Dragging clutch

[K2-K6]

It could be informative if you set the operating mech with it in place,  then remove the cover and clamp a straight edge across the inside face.

Now you can measure the total lift for full pull at the handlebar lever to assess just how much it will complete.

Would need a comparitive reference from someone else to try and at least eliminate this part from enquiries.

[Scottvincent]

Thanks Jedi. I will try this.. I think that the mechanism is working ok but it would be useful to compare the lift with a known working example. I hope that the force will be with me!

[K2-K6]

More thinking out loud than explanation, when the clutch pack is a assembled it will end up with the thrust bearing at an accumulation of the combined thickness of the clutch plates in it's position relative to the outer case.

The adjustment screw then allows you to position the lift mech in relation to that datum (it will vary according to wear etc of those plates) with the designed lift dimension able to enact a linear movement such that each plate is given clearance to stop it gripping.  If the pack had more plates,  or the plates are distorted, then you'd need more lift to give free movement. 

Ordinarily you'd expect one of the three "dimensions " to be away from expected to let the the clutch still drive the output shaft substantially, and make the gears rotate when you are trying to move them. 

Obviously the clutch lift mech is controlling the amount of lift you have,  maybe some pictures of it dismantled will draw comment from other's here if there's anything obviously amiss.

[SteveD CB500K0]

Thanks Jedi.

He’s not a Jedi - he’s a very naughty boy ( sorry - bit of a misquote there )


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[K2-K6]

Thanks Jedi.

He’s not a Jedi - he’s a very naughty boy ( sorry - bit of a misquote there )


Sent from my iPhone using Tapatalk

From one of Mrs K's favourite film scenes 

[Bryanj]

Ohcome on now, taking my name in vain again!!!

[Scottvincent]

What did the Japanese ever do for us?

I have taken a few photographs of the clutch lifting mechanism. Does it look as you would expect, or is it looking worn?

Thank you everyone for your insights.

[Nurse Julie]

All those components look fine to me.
Are the ball bearings moving in the cages smoothly?

[K2-K6]

Flip the main clutch cover for a picture,  particularly the centre of it to see detail there too.

As julie says, looks ok from those bits.

[K2-K6]

I'm looking for one of the pieces in this illustration

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#7 item should be installed in backside of main clutch cover as a track for those tri lift ball bearings.

[Scottvincent]

Reverse view of clutch cover as requested.
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[Bryanj]

Which pieces in the illustration as thee are lots

[K2-K6]

It's number 7 Bryan, may not have displayed as written below my picture.

That's the area Scottvincent, and wonder if Julie may have a comparison picture to look at another example.

[Scottvincent]

A little progress! I soaked the clutch plates in oil for 48 hours, cleaned, adjusted and greased (where appropriate).
The bike will go into gear without a sound and will tick over, in gear, held on the front brake. So, not fixed yet.

I have attached a couple of photographs showing the clutch lift mechanism, clutch lever in and out.

I would appreciate any comment.

Thank you

[philward]

Scott, is that some form of gasket goo ouzing out of the clutch cover? If so, be careful that its not ouzing out the inside - wouldn't want any getting into the oil ways and blocking them up