Clutch/Plates

[jonno]

Have had some clutch slippage trouble,sorted now,but the plates have a black areas on them.Does this mean they are totally knackered and new plates required?
Also why is it in a cassette type clutch,not the one I'm on about above,with motorcycle plates and uprated springs does it slip,when the plates are designed to handle so much more power?Anyone have similar trouble?

[Knowledge]

Jonny,

Standard clutch plates are not expensive and easy to fit. Buy and fit some new ones and keep the dodgy ones for spares.

A cassette type clutch that slops is probably badly set-up. If the clearances are incorrect, or even the cable poorly adjusted, the clutch can slip. However, a correctly set up cassette clutch can handle lots of power without slipping.

[drivera]

Are you referring to the metal plates or the cork plates when you said they had black on them ??

[jonno]

Cork plates have black,should be green,as race plates.Will have to search through spares to find enough,or its £60.

[Knowledge]

Oh, I thought there were two different questions in your initial post: one about cork plates and one about cassette clutches.

So the blackened cork plates are in your cassette clutch....? Expensive plates, man. Makes me glad I've gone Surflex 5 plate (until it slips )

Sorry for my rather ignorant initial reply.

[jonno]

No Knowledge there were 2 questions,the black plates are from my 6 plate normal clutch.The other was about cassette clutch,as one I have slips and apparently this type does on powerful motors,and was wondering why as they have motorcycle clutch plates.
My fault for not supplying enough info.I try to keep typing down to a minimum

[Knowledge]

OK, I'm back in.....

I have often thought that motorcycle clutch plates are too narrow. As such, they offer less surface area compared to Lambretta plates. If they have less surface area, they have less grip.

Well, that's my theory, but I must be wrong or else all the motorcycle manufacturers would have swapped over to Lambretta style plates, and they haven't. However, the motorcycle manufacturers can stack up their plates to 7, 8 or ever 9 plates as they don't need to be confined by the dimensions of a 50 year old design of engine casing.

Does any of that make sense?

[jonno]

Yes it does thanks