01 yz426f questions about clutch/metal in oil


18 replies to this topic
  • markt503

Posted March 20, 2015 - 03:22 PM

#1

hey guys
Got a couple pictures for u to look at!
4-5th slippery, funny sound, sticking clutch.....
Why would this happen?

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Edited by markt503, March 20, 2015 - 09:31 PM.


  • mlatour

Posted March 20, 2015 - 04:15 PM

#2

Perhaps the pressure plate bolts had been loose for a while,

 

less spring pressure = slipping clutch

loose to move around =  springs rubbing on bolt bosses



  • markt503

Posted March 20, 2015 - 04:34 PM

#3

Makes since, i should of used the tourq wrench to check em before I pulled em off

  • 03yzf450-kuke

Posted March 20, 2015 - 06:37 PM

#4

What do you mean by slipping and sticking?
And what are the pictures supposed to be showing? If its the marks from the springs that is normal

  • 03yzf450-kuke

Posted March 20, 2015 - 06:40 PM

#5

As far as I have seen any way since I just looked at a bunch of different used ones for my 03 450 cas my basket fingers were very deeply notched

  • markt503

Posted March 20, 2015 - 09:26 PM

#6

Normal to leave chunks in the oil? risking a rebuild,the pics are the groves worn in, some groves are sharp enough to cut ur finger lol that's the pressure plate, springs and boss

  • markt503

Posted March 20, 2015 - 09:27 PM

#7

When I shift gears the clutch don't engage rite away, I like its hanging up on somthing

  • markt503

Posted March 20, 2015 - 09:31 PM

#8

I added a pic of the oil change after 2-3 hours

  • mlatour

Posted March 20, 2015 - 09:50 PM

#9

When I shift gears the clutch don't engage rite away, I like its hanging up on somthing

 

Worn clutch basket, and/or in your case,

 

compressed clutch springs hanging up on those sharp worn grooves on the bosses.



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  • 03yzf450-kuke

Posted March 21, 2015 - 05:04 AM

#10

Sry I did not see the last picture til now. Is that aluminum filings? What does your basket fingers look like

  • 03yzf450-kuke

Posted March 21, 2015 - 05:09 AM

#11

I also do know that every single clutch I have looked at on eBay has markings from springs same as yours. Sharp enough to cut fingers though I don't know. Post a pic of your clutch basket with a close up of the fingers so we can get a better idea
Also when grayracer 513 comes on hell prolly have you an answer right away

  • 03yzf450-kuke

Posted March 21, 2015 - 05:19 AM

#12

Have yo put all your clutch together and pulled your lever to try and see what's going on

  • 03yzf450-kuke

Posted March 21, 2015 - 05:24 AM

#13

Here's my old clutch. Same markings same as all on eBay.

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  • 03yzf450-kuke

Posted March 21, 2015 - 05:26 AM

#14

I got a new used one off eBay cas my basket fingers looked like this

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  • 03yzf450-kuke

Posted March 21, 2015 - 05:30 AM

#15

Thing is my bike would just slam into gear and wanna walk in gear with clutch disengaged never slip and I also never had filings like that. I would take a closer look at everything and check everything to spec
You can get any manual online for free

  • grayracer513

Posted March 21, 2015 - 08:35 AM

#16

hey guys
Got a couple pictures for u to look at!
4-5th slippery, funny sound, sticking clutch.....
Why would this happen?

 

The pictures of your pressure plate, clutch boss, and springs are nothing to worry about.  The springs get bounced back and forth against those parts with sudden speed changes, like shifting and such.  It's normal, and mine looks worse.  The area of the clutch boss and basket that is a bigger concern is the point where the plates contact them. 

 

Metal in the oil is a normal thing with YZF's because the transmission uses the same oil, and transmissions shed metal.  The amount and size/shape of the debris is what's important, not its presence or absence.

 

If 4th and 5th are causing a jerking, skip-and-catch sensation that happens only under a load, the 3rd, 4th, and 5th gears on the main shaft and the front (#2) shift fork need to be replaced.



  • markt503

Posted March 21, 2015 - 04:25 PM

#17

Yes the basket and boss are the main concern for me as well, I as far as putting it back together and checking to see what it does, I already know the disks move around and are wobbly while everything is together, gunna go ahead and replace the entire clutch, keep flushing the oil threw to get rest of the melatonin shavings out, if shavings or clutch don't feel better I will dig in further

  • markt503

Posted March 21, 2015 - 04:26 PM

#18

I'll take pics of how far it moves, I still need a caliper to measure spec

  • markt503

Posted March 21, 2015 - 04:28 PM

#19

BTW, all the shavings just slide off the magnet,I didn't find 1 single piece to stick') I spend about a hour playing in the oil lol





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