Author Topic: CRF250 R Clutch in a CB550K?  (Read 2341 times)

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Offline cadyjam

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CRF250 R Clutch in a CB550K?
« on: March 25, 2011, 10:37:32 PM »
I was looking around for clutch options for my 75 Cb550. I came across the EBC CK clutch kit and noticed in the fitment tab it listed '04-'07 Honda CRF250R. Now I was curious if anyone has heard/used the CRF clutch or aftermarket clutch in there 550,or if it should even be considered an option for a replacement, street, or performance use?
http://www.denniskirk.com/jsp/product_catalog/Product.jsp?skuId=&store=Main&catId=&productId=p381796&leafCatId=&mmyId=9297
70 ct70- in pieces
72 cb500k
73 cb500k(cbr project)
73 HD XLCH-sold
75 xl125
78 xs750

Offline turboguzzi

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Re: CRF250 R Clutch in a CB550K?
« Reply #1 on: March 26, 2011, 01:48:45 AM »
happens often, the plates of my 83' GPZ750 are shared with the 2010 ZX12.

all what it means is that the friction plates are the same so you can use also use performance plates from modern models on older ones.

The plates count is going to be different, so not sure what you mean by using the "clutch of a crf450", the baskets for instance? not likely

BTW using those cross references i found a cheap Barnett plate kit that was advertised for a different model....:)

« Last Edit: March 26, 2011, 01:54:13 AM by turboguzzi »

Offline iomtt9

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Re: CRF250 R Clutch in a CB550K?
« Reply #2 on: March 26, 2011, 02:06:02 AM »
I am using Kevlar plates from a KTM, on my Honda 500/4. Not sure what model (loss of memory or just getting old ! ) .
Will post model and part no when i dig the infoout. !!!
Col

Offline bwaller

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Re: CRF250 R Clutch in a CB550K?
« Reply #3 on: March 26, 2011, 05:00:15 AM »
These are the very things that are found out while working in a bike shop. We need a parts man with SOHC4 experience.  ;D It is certain the same old style parts are shared between models. What I'd like is the improved part from that modern engine, exactly like Col has found.

I'm all ears Col and well done on the Island.

Offline iomtt9

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Re: CRF250 R Clutch in a CB550K?
« Reply #4 on: March 26, 2011, 05:42:34 AM »
Will do Brent, there was talk of some of us doing a USA meeting next year, i think it could be Barbour then Daytona ???
but im in with the little Honda, keep you posted !!!
Col

Offline turboguzzi

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Re: CRF250 R Clutch in a CB550K?
« Reply #5 on: March 26, 2011, 06:04:43 AM »
Will do Brent, there was talk of some of us doing a USA meeting next year, i think it could be Barbour then Daytona ???
but im in with the little Honda, keep you posted !!!
Col

Col, what are you going to ride? heard you are bike-less these days ;)

TG

Offline iomtt9

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Re: CRF250 R Clutch in a CB550K?
« Reply #6 on: March 26, 2011, 06:18:06 AM »
???????? no not heard that i will be taking the Honda 500/4 over, dont know where you got that from.
Am building another one up 500/4, but still keep this one for now.
Doing Croft 2 weeks time then off to Spa at Easter .
Col

Offline cadyjam

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Re: CRF250 R Clutch in a CB550K?
« Reply #7 on: March 26, 2011, 08:04:15 AM »
Looking into it a little more I am having no problem finding friction plates, but I am finding it hard to come across any clutch plates that aren't Honda OEM. Any suggestions on plates and friction form other bikes that will work?
70 ct70- in pieces
72 cb500k
73 cb500k(cbr project)
73 HD XLCH-sold
75 xl125
78 xs750

Offline Howell

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Re: CRF250 R Clutch in a CB550K?
« Reply #8 on: March 26, 2011, 01:46:35 PM »
???????? no not heard that i will be taking the Honda 500/4 over, dont know where you got that from.
Am building another one up 500/4, but still keep this one for now.
Doing Croft 2 weeks time then off to Spa at Easter .
Col

Hi Colin,

We meet you at Spa , see you.

gr.René

You meet the nicest people on a Honda

Offline classic bike tuner

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Re: CRF250 R Clutch in a CB550K?
« Reply #9 on: March 27, 2011, 03:18:41 AM »
clutch plates from barnet for the 500 have nr 301-35-10018  and are found in
honda cb 550 sc  
suzuki gsxr 1000
suzuki TL 1000
honda cb1 400cc
honda cb 650 sc
cb 750 nighthawk
honda cbr 1000 rr
honda vfr 1200
and perhaps even more

same plates also fit cb 550 and 650-2valve but barnett nr =10001  [other thicknes ?????]

the steel plates may be different
« Last Edit: March 28, 2011, 12:56:02 PM by classic bike tuner »

Offline turboguzzi

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Re: CRF250 R Clutch in a CB550K?
« Reply #10 on: March 27, 2011, 10:42:31 AM »
Looking into it a little more I am having no problem finding friction plates, but I am finding it hard to come across any clutch plates that aren't Honda OEM. Any suggestions on plates and friction form other bikes that will work?

unless you are experiencing clutch slip (and you should increase power by quite a bit to have slip), cant see a reason why not to use OEM


Offline paulages

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Re: CRF250 R Clutch in a CB550K?
« Reply #11 on: March 28, 2011, 10:13:09 AM »
Looking into it a little more I am having no problem finding friction plates, but I am finding it hard to come across any clutch plates that aren't Honda OEM. Any suggestions on plates and friction form other bikes that will work?

unless you are experiencing clutch slip (and you should increase power by quite a bit to have slip), cant see a reason why not to use OEM



I looked at this thread with excitement, then thought to myself... "wait, my clutch doesn't even slip with stock springs and stock friction plates and double the stock power output." It's good to know, but I still think using the 650 primary/clutch gearing is the way to go.
paul
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1974 CB550 (735cc)
1976 CB550 (590cc) road racer
1973 CB750K3
1972 NORTON Commando Combat
1996 KLX650 R

Offline Flying J

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Re: CRF250 R Clutch in a CB550K?
« Reply #12 on: March 28, 2011, 11:03:10 AM »
so your saying i could buy this clutch kit for $50

rather then this kit for $199

Offline cadyjam

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Re: CRF250 R Clutch in a CB550K?
« Reply #13 on: April 11, 2011, 04:52:06 PM »
so your saying i could buy this clutch kit for $50

rather then this kit for $199
I know the friction plates are the same but i'm not sure on the steel. I ended up getting steel plates from an 08' ninja 250 and friction plates from a 650. I crossed the numbers trhough on barnett's site. The only problem I am having now is finding a Clutch cover gasket. Called my local Honda dealer and part has been discontinued.
70 ct70- in pieces
72 cb500k
73 cb500k(cbr project)
73 HD XLCH-sold
75 xl125
78 xs750

Offline fastbroshi

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Re: CRF250 R Clutch in a CB550K?
« Reply #14 on: April 12, 2011, 08:10:19 PM »

I looked at this thread with excitement, then thought to myself... "wait, my clutch doesn't even slip with stock springs and stock friction plates and double the stock power output." It's good to know, but I still think using the 650 primary/clutch gearing is the way to go.

Paul, I thought you were experiencing some slip with the stock primary gearing, as well as the stock clutch components?
Just call me Timmaaaaay!!!

Offline Motoguy23

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Re: CRF250 R Clutch in a CB550K?
« Reply #15 on: April 13, 2011, 01:19:13 AM »
I've heard that Barnett clutch plates used to wear out the oil pump because of the material that they used in the friction plates.  I'm not sure if they are still using the same material or not.
All glory to the hypno-toad.

Offline turboguzzi

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Re: CRF250 R Clutch in a CB550K?
« Reply #16 on: April 13, 2011, 04:44:19 AM »
so your saying i could buy this clutch kit for $50

rather then this kit for $199
I know the friction plates are the same but i'm not sure on the steel. I ended up getting steel plates from an 08' ninja 250 and friction plates from a 650. I crossed the numbers trhough on barnett's site. The only problem I am having now is finding a Clutch cover gasket. Called my local Honda dealer and part has been discontinued.

I use high quality sealant without a gasket, works just fine.