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General Category => General Discussion => Topic started by: wheels on December 05, 2009, 04:30:42 PM

Title: clutchplates
Post by: wheels on December 05, 2009, 04:30:42 PM
morning all ' iwas pulling my clutchplates out and i came across two steels together with no friction plate between is this normal .it doesnt seem to effect the bike at all . any idea's.? i'm also looking for a headlight rod assy if anyone has one they want to part with. cheer's darren
Title: Re: clutchplates
Post by: Arnie on December 05, 2009, 05:03:47 PM
No, that's not normal.  It might only affect the clutch in high torque situations once you have some wear on the plates.  Then again, maybe some previous "mechanic" tossed that extra steel in to take up slack from a slipping clutch.  How many steels and how many friction plates are in there?

Cheers,
Arnie
Title: Re: clutchplates
Post by: wheels on December 05, 2009, 05:14:26 PM
hey arnie hmm i'll have to pull it apart again and have a count up .iv'e bought a new set of friction plate's to put in.  im waiting for the chriisy break to do it cause i need the bike for work at the moment.
Title: Re: clutchplates
Post by: wheels on December 05, 2009, 06:01:56 PM
arnie i just took a count i have 8 steels and seven friction plates . i just had a look at the clutch diagram from yamaha and it shows friction plate 2, then ring,clutch boss . on mine it's friction plate 2 then steel then ring, clutch boss . thats not right is it?
Title: Re: clutchplates
Post by: wheels on December 05, 2009, 06:06:45 PM
sorry miss count it's 8 each
Title: Re: clutchplates
Post by: wheels on December 05, 2009, 06:29:59 PM
does anyone know how to remove the wire clip thats holding the friction plate 2 on . behind the wire clip there is a steel and friction plate is this correct?
Title: Re: clutchplates
Post by: the fan on December 05, 2009, 11:38:57 PM
If you look closely you will see the ends of the wire ring on the inside of the inner basket. Use a set of small needle nose pliers to ease 1 of the ends out through the hole. this will remove the tension from the wire and the second will pull right out. There should only be a friction plate, anti judder spring and the seat for the spring located behind the wire clip.

Title: Re: clutchplates
Post by: wheels on December 06, 2009, 12:06:28 AM
hey the fan i finally got the wire out with a bit of paitence  . so there shouldnt be a steel behind the wire clip just friction 2. i had a look at the back of the steel  and it has a  wear mark on it from the spring clutch boss i suppoes  so i should remove it ?
Title: Re: clutchplates
Post by: the fan on December 06, 2009, 12:30:58 AM
I could be wrong, but based on the schematic there is only a fiber plate:
http://fiche.worldofpowersports.com/wps/Yamaha_OEM/YamahaMC.asp?Type=13&A=104&B=14 (http://fiche.worldofpowersports.com/wps/Yamaha_OEM/YamahaMC.asp?Type=13&A=104&B=14)

It has been several months since I did deans and I really can't remember
Title: Re: clutchplates
Post by: racerrad8 on December 06, 2009, 07:50:41 AM
Quote from: wheels on December 06, 2009, 12:06:28 AM
hey the fan i finally got the wire out with a bit of paitence  . so there shouldnt be a steel behind the wire clip just friction 2. i had a look at the back of the steel  and it has a  wear mark on it from the spring clutch boss i suppoes  so i should remove it ?

Throw that wire snap ring in the garbage; it was required for engine assemble at the factory. I have seen many that have come off of a running engine and get chopped into little pieces. The pieces the get ingested by the oil pump causing major damage to it. ***Throw it away***

I also removed the cushioning spring and base and throw them away also; your choice. The pack from the factory was a narrow clutch disc on the bottom with cushioning spring, then steel & friction staggered all the way out to the pressure plate where the second narrow clutch disc is installed at the pressure plate.

If you throw away the cushioning spring in the bottom of the pack, you can now fit a full size clutch disc in there which then gives you seven regular discs and the one narrow at the pressure plate.

Randy - RPM
Title: Re: clutchplates
Post by: wheels on December 06, 2009, 10:43:36 PM
so taking out the cushioning spring and base had no effect on the overall clutch. did this improve your clutch?   or was it still the same.
Title: Re: clutchplates
Post by: racerrad8 on December 07, 2009, 10:26:59 AM
If you change out the narrow rear disc with the wide one, you will get that much more friction surface area. I believe it does allow the clutch to engage quicker as the "cushioning" spring is designed to cushion the application.

Randy - RPM
Title: Re: clutchplates
Post by: wheels on December 07, 2009, 01:57:37 PM
no worries randy i'll give it a go.cheer's
Title: Re: clutchplates
Post by: Ratchet_72 on December 07, 2009, 08:55:35 PM
I did what Randy's suggesting to you and it all worked just fine, probably held better with another disc even.
Title: Re: clutchplates
Post by: wheels on December 07, 2009, 09:13:14 PM
so you removed the spring clutch boss and the plate seat+ the narrow friction plate  and put the wider disc in and it works just fine?
Title: Re: clutchplates
Post by: tqmx1 on December 07, 2009, 10:57:23 PM
Thats what we did on Jasons and one stock spring it never slipped and it left the clutch pressure stock (no Charles Atlas left hand) :good:
Title: Re: clutchplates
Post by: wheels on December 08, 2009, 01:05:07 AM
well  then sounds like the thing to do. :good2:
Title: Re: clutchplates
Post by: wheels on December 12, 2009, 11:22:18 PM
Quote from: racerrad8 on December 06, 2009, 07:50:41 AM
Quote from: wheels on December 06, 2009, 12:06:28 AM
hey the fan i finally got the wire out with a bit of paitence  . so there shouldnt be a steel behind the wire clip just friction 2. i had a look at the back of the steel  and it has a  wear mark on it from the spring clutch boss i suppoes  so i should remove it ?

Throw that wire snap ring in the garbage; it was required for engine assemble at the factory. I have seen many that have come off of a running engine and get chopped into little pieces. The pieces the get ingested by the oil pump causing major damage to it. ***Throw it away***

I also removed the cushioning spring and base and throw them away also; your choice. The pack from the factory was a narrow clutch disc on the bottom with cushioning spring, then steel & friction staggered all the way out to the pressure plate where the second narrow clutch disc is installed at the pressure plate.

If you throw away the cushioning spring in the bottom of the pack, you can now fit a full size clutch disc in there which then gives you seven regular discs and the one narrow at the pressure plate.

Randy - RPM    randy ,i got rid of that snap wire took out the cushioning spring and base .i replaced the clutch plates with a new set with the wider one on instead of the narrow one.  i also put a slave cylinder kit through.the clutch lever is a little heavier than before is this normal?

Title: Re: clutchplates
Post by: Arnie on December 14, 2009, 12:04:34 AM
Thanks Randy,

I've been having some minor clutch dragging since I changed to new frictions and 14mm master.  Not a huge hassle, but difficult to get to neutral.  I've now just replaced the thin friction with a full-size one and removed the cushion spring & wire and it all works just fine.

Cheers,
Arnie
Title: Re: clutchplates
Post by: rossco on December 14, 2009, 05:32:41 AM
There you go,never too old to learn ,hey Arnie.Might try it myself
rossco
Title: Re: clutchplates
Post by: paulfj03 on July 07, 2010, 06:55:31 AM
+1 on Randy's reccomendation to remove that wire circlip!!!!!!!

I started the teardown of the 1100 motor.. I was removing the clutch plates and found the circlip wire strewn throughout the plates and the friction plate next to it looked like this:

(http://i794.photobucket.com/albums/yy230/paulfj03/utf-8BSU1HMDAwMTUtMjAxMDA3MDYtMjIzM.jpg)

     

there is approx 2" missing from the wire circlip!

(http://i794.photobucket.com/albums/yy230/paulfj03/utf-8BSU1HMDAwMTYtMjAxMDA3MDYtMjIzM.jpg)

hopefully I find the missing chunks of the friction plate and the wireclip without any signs of wear anywhere :ireful:
not good! :mad:

At least I removed that wire (because of this discussion) from the 86 when the plates were changed recently ! I will be doing preventative maintenance to the others and that wire is going in the garbage! :mad: :ireful: :ireful: :ireful: :mad: :bomb:






Title: Re: clutchplates
Post by: Pat Conlon on July 07, 2010, 12:12:25 PM
 Hey Thanks Paul. Can I use your post and photos in our "slipping clutch" write up we have in the Files section? It will be a help.

Your photos are great and worth a thousand words.     Pat
Title: Re: clutchplates
Post by: paulfj03 on July 07, 2010, 09:03:47 PM
Of course. Hope it helps.