Clutch slip, again!!

[roosterNI]

Hi all, my 01 falco with 6.5k on it is slipping the clutch again, i had changed the oil with 15w50, then found out that it could be causing the slippage so have since changed the oil to good 10w40, this was around 1500mls ago, normal riding even fast road riding the clutch is fine but when it gets really pushed on riding hard for extended periods it starts to slip, mostly 5th and 6th, and quite badly, have been looking at clutch kits, like barnett kits for around the £170 mark, does this seem the best route, or is there anything else i can do? other problem being i'm about to order a gabro chip and k+n filter, this obviously going to make it worse.

[D-Rider]

OK - with the older bikes, going to a semi-synth oil is usually the first step

The next is as described by Tweaker in an old thread on here:

As has been said, oil is your first port of call but failing this, it could be the clutch itself. However, DON'T PANIC! There is an easy (and virtually free) fix. The steel plates can become polished and the fix is to take them out and rough them up (no, not with fists!) on a flat surface with some coarse emery cloth. It's easy to do and you don't need to drain the oil. Did mine around 8k miles ago and it's still fine.

I have heard that another way to roughen the surface is to lay them on a concrete slab and rub them round a bit.

Do take careful note of how things come apart, the order they are in and which way round they are.


.... and if that doesn't work (and your clutch plates are still within their wear limit), then maybe your clutch springs need replacing.

Hopefully one of the above will sort it out.

[roosterNI]

Aha that is a good idea,will try that, might just replace springs while i'm there, also got told about putting extra slots into the friction plates, cheers for advice!!