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Clutch Noise

65K views 44 replies 19 participants last post by  insane7854  
#1 ·
All,

When my bike is in neutral with the clutch lever out I hear a knocking (more like a rumbling) noise coming from the cranckcase. When I pull the lever in it stops. When I'm in gear and riding everything is fine. I looked at the pull rod, pressure plate and the first few plates I could get to without removing the basket/clutch boss. Everything looked fine.

Does anyone know what the problem may be? :dunno I'd like some suggestions before I pull the whole thing out... :)
Thanks

Bike: 04 R1
 
#3 ·
I would think that the clutch would be in worse shape (slippage or hard shifting)for it to need changing out...my clutch operates smoothly, the only problem is a rumbling noise coming from the crankcase when the bike is in neutral and the lever's out. Then the rumbling isn't as bad once the bike comes up to temperature. The service manual shows a dampner spring and seat on the clutch boss and it says there is no need to remove these items unless there's clutch chatter. That leads me to believe that there may be a problem with the dampner spring and/or seat because chattering perfectly describes the sound coming from the cranckcase. Anyone have any more ideas on this? Does anyone think it would be necessary to replace the whole clutch or just only the parts that are needed? Also do I need a clutch holding tool in order to remove the boss nut?

Thanks fellas :thumbup
 
#7 ·
Hey people,
I have the same problem but the other way arround, when the bike is in neutral everything is ok but when I pull in the clutch lever, go to 1st gear let go the clutch lever; there is a noise and stops if I pull in the clutch. same thing if I go to 2nd and up ( this is done while the bike is on a rear stand).
For what I've read here in the forum and some others is the clutch..is it possible?
Bike 2006 R1 with 5400 miles I just got it last jun with 4K miles

If the clutch is the problem... how much will it cost to replace it.

Thanks
 
#9 ·
most of time its normal for some noise, then when u pull clutch in.. it goes away. again normal! now lotsa noise... not normal. what it is most of time.... is the gear thats on back of clutch basket, that runs with crankshaft. in back of basket, there are 6 springs(non removeable) these are to damped vibrations from crankshaft driving input shaft(and clutch basket). these springs do become loose over time, and noise gets little louder. when u put pressure on basket by pulling in clutch lever, the noise stops. again mostly normal..... as long as its not loud noise. good idea to have someone look at it.


just making noise, wont be clutches. its possibilty, it could be broken plate or sort... but if clutch isnt slipping.....then its prolly not clutch. get stethescope from harbor freight (or use screwdriver putting metal end onto clutch cover and ur ear to plastic handle) and have someone start it and pull clutch in and out if u cant reach it urself while holding ur stethescope. now repeat process on other side putting ur listening device onto front sprocket cover, and then onto top of engine in back(top of tranny). ur will be amazed at what u can hear.

good idea to have someone look at it if u think its bad. better safe than sorry. course if u take it to dealer...they will want to pull clutch out and charge u, even if nothing is wrong. but u can also remove clutch cover and pull everthing out, plates, and basket...then look for broken plates, or broken tower on clutch hub, or broken finger on clutch basket.
 
#19 ·
most of time its normal for some noise, then when u pull clutch in.. it goes away. again normal! now lotsa noise... not normal. what it is most of time.... is the gear thats on back of clutch basket, that runs with crankshaft. in back of basket, there are 6 springs(non removeable) these are to damped vibrations from crankshaft driving input shaft(and clutch basket). these springs do become loose over time, and noise gets little louder. when u put pressure on basket by pulling in clutch lever, the noise stops. again mostly normal..... as long as its not loud noise. good idea to have someone look at it.


just making noise, wont be clutches. its possibilty, it could be broken plate or sort... but if clutch isnt slipping.....then its prolly not clutch. get stethescope from harbor freight (or use screwdriver putting metal end onto clutch cover and ur ear to plastic handle) and have someone start it and pull clutch in and out if u cant reach it urself while holding ur stethescope. now repeat process on other side putting ur listening device onto front sprocket cover, and then onto top of engine in back(top of tranny). ur will be amazed at what u can hear.

good idea to have someone look at it if u think its bad. better safe than sorry. course if u take it to dealer...they will want to pull clutch out and charge u, even if nothing is wrong. but u can also remove clutch cover and pull everthing out, plates, and basket...then look for broken plates, or broken tower on clutch hub, or broken finger on clutch basket.
those springs wont change it. its springs in back of basket..the damper springs.. thats what u hear. if u unbolt ur basket, turn it over.. u will see couple springs.. and there little loose. thats prolly noise in 99% of cases

What Springs on the back of the basket? I don't see any, but I'm looking at microfiche...:crash

http://fiche.ronayers.com/Index.cfm...YearID/45/Year/2004/ModelID/1891/Model/YZFR1S_YZFR1/GroupID/344283/Group/CLUTCH_

I see six little tab things on the back of the basket in the microfiche illustration, is that what you mean? And if the springs are not removable and are loose, what do you do replace the whole basket?

Thanks
 
#10 ·
Sal R1
The noise is kind of like scratching noise (not a steady noise), like if you were riding and somehow caught a plastic on the bottom of the bike and its just touching scrapping ? the floor as you drive. (I hope it makes sense)
I can hear the noise while I drive, bike has a twobrothers exhaust.

I went riding the other day 12-24, like a 40 mile ride back and forth; and on my way back home I was doing about 70 miles and then as I was getting close to traffic I started to downshift and that?s when the noise came up. I pulled over? get off the bike, take a look for something unusual but nothing; made it home ok. Clutch, power, speed everything ok, but now with the noise.

--------------------------------------
1LongR1
The only thing I have done to my bikes (1st bike ?96 750 gixxer 2nd bike?00 750 gixxer) now this one is: Oil change, front brake pads, air filter and that?s about it. But doing some like that I don?t think I can do. (u can also remove clutch cover and pull everything out, plates, and basket...then look for broken plates, or broken tower on clutch hub, or broken finger on clutch basket.)
I wish I could learn how to do it but like with someone that knows right next to me :secret:

Now about? (get stethescope from harbor freight (or use screwdriver putting metal end onto clutch cover and ur ear to plastic handle) and have someone start it and pull clutch in and out if u cant reach it urself while holding ur stethescope. now repeat process on other side putting ur listening device onto front sprocket cover, and then onto top of engine in back(top of tranny). ur will be amazed at what u can hear) I think I can do that :lol

I guess I?m going to have to take it somewhere and let them ripped me off just because I don?t know how to fix it my self :nforc:
I hate seen the bike just sitting there in the garage.:dunno

Thanks for the help anyway :fork
 
#11 ·
Well I went to two different dealers, told them what the problem was and had them listen to my bike. Both dealers said the same thing; they wouldn't worry about it as long as the clutch isn't slipping. The rumbling is the worst on mine when the engine is cold, but it subsides quite a bit once the bike gets up to temperature. I think I'll keep rolling until I'm ready to buy new plates/springs or the problem gets worse.
 
#12 ·
I'll probably have to do the same thing, I just need to borrow a truck :) cuz I dont what to ride it to the dealer (just to be safe). The other thing is that when the noise came up I had about 8 miles to go until I made it home (like I said before...with no preblems while riding, just the noise) :rant

:fork
 
#13 ·
trucking it to dealer good idea/.. that way it will be cold and if noise is louder then...they will hear it. but in end.. prolly tell u nothing is wrong with it. be nice if u could find another rider in ur area with same bike.. that way u could listen to theres and see if it makes same noise.
 
#14 ·
update
today after work... i took my baby for a ride (just on the street) and there was no noise :fire
but i noticed that if i rev it up on neutral the noise is there like a metal peace is hitting inside. Now its a different noise :rant or it may be different for a while.
Just wanted to let y'all know.

:fork
 
#18 ·
those springs wont change it. its springs in back of basket..the damper springs.. thats what u hear. if u unbolt ur basket, turn it over.. u will see couple springs.. and there little loose. thats prolly noise in 99% of cases
 
#23 ·
those springs wont change it. its springs in back of basket..the damper springs.. thats what u hear. if u unbolt ur basket, turn it over.. u will see couple springs.. and there little loose. thats prolly noise in 99% of cases
Ok I'm still tired of the rumbling noise...I think you may be right about the damper springs. I don't believe its the clutch plates because there's no slippage at all. I'm going to check the damper springs and get new ones if necessary. I'll be sure and let you know the results...
 
#25 ·
Well, I took off all the plates and clutch boss and found the culprit-- a broken friction plate. Its the friction plate that sits behind the wireclip and plain plate on the clutch boss. From looking at the plate I could tell it was broken in two pieces but only one was there...I don't know where the other piece went, but its no bigger than 1/4". Hopefully it didn't fall in the oil pan but if it did, I'm hoping it maybe came out when I did one of my oil changes...I looked in the pan with a flashlight and could see the bottom of the pan and I didn't see anything but I could only see like one side of the pan. I may undo the pan and take a look just to be sure.

The broken plate should be the problem, but I'll let you know if I still have rattling or not once I get all new plates and put everything back together.
 
#28 ·
I have a 06 R1 and From day one with zero miles on it. It has always made the noise coming from the clutch. pull the lever in and it goes away. I have took it in to the dealer at 8000k miles and asked them about it and have broken the bike in the correct way. I NOW HAVE 21,000K MILES ON IT!!!! I have riding to n.c and back and and it still maje the noise. I was told it was normal as long as it doesn't get real loud and my clutch wear is great!!!
 
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#29 ·
Yo dude i got a 01 w/ 12.000 miles and it does the same thing, makes noise with the clutch lever out in neutral but ill pull the lever in and it goes away. even if i rev it in neutral w/ the clutch lever out it hesitates, but pull the clutch in and it revs up w/ no hesitation. the clutch doesnt slip, the only thing is that it shifts into 2nd hard, sometimes it smacks into 2nd.:confused:
 
#31 ·
Yo dude i got a 01 w/ 12.000 miles and it does the same thing, makes noise with the clutch lever out in neutral but ill pull the lever in and it goes away. even if i rev it in neutral w/ the clutch lever out it hesitates, but pull the clutch in and it revs up w/ no hesitation. the clutch doesnt slip, the only thing is that it shifts into 2nd hard, sometimes it smacks into 2nd.:confused:
Went to the dealer the other day and talked to one of the older mechanics (I trust the old school guys more than the younger ones). He said that there is some wear that occurs with the basket and the clutch boss and this causes a gap between them. The gap is whats causing things to rattle. He listened to my bike and said that the rattling is normal for the mileage I have on my bike (23K). If it gets to be too annoying I may go ahead and get new parts anyway...
 
#36 ·
hi guys , ive been looking into this problem recently , i took my clutch completely off on monday and i took it into my work (im an engineer) to check it out , my 05 R1 has done 64,500 miles , the basket bore is totally fine , as is the needle roller bearing and the bush , im convinced the problem is with the oil/water pump drive sprocket that meshes into the back of the outer clutch basket , im taking that part into my work today to check it out , i will let you guys know how i get on with it
 
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#39 ·
im sorry dude but im strugglin to figure out how the exhaust valves clearence gaps could possibly affect clutch noise , im glad your happy with the results of your hard work tho
 
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#41 ·
Hey everyone, when i pull my clutch in I can feel considerably less vibrations in my handlebars, as soon as i let the clutch lever out the vibration get worse. It also seems noisier with the clutch out but from what i read thats normal. My bike shifts fine and doesn't slip. I tried the search but couldnt find anything dealing with vibrations affecting the clutch engaged/disengaged. Anyone else have this problem? The vibration is significant and alot smoother when i pull the clutch lever in. What could it be? Thanks for any help!
 
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