Clutch slip

Sprocker · Nov 12, 2008

How hard is it to change the clutch plates :dunno I think mine's ready to be done as I was out today and it was red-lining at 130 :jack

Also what would it cost for a set of OEM plates, or would it be a better idea to get those Barnett ones I've seen on e-bay :eatcorn(bit expensive, but if they are worth it then i'll get saving up :biggrin)

Cheers

Dave

AREESSMILL · Nov 12, 2008

Have a look at my post Sprock. I was shitting myself about changing them but they are piss esy

95 quid for OEM plates and about 145 quid for Barnett.

cheesy1 · Nov 12, 2008

yep piece of cake to do

might be worth stripping them out first & see if you have any glazing on them

you could roughen the plates up as this helps

I stripped mine as mine was slipping bad, nothing wrong with plates, everything in tolerance
put it back together all is well
also a change in brand of oil can cause this

amb67 · Nov 12, 2008

Don't bother with stripping and roughing up, just get rid of them and fit that Barnett clutch kit.

You'll not regret it.

PM me your email address and I'll ping across a 'how to' on your clutch.

It's so easy Tim (Areesmill) could do it. LOL

Sprocker · Nov 12, 2008

cheesy said:
yep piece of cake to do

might be worth stripping them out first & see if you have any glazing on them

you could roughen the plates up as this helps

I stripped mine as mine was slipping bad, nothing wrong with plates, everything in tolerance
put it back together all is well
also a change in brand of oil can cause this

I recently had a service which included a change of oil, but why would that cause the problem and would roughing the plates up cure it :dunno

AREESSMILL said:
Have a look at my post Sprock. I was shitting myself about changing them but they are piss esy

95 quid for OEM plates and about 145 quid for Barnett.

I'll have a look for that thread tomorrow Tim :thumbup

amb67 said:
Don't bother with stripping and roughing up, just get rid of them and fit that Barnett clutch kit.

You'll not regret it.

PM me your email address and I'll ping across a 'how to' on your clutch.

It's so easy Tim (Areesmill) could do it. LOL

I've spent too much money just recently so Cheesy's idea's going to be the cheapest option first :biggrin

My email addy is [email protected] :thumbup thanks guys

Dave

supertedlover · Nov 13, 2008

Sprock i did mine , can help you if you like

amb67 · Nov 13, 2008

Slipping clutch after an oil change, Hmmm!

I think Spoonz has commented on this before, wasn't it to do with going from semi to fully synthetic oil??

Worth doing a bit of a search to see if you can find that thread.

TTrouble · Nov 13, 2008

Find out what oil they used sprocker. If they used fully synth that can cause the clutch to slip if the bike has been running semi synth up until that point.

Sprocker · Nov 13, 2008

supertedlover said:
Sprock i did mine , can help you if you like

Cheers Stu, i'll give you a shout if i get stuck :thumbup i'm going to have a bash today ( at the clutch ) as the weathers looking a little dodgy for riding..

TTrouble said:
Find out what oil they used sprocker. If they used fully synth that can cause the clutch to slip if the bike has been running semi synth up until that point.

They put in Silkolene Comp 4 15w-50, but i'm not sure what oil was in before :dunno

supertedlover · Nov 13, 2008

I run that oil as do a few others and its good for me. You have my number sprock if you get stuck.

Sprocker · Nov 13, 2008

amb67 said:
Don't bother with stripping and roughing up, just get rid of them and fit that Barnett clutch kit.

You'll not regret it.

PM me your email address and I'll ping across a 'how to' on your clutch.

It's so easy Tim (Areesmill) could do it. LOL

Just got your e-mail Amb..excellent write-up :thumbup

gaz · Nov 13, 2008

fully sinth only effected bikes years ago. I've ran full for years in all my bikes and they've been fine

TTrouble · Nov 14, 2008

Isn't there a bit of an issue with the Barnet clutch? I am sure I read that the plates are marginally thicker than standard and unless your clutch is 100% right it very often causes clutch drag and "lurching" when engaging 1st at a standstill.
It may have been on AF1 or somewhere, I'll have a look.

TTrouble · Nov 14, 2008

Here we go...

http://www.apriliaforum.com/forums/showthread.php?t=111443&highlight=barnet

spoonz · Nov 14, 2008

semi or fully synth isn't the issue with the plates slipping as such it's when you go from one type to another once the plates are well impregnated with one or the other. It can glaze the plates and cause slip. Best to tell them the oil history when you go for service if you know it and stick with the type you historically have used.
you can get them back sometimes with a roughen up with some 300 grit paper or similar.

The barnett plates work ok, not used them but have heard they can be a bit grabby, but the main thing is to make sure you get the latest kit which has a narrower outer plate. the original kit made the stack height to great and dragged badly.

Sabre · Nov 14, 2008

If you do take them out to clean/roughen them up fror Gods sake dont mix them up like I did

uke. I wasted a day sorting out the resultant horrendous slip. I dont know what year your bike is but mine, being an 00, has a slightly diffrerent clutch basket. Its vital the plates are put back in order as the basket face has a bevel.:dowhat

Oh and be careful with the diaphram.

Sprocker · Nov 14, 2008

Sabre said:
If you do take them out to clean/roughen them up fror Gods sake dont mix them up like I diduke. I wasted a day sorting out the resultant horrendous slip. I dont know what year your bike is but mine, being an 00, has a slightly diffrerent clutch basket. Its vital the plates are put back in order as the basket face has a bevel.:dowhat

Oh and be careful with the diaphram.

Mines a 2000 model too. Didn't get chance to do it today but i might strip it tonight so watch this space for a "hows it go back together" question :biggrin

AREESSMILL · Nov 14, 2008

sprocker said:
Mines a 2000 model too. Didn't get chance to do it today but i might strip it tonight so watch this space for a "hows it go back together" question :biggrin

that

Hey Sprocker

If you do a write up with pics that would be great as I reckon mine will need doing soon, but being a feckwit mechanicallythat would be great:doug

danf1234 · Nov 14, 2008

Snap I wouldn't mind seeing a write up

Sprocker · Nov 15, 2008

Clutch replacement

This is an attatchment amb67 sent me. I've cut a bit of stuff from the start and added a multiplier factor as the plate/spring sizes on the document are in inches, and I used metric calipers.

Hope this helps...it did me :thumbup

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