Clutch help needed

Got the bike out today to clean it and make sure it's all ok for the MOT i'm hopefully getting on Monday, starts up no problem and ran through a couple of gears while it was on the ABBA stand and all looked fine ( i have recently had the clutch plates off to clean up as the clutch was slipping at high revs) I've just fitted the 0.40 oil jet too.

My problem....when I took the bike off the stand to ride it back to the shed there was no drive :dunno:dunno I tried 1st & 2nd gears but there was nothing, not even tried to move so i put it back on the stand and it changes gear and speeds up as if normal.

Tried it again off the stand and revved it to about 3000 rpm but nothing happening. Was scared the bike was suddenly going to grip and shoot off leaving me stood there like John fookin Wayne :laugh

Any ideas peeps :dunno are my clutch plates knackered or is it something i've done :dunno

Did you ride the bike after cleaning the clutch.
When you cleaned the clutch did you coat it in oil before you reassembled because it runs with oil in between or the clutch will burn and slip.
If you try putting the bike in 6th and pushing it if the clutch is slipping you will be able to push it.
Then disconnect the slave cylinder on the bikes left and try again if it bites then it is the hydrolic side and not the clutch.
Just a couple of thing to try.

Mick Oliver said:

Did you ride the bike after cleaning the clutch.
When you cleaned the clutch did you coat it in oil before you reassembled because it runs with oil in between or the clutch will burn and slip.
If you try putting the bike in 6th and pushing it if the clutch is slipping you will be able to push it.
Then disconnect the slave cylinder on the bikes left and try again if it bites then it is the hydrolic side and not the clutch.
Just a couple of thing to try.

Click to expand...

Not ridden it since i cleaned it, and i did coat with oil before reassembling :confused the bike changes gear ok when on the stand, it's only when there's wieght on the wheel it doesn't drive. I would have thought the hydraulic side would be ok if it all works fine on the stand :dunno

I'll try the sixth gear idea tomorrow :thumbup

Did you get all the plates in the correct order, sorry but have to ask?

I'm pretty sure i did, but i might have another look tomorrow amb, would that have the symptoms i have :dunno why does it drive when the weight is off :dunno

I had a printout of the proceedure how to do it and i'm sure i followed it correctly :confused

If it is clufch slip it will work with no load to drive against

I had the same problem mine was the clutch plates mate. it wouldn't even go on flat road! dang. i ended up changing my clutch plates. I hope your problem is simpler than that. have your tried changing the clutch lever setting? The only other way I could think of this could happen is only if your clutch rod is pressed half way because of some mechanical problem.. Remove your slave cylinder and try to start your bike without clutch if it jumps and stalls that means your issue could be Slave Cylinder or Lever... If it has no drive like that it sounds like your clutch plates are worn out. good luck how many miles you got on that bike with those clutch plates? if you ride the **** out of them that's most likely what it is. if you change them just torque the bolts right and use right material rubber or original gasket for the slippery clutch affect and to prevent **** getting in your oil. my two cents

Mick Oliver said:

If you try putting the bike in 6th and pushing it if the clutch is slipping you will be able to push it.
Then disconnect the slave cylinder on the bikes left and try again if it bites then it is the hydrolic side and not the clutch.
Just a couple of thing to try.

Click to expand...

Tried pushing it and it can be moved in every gear :roll ( not disconnected slave cylinder tho'.)

superyellow said:

If it has no drive like that it sounds like your clutch plates are worn out. good luck how many miles you got on that bike with those clutch plates? if you ride the **** out of them that's most likely what it is. if you change them just torque the bolts right and use right material rubber or original gasket for the slippery clutch affect and to prevent **** getting in your oil. my two cents

Click to expand...

I think i'll order a set of plates, i've probably roughed em up a little too much when i stripped them out and cleaned them up :jack

Does fusebox sell these :dunno might as well throw some business his way being a fellow forum member :thumbup

Sproc, I'd be surprised if the plates just suddenly gave up the ghost after you scraped em. Sounds like something is holding the clutch disengaged. I'd try pulling the slave off and checking around before you buy a new set.

A303 said:

Sproc, I'd be surprised if the plates just suddenly gave up the ghost after you scraped em. Sounds like something is holding the clutch disengaged. I'd try pulling the slave off and checking around before you buy a new set.

Click to expand...

But it all works when on the stand :confused changes gear no problem :confused what does taking the slave off do to it :dunno

sprocker said:

But it all works when on the stand :confused changes gear no problem :confused what does taking the slave off do to it :dunno

Click to expand...

Yeah, but it's working with no resistance on it, which could just be oil drag. Have you tried holding or sticking your boot on the back wheel (er, be careful here) to see if it will overcome some force?

A303 said:

Yeah, but it's working with no resistance on it, which could just be oil drag. Have you tried holding or sticking your boot on the back wheel (er, be careful here) to see if it will overcome some force?

Click to expand...

Yes i tried that and i can slow it down. I accelerated it up to 30mph through the gears, if it was just oil drag would i be able to accelerate like that :dunno

Mate, if you can slow it down with your boot then there's virtually no drive at all, so the plates are either totally shot (like you roughened them up enough to actually make them thinner?! Doubt it.) or it's not engaging properly. Got to be worth pulling it apart a bit more if it saves you the cost of a set of clutch plates.

You think i should take the plates apart again or take the slave off (and what am i looking for if i do take the slave off :dunno )

Also, could it be it just needs bleeding :dunno i have just fitted a 0.40 jet too but read that it wasn't necessary to bleed :confused

take the slave off it's easy and hold the piston in with C clamp. and A) put the bike on stand and try to start it with Neutral and suddenly change to the first gear with giving plenty of gas. you might wanna zip tie your front brake somehow and then while it's running my fellow friend A303 said try to stop the wheel with a boot or a brick or something if you can slow it down that's no bueno. B) start the bike in Neutral and suddenly change the gear to the first while giving plenty of gas(prepare to squueze the clutch) this is dangerous however less dangerous then the Females without gears. lol
if the bike jumps and stalls or you can successfully take off You did it! It pops a wheelie mate and If you don't wanna have and adrenaline rush I think you should try C) Adjust your Idle RPM first and use tolerance if you there will be an altitude change on your short trip!!! with the Clutch slave removed(no clutch!!) find a safe hill a good one and start the bike in Neutral and push it down the hill and put it in 1st and give gas at the same time and you should safely go down the hill and if it's revving and doesn't have torque it's 99.9% your clutch plates which are fooked! if it has drive just try not to go less thatn 10 miles per hour so you won't stall that big *** bike and make bunch of right turns and blow all the red lights and avoid the pedestrians and the cops like i did without a clutch and go back to your garage safely and remember you don't have a freaking clutch don't stall the bike or you will need another hill to start it back!!!!! Before stopping don't forget to put it in Neutral... This is very easy less messy and time consuming than opening that nasty flywheel cover and while you are at it gimme your rubber gasket. lol

Thanks for the tips superyellow, I might try option A, but the others no feckin way mate thats just gonna end in disaster:lolI aint as brave as you :biggrin
I'll report the results tomorrow :thumbup

Super, you're a nutter mate:thumbup
Sproc, if it needed bleeding then you'd probably have the opposite problem - it would be dragging.
Whipping the slave cylinder off will at least show you whether it's some part of the clutch release mechanism that's holding the clutch off. If it grips after you do this then you know you've put something together wrong or something's gone out of adjustment.
In my experience, clutch slip due to knackered plates is something that comes on gradually and gets worse and worse - e.g., it will be start slipping under max power/torque and then happen under less and less throttle.
Forget what it does on the stand, that's just a red herring, you've got no drive at all. SO, either your plates are knackered (and I suppose if you took an angle grinder to them ...) OR, the plates are not being clamped together by the springs properly, which can only be something in the clutch mechanism not allowing them to engage fully, or possibly they been put back together wrong, or a spacer/washer's been left out, etc.
I may be totally wrong about this but I'd just hate to see you buy a set of clutch plates, fit them and then find you've still got the same problem.

A303 said:

Super, you're a nutter mate:thumbup
Sproc, if it needed bleeding then you'd probably have the opposite problem - it would be dragging.
Whipping the slave cylinder off will at least show you whether it's some part of the clutch release mechanism that's holding the clutch off. If it grips after you do this then you know you've put something together wrong or something's gone out of adjustment.
In my experience, clutch slip due to knackered plates is something that comes on gradually and gets worse and worse - e.g., it will be start slipping under max power/torque and then happen under less and less throttle.
Forget what it does on the stand, that's just a red herring, you've got no drive at all. SO, either your plates are knackered (and I suppose if you took an angle grinder to them ...) OR, the plates are not being clamped together by the springs properly, which can only be something in the clutch mechanism not allowing them to engage fully, or possibly they been put back together wrong, or a spacer/washer's been left out, etc.
I may be totally wrong about this but I'd just hate to see you buy a set of clutch plates, fit them and then find you've still got the same problem.

Click to expand...

Cheers mate i'll try the slave off first then strip clutch down after that if it doesn't work, your explanation makes more sense to me now :thumbup

had a problem much the same when i took mine out to rough them up, my problem was human error! if i remember rightly i hadnt put the last metal quarter of a turn round in the grooves as thats the only one thats different to the rest, i had no drive, felt like the clutch was in. took it all out again, had a ***, put it back togther and good as new hope this helps

A303 said:

the plates are not being clamped together by the springs properly, which can only be something in the clutch mechanism not allowing them to engage fully, or possibly they been put back together wrong, or a spacer/washer's been left out, etc.
I may be totally wrong about this but I'd just hate to see you buy a set of clutch plates, fit them and then find you've still got the same problem.

Click to expand...

Sorted :doug Taking the slave off made no difference, so i removed the clutch cover to take the plates out. While undoing the nut holding the diaphram i noticed that the plates were also spinning and that the last plate had slipped out of position when I last had it apart and the pressure plate had clamped it against the basket :jack bit of an own goal on my part :roll and i stripped the plates out anyway just to double check they were all in the correct order.

rebuilt it all and tried it out on the drive and it works yeehawww :doug

Thanks for all who posted there thoughts, much appreciated guys and saved me wasting £80 for new plates :thumbup