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Old 10-Jun-2003, 12:37 PM
keggsey keggsey is offline
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Clutch

After spending a pleasant if a little damp afternoon with the Hants mob I had a spritied ride home and ended up with what I presume (having never had one before) was a slipping clutch. it was Ok in first couple of gears, but heavy acceleration in 3+ saw the revs rise but no extra forward motion.

The bike is a 916SP and has a slipper clutch fitted. Make unknown

Can any one tell me if this can be adjusted out or whether the clutch needs replacing.

If it does need changing can it be done by a mechanical imbacile, such as me, or should I take it to the garage. Only probelm with the latter idea is they are booked solid until July.

Also any idea of price and where to get it from.

thanks

Kevin
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Old 10-Jun-2003, 01:27 PM
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JPM JPM is offline
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OK, so you've got a slipper clutch, no big deal, the actual clutch plates etc are exactly the same, maybe different material etc, but physically the same.

What I have found is that some plates wear more than others, which seems a bit odd, but does seem to be the case.

Assuming you have a 6 post slipper, it's pretty easy, remove clutch cover, then set about removing the 6 pressure plate bolts, and keep hold of bolts, springs, and caps.

No pull the pressure plate off, this may take a bit of force, now you will see the firction and steel plates, remove plates one by one, obviously remembering which order they were removed in, and if possible keeping them in the same position, you will notice on the steel plates there is a notch cut out on the outer edge, keep them line up across the clutch pack.

After a couple of plates, you'll begin to struggle getting them out as they go further into the clutch housing, I use a wire coat hanger I've cut down to pull the plates where your fingers can't reach.

Now when all the plates are out, clean out the clutch, an air line is good, but if you're like me you don't have one.

Now I have in the past reversed the friction plate order, and extended the life of a clutch for about a 1000 miles, but a slipper clutch from my experience of having one on my 996 eats plates in comparison to the standard clutch. As soon as you're off the throttle the plates are slipping, increasing wear, which unless you're doing track days and not ride on the road you will be OK, but for me on the road they eat plates.

Anyway... I digress

Basically Get somew new plates, and rebuild in reverse to the removal...

It will probably take just over an hour your first time.
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Old 10-Jun-2003, 08:16 PM
keggsey keggsey is offline
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Thanks

Thanks for the reply. Sounds easy enough, so may well give it a go.

Any recomendations on replacement plates and where to get them?
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Old 10-Jun-2003, 10:05 PM
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it depend on what part of the country you are from Keggsey
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Old 11-Jun-2003, 09:27 AM
Jinx Jinx is offline
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Hi Kevin,
I doubt anyone will recommend this, but....

My old Pantah used to slip it's clutch every 6 months or so due to the springs being too weak (alloy clutch to brittle for stronger springs).
What I did was take all the plates out and wipe them with 400 enery paper. Just enough to take the shine off them, then pop them back in & off I'd go for the next 6 months.
If your going to get a new set of plates, then it might be worth trying this on your old plates 1st.

Jim

...oh,oh,.. here come the responses...
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Old 11-Jun-2003, 11:43 AM
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rcgbob44 rcgbob44 is offline
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Clutch

Its a pitty that the clutch on a duke lets the whole bike down, mine screaches terrible when i pull away, no matter how gently. Its impossible to make a rapid start for fear of the crappy thing exploding. Wots the cure!!!!!
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Old 11-Jun-2003, 03:16 PM
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Quote:
Originally posted by rcgbob44
Its a pitty that the clutch on a duke lets the whole bike down, mine screaches terrible when i pull away, no matter how gently. Its impossible to make a rapid start for fear of the crappy thing exploding. Wots the cure!!!!!

Earplugs

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Old 11-Jun-2003, 03:26 PM
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rcgbob44 rcgbob44 is offline
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Ear plugs

Ok Ok I asked for that !.anyway I always liked wet clutches
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Old 13-Jun-2003, 09:08 AM
keggsey keggsey is offline
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I'm in Southampton.
will try dealer unless anyone knows a good mailorder company. Will give them a good rub first, see how that goes.
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Old 13-Jun-2003, 10:05 AM
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Try JHP, Superb mail order service for genuine bits.

Used em a few times. called before lunch, bits arrive next morning

Ray



[Edited on 13-6-2003 by Ray]
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