this year. I will include washers. Thanks for the warning.
-
Florence, depends on spanner size of bolts, if 10mm spanner its big bolts, if 8mm its smaller bolts