Dragging clutch

[Scottvincent]

Hi
No, the bike does not have the double plate. I’ll post some photographs tomorrow after I’ve pulled the clutch out.

Thanks to all.

[Scottvincent]

Hi
As promised, some photographs of the clutch assembly.

[Scottvincent]

More photographs

[Scottvincent]

I would be more than happy if anyone can spot some obvious fault, I’m running out of ideas.

Thank you.

[hairygit]

Well, what leaps out at me are the friction plates. In every F1 I have ever done the clutch on, only the outermost plate has the tangential slots on it, all other plates had conventional slots. There should also be a double thickness metal plate in there as well, basically 2 rivetted together. I can't say for certain if all the fibre plates having tangential slots is the cause of your issue, but I've never seen it like that before. Also, with a 40+year old bike, there is always the risk of things being incorrectly assembled by a previous owner, so replacing something exactly the way you found it can also be fraught with problems. It may even be the reason it was parked up years ago, something incorrectly assembled and the owner got fed up with it!

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[K2-K6]

Presumably the plates have been checked to assess flatness?

[Nurse Julie]

The K6 clutch is the same as the F1 clutch and yours doesn't look anything like a K6 clutch.

[Scottvincent]

Now we might be getting somewhere. Does anyone have a photograph of a F1 clutch? How does it differ from my clutch?

Thank you

[Bryanj]

I have the genuine Honda workshop K6 supplement manual you can have for a fiver plus postage if you want it, i will look if clutch is in there forst

[Nurse Julie]

Where's the big washer, I can't see it in your photos 🤔

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[Scottvincent]

Thanks for the advice. Nurse Julie, the big washer is shown in the second photograph that I posted. I left it on the shaft.

[Scottvincent]

Bryanj, thanks for the offer of the book. I have got the F1 supplement book. The line drawings do not really show any differences (that I can see).

[Scottvincent]

Sorry Nurse Julie. Wrong photograph, it is shown on the fourth photograph.

[Trigger]

As Hairy as already stated, it doesn't even look like a F1 clutch set up. The friction plates look very dry. Did you soak them in a bucket of oil for 24hrs before fitting ?

Not sure what to suggest with this one. It is not a good idea to dress the basket. I would look for a F1 complete clutch and start again. Were are you located in Norfolk as, i am not far from the Norfolk boarder and would love to see what the problem is up close and personal 

[Scottvincent]

Hi Trigger. Firstly, thank you very much for the offer of looking at the bike. I live on the coast just east of Cromer, not far in a straight line from Horncastle but a little further when you factor in the Wash! However, my wife is having to shield at the moment and so visits are off limits for the foreseeable future. The summer may be a different matter if I cannot get this sorted.

When I fitted the new plates, I believe that I did soak them in oil. They have sat for about 9 months unused and so may have dried out in the bike? I’m going to remove the basket from the bike and check fit and movement of the plates in detail. I will re-soak and refit.

The Honda F/F1 parts book shows the option of either having plain plates or 5 plates and the composite plate. DS and CSMNL both show their replacement clutch packs for the F1 as having the ‘swirl’ pattern as opposed to the puck pattern. I don’t know if this is relevant to my problem

Looking at the line drawings in the parts book, the clutch shown appears to be the same as mine. What differences have you observed?

Lastly I greatly appreciate the help from the forum, the bike is too good to be abandoned!