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-   -   Clutch wont disengage ( https://www.xt660.com/showthread.php?t=26248)

Marcus90 26-09-16 18:06

Clutch wont disengage
 
Hi! i recently change to a "new" engine and i had to use my old clutch that was working fine on my old bike. When i mounted the new engine into the frame and got everything together i noticed that the clutch wont disengage, i can change gears freely even when the engine is runing (without using the clutch and standing still). When i pull the clutchleaver it moves but i get the feeling that im pulling something that dont want to move, its really really stiff and hard, nothing like a clutch should feel like. if i put the engine into gear while its turned of i can see the clutch spining around as i push the bike around with no problem. The clutchplates are also a bit lose when i mounted the whole clutch in place, i can move the top plate about 2-3mm in the clouchbasket sort of thing.

anyone had this problem before or know something that might help?

/ Marcus from Sweden

Marcus90 26-09-16 18:17

Quote:

Originally Posted by Pepsi (Post 225226)
might be my misinterpretation but if your clutch plates are not in the correct order and particularly the outer most plate has its not been sat in its correct position you will get zero clutch lever movement. Also, you have to make sure your clutch 'actuation arm' fitted to the clutch cover is correctly aligned with the teeth on its drive mechanism as you replace the clutch cover over the clutch basket. Both subjects are covered in searchable threads here.

Hi! I placed all the plates in the correct order (I have a repairmanual for the bike) and i fited the arm at the correct place. Still the leaver wont move and i can start the bike i first gear whitout touching the clutch.

Pleiades 27-09-16 00:04

Quote:

Originally Posted by Marcus90 (Post 225229)
Hi! I placed all the plates in the correct order (I have a repairmanual for the bike) and i fited the arm at the correct place. Still the leaver wont move and i can start the bike i first gear whitout touching the clutch.

Firstly, being able to start the bike in first gear without touching the clutch is nothing to do with the clutch! It'll be the either a duff clutch lever switch of dicky neutral light causing the start inhibit system not to inhibit starting.

As for the clutch, as Pepsi suggests, nine times out of ten when this problem occurs it is the pull rod and release lever/shaft that are out of alignment, gears not meshed or set in the wrong position. What you have to remember is the teeth on the pull rod must face backwards before the cover is replaced and the release arm on the cover must be pointing to the back of the bike also (parallel to the casing). As you push the cover home the release arm will (or should) move round to its normal position. At this point, when the cover is bolted down hand-tight, push the release arm forward as far as it will go to check the index/punch marks on arm and casing line up. If not remove the cover, mover the release arm back or forward at touch corresponding to how far out the punch marks were.

A lot of people (and we had one only last week) make the mistake of trying to line up the punch marks before replacing the cover which results in... a permanently engaged clutch!

I know you say you fitted the release mechanism correctly, but just double check by removing the clutch cable and push the release arm forward with your finger until it can't move anymore. Do the punch marks line up? Does the release arm move forward at all?

Marcus90 27-09-16 18:44

Quote:

Originally Posted by Pleiades (Post 225258)
Firstly, being able to start the bike in first gear without touching the clutch is nothing to do with the clutch! It'll be the either a duff clutch lever switch of dicky neutral light causing the start inhibit system not to inhibit starting.

As for the clutch, as Pepsi suggests, nine times out of ten when this problem occurs it is the pull rod and release lever/shaft that are out of alignment, gears not meshed or set in the wrong position. What you have to remember is the teeth on the pull rod must face backwards before the cover is replaced and the release arm on the cover must be pointing to the back of the bike also (parallel to the casing). As you push the cover home the release arm will (or should) move round to its normal position. At this point, when the cover is bolted down hand-tight, push the release arm forward as far as it will go to check the index/punch marks on arm and casing line up. If not remove the cover, mover the release arm back or forward at touch corresponding to how far out the punch marks were.

A lot of people (and we had one only last week) make the mistake of trying to line up the punch marks before replacing the cover which results in... a permanently engaged clutch!

I know you say you fitted the release mechanism correctly, but just double check by removing the clutch cable and push the release arm forward with your finger until it can't move anymore. Do the punch marks line up? Does the release arm move forward at all?

Hi thanks for answering! When i push the release arm forward until i cant move it more, its in the right place on the markings. When i then attach the cable to the clutch arm its totaly stiff. I can barely move the clutch leaver at all. When i took of the clutch cover again i noticed that the clutch plates actually move a bit, atleast the outer most plate. I can wiggle it about 2mm give or take. Is this right? im 100% that i fitted the whole clutch assembly correct.

i can start the bike then put it into firstgear, with both the clunking nature of puting the bike in first gear and the neutral light turning off.

Pleiades 27-09-16 19:06

Quote:

Originally Posted by Marcus90 (Post 225270)
i can start the bike then put it into firstgear, with both the clunking nature of puting the bike in first gear and the neutral light turning off.

Sorry, I though you meant start it in first, rather than start it and then change into first!

Quote:

Originally Posted by Marcus90 (Post 225270)
When i push the release arm forward until i cant move it more, its in the right place on the markings. When i then attach the cable to the clutch arm its totaly stiff.

Next obvious question: Is the clutch cable moving freely through the outer?

Quote:

Originally Posted by Marcus90 (Post 225270)
When i took of the clutch cover again i noticed that the clutch plates actually move a bit, atleast the outer most plate. I can wiggle it about 2mm give or take. Is this right?

No it isn't. There should be no movement or gaps between the plates. If there is the most likely cause is the pressure plate isn't engaged properly with the basket and as a result the pull rod won't do its job either. Did you remember the thrust washer before refitting anything else? Did you remember the anti-judder seat and spring, which must be fitted the right way round (marked 'outside'). Are the plate tabs correctly located in the correct slots marked with triangles on the basket? The first (innermost) friction plate fits into the deeper right-hand slot (looking when the slots are at the top) and the final friction plate goes in the shallow left-hand slot.

Marcus90 27-09-16 19:19

Quote:

Originally Posted by Pleiades (Post 225271)
Sorry, I though you meant start it in first, rather than start it and then change into first!

No problem my be my bad english aswell :)

Quote:

Originally Posted by Pleiades (Post 225271)
Next obvious question: Is the clutch cable moving freely through the outer?

Yes it moves freely.

Quote:

Originally Posted by Pleiades (Post 225271)
No it isn't. There should be no movement or gaps between the plates. If there is the most likely cause is the pressure plate isn't engaged properly with the basket and as a result the pull rod won't do its job either. Did you remember the thrust washer before refitting anything else? Did you remember the anti-judder seat and spring, which must be fitted the right way round (marked 'outside'). Are the plate tabs correctly located in the correct slots marked with triangles on the basket? The first (innermost) friction plate fits into the deeper right-hand slot (looking when the slots are at the top) and the final friction plate goes in the shallow left-hand slot.

Well i fitted all the plates in the correct order as is shown in my Haynes repairmanual for the bike. I do have the final friction plate on the left sid between the two triangels and the rest on the left side. the spring plate is mounted with the text outwards. im thinking about the thrust washer if i fitted that correctly or not. I seem too remember that i fitted it between the outer basket and the inner basket but i recall that i thought it looked a bit odd that the washer could move around the axel freely, i might have fitted it wrong after all.

I will be checking it later this weak when i get time to have a look at it.

Pleiades 27-09-16 19:32

Quote:

Originally Posted by Marcus90 (Post 225272)
im thinking about the thrust washer if i fitted that correctly or not. I seem too remember that i fitted it between the outer basket and the inner basket but i recall that i thought it looked a bit odd that the washer could move around the axel freely, i might have fitted it wrong after all.

I will be checking it later this weak when i get time to have a look at it.

The thrust washer goes on the shaft before anything else and locates on the splines. It should not be able to spin freely at all.

TBH, without seeing it I can't be sure, but there seems like something is not quite right about the way it has all gone together which has left gaps between the plates and preventing the pull rod moving the pressure plate. If I was you, for peace of mind and for the sake of an hour of your time, I'd take the whole assembly out and start right back at the beginning. We can sit here for ages second guessing what's amiss, but you'll never know for sure until you pull it apart again.

Marcus90 27-09-16 19:33

Quote:

Originally Posted by Pleiades (Post 225273)
The thrust washer goes on the shaft before anything else and locates on the splines. It should not be able to spin freely at all.

TBH, without seeing it I can't be sure, but there seems like something is not quite right about the way it has all gone together which has left gaps between the plates and preventing the pull rod moving the pressure plate. If I was you, for peace of mind and for the sake of an hour of your time, I'd take the whole assembly out and start right back at the beginning. We can sit here for ages second guessing what's amiss, but you'll never know for sure until you pull it apart again.

Yea i agree! Better just pull it all down again and start over, not that big of a job anyway :) Thanks for your help man!

Pleiades 27-09-16 19:39

No worries. Keep us posted with how things turn out.


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