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CBR1000f Clutch

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CBR1000f Clutch - 2/23/2007 12:54:39 AM

XXCBRChrisXX

Posts: 148
Joined: 2/20/2007
Status: offline

why would a clutch usually slip on ...besides that its worn down?

i get a little slip around 7-8k thinking of an EBC kevlar upgrade

has anyone ever tried this?

talk about your clutches people

Post #: 1

RE: CBR1000f Clutch - 2/23/2007 3:01:05 AM

MarkR

Posts: 975
Joined: 8/20/2005
From: Gold Coast, Australia
Status: offline

If your clutch fluids have not been change for years, like mine was, then you could suffer from clutch slip due to the clutch hydraulics not operating properly

(in reply to XXCBRChrisXX)

Post #: 2

RE: CBR1000f Clutch - 7/12/2008 10:07:28 PM

Naga_Thai

Posts: 163
Joined: 4/21/2008
From: Melbourne, AUSTRALIA
Status: offline

I just replaced my clutch on 1990 CBR1000F after 65,000 km so here is my view..... After such low mileage the clutch should not be a problem. The hydrolic mechanism has no adjustmet so dont worry about that except ensure first it is working OK and no dirty fluid. If sombody put fully synthetic oil (or additives) in the bike then this can cause slip - stick to the reccomended oil.Replace clutch parts only as needed. (Mine after 65,000k - all parts were still in spec so maybe you will only need fibre plates.)

I used Barnett clutch kit (kevlar) only becaust I got it cheap - dont wory about "heave duty" stuff it is not needed. Honda, Barnett & ECB all OK - buy what you can get cheapest in your area.

Took me 1 hour to do replacement and I''m no mechanic - but I can follow instructions - make sure you have touque wrench for spring bolts... See this site for detailed clutch replacement with magnificent pictures.

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WORKSHOP MANUAL - http://www.members.iinet.net.au/~cbr/Honda_CBR1000F_Service_Manual.pdf
REGULATOR RECTIFIER - http://tinyurl.com/6fnjdq
CARB SYNC BALANCE - HOW TO - http://tinyurl.com/6qgfnv & http://tinyurl.com/4o2

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Post #: 3

RE: CBR1000f Clutch - 7/13/2008 5:08:29 AM

pfsnsd

Posts: 114
Joined: 4/20/2007
From: Connecticut, USA
Status: offline

+1 MarkR I had a little slip when I got on it sometimes. Changed the clutch fluid (it was nasty!), and it hasn''t happened since. I hope that''s what it is, very quick, easy and will cost you a bottle of DOT 4.

(in reply to MarkR)

Post #: 4

RE: CBR1000f Clutch - 7/13/2008 7:53:43 AM

TimBucTwo

Posts: 608
Joined: 6/13/2006
From: Upstate NY, USA
Status: offline

A clutch can slip if any additives are in the oil. Synthetic oil will make a clutch slip. What is in your crankcase?

Edit: 7-8k is in the power band.

< Message edited by TimBucTwo -- 7/13/2008 7:57:32 AM >

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Post #: 5

RE: CBR1000f Clutch - 7/13/2008 3:50:40 PM

idodirt

Posts: 768
Joined: 8/14/2006
From: South Florida, USA
Status: offline

quote:

ORIGINAL: TimBucTwo

Synthetic oil will make a clutch slip.

I beg to differ. Synthetic oil in and of itself will not make the clutch slip. I''ve used synthetic oil for 25K miles and she still pulls strong to 160mph with no slippage. Yes, you can put the wrong oil into the bike and cause problems with the clutch slipping. But to make a general statement that synthetics cause the clutch to slip is not entirely accurate.

Not throwing stones TBT, just a difference of opinion.

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Post #: 6

RE: CBR1000f Clutch - 7/13/2008 6:20:46 PM

amacadams

Posts: 17
Joined: 5/9/2008
From: Central Massachusetts, USA
Status: offline

Agreed. Been using full synthetic (Mobil 1) for 2+ seasons with no problems in my 1KF.
The documented benefits of synthetic are hard to argue with.

-Aaron

_____________________________

1999 Ford Ranger XLT
1991 Honda CBR 1000F
1972 Ford Mustang Mach 1

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Post #: 7

RE: CBR1000f Clutch - 7/14/2008 1:50:58 AM

Shadow

Posts: 3615
Joined: 12/21/2007
From: Pinetown, South Africa
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Beg to differ, Bill - mine slipped on synthetic WHEN COLD, fine when warm........

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Post #: 8

RE: CBR1000f Clutch - 7/14/2008 6:46:03 AM

Bassman

Posts: 72
Joined: 7/6/2006
From: Hamden, CT USA
Status: offline

I''ve been using Castrol Syntec in all my bikes for many years now with no oil related clutch problems.

_____________________________

Bassman
''93 CBR 1000F
''89 GB 500
''83 XR 350R
''76 CB 400F

(in reply to Shadow)

Post #: 9

RE: CBR1000f Clutch - 7/15/2008 7:02:00 PM

bobjan

Posts: 21
Joined: 4/29/2006
Status: offline

I just did the clutch on my 90 cbr same thing around 7 to 8 thousand rpm it would slip only when on it hard pulled it apart looked good.Fibers were fine steels wernt glazed .I redid it with a barnett kevlar set also when i checked the springs they were about 3 eights off in height leading me to belive i just had weak springs.But i can feel the difference in the way she screams now .by the way what do you guys torque the springs to i thought it was 6 or 9 ft lbs i went with 9 ft lbs

(in reply to XXCBRChrisXX)

Post #: 10

RE: CBR1000f Clutch - 7/15/2008 8:18:56 PM

idodirt

Posts: 768
Joined: 8/14/2006
From: South Florida, USA
Status: offline

Shadow1, how many miles were on the clutch at the time ? What synthetic oil did you put in it ? When you say cold, how cold was it ?

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Post #: 11

RE: CBR1000f Clutch - 7/15/2008 11:06:21 PM

malbojah

Posts: 397
Joined: 3/10/2006
From: Cape Cod, MA
Status: offline

quote:

ORIGINAL: bobjan

I just did the clutch on my 90 cbr same thing around 7 to 8 thousand rpm it would slip only when on it hard pulled it apart looked good.Fibers were fine steels wernt glazed .I redid it with a barnett kevlar set also when i checked the springs they were about 3 eights off in height leading me to belive i just had weak springs.But i can feel the difference in the way she screams now .by the way what do you guys torque the springs to i thought it was 6 or 9 ft lbs i went with 9 ft lbs

I think it''''s 7 ft lbs if my write is correct

Edit: I''m looking through my clutch write-up and half of it is missing...what gives admins?

< Message edited by malbojah -- 7/15/2008 11:08:47 PM >

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HOW TO: Valve Adjustment

HOW TO: Plastic Speedo Gear Replacement

HOW TO: Clutch Replacement (PICTURE INTENSE)
http://www.cbrforum.com/m_266491/mpage_1/key_/tm.htm#266491

(in reply to bobjan)

Post #: 12

RE: CBR1000f Clutch - 7/15/2008 11:06:45 PM

Shadow

Posts: 3615
Joined: 12/21/2007
From: Pinetown, South Africa
Status: offline

Around 15000 K''s
Within 2 kilometers from start, so still below op temp
Castrol Actevo 10w-40

(in reply to idodirt)

Post #: 13

RE: CBR1000f Clutch - 7/16/2008 9:14:44 AM

TimBucTwo

Posts: 608
Joined: 6/13/2006
From: Upstate NY, USA
Status: offline

quote:

ORIGINAL: idodirt

quote:

ORIGINAL: TimBucTwo

Synthetic oil will make a clutch slip.

I beg to differ. Synthetic oil in and of itself will not make the clutch slip. I''''ve used synthetic oil for 25K miles and she still pulls strong to 160mph with no slippage. Yes, you can put the wrong oil into the bike and cause problems with the clutch slipping. But to make a general statement that synthetics cause the clutch to slip is not entirely accurate.

Not throwing stones TBT, just a difference of opinion.