Tightening the clutch nut binds the clutch shaft

[maverickbluer1]

I think that star shape is just the outline of the steel splined insert that's fitted into the aluminum hub. Did you confirm washer thicknesses? The two large 2mm thick washers are the same and could be swapped (2nd and last washers in your pic). Maybe things would fit better that way.

Okay, thanks for that. I did swap out the 2mm washers, but it didn't seem to help. I'm wondering if this clutch boss could be worn down. I don't know anything about the engine. I bought it for $300 on eBay. It doesn't seem like the last 2mm washer fits flat on the thrust washer. It kind of rocks back and forth when you push on it. I found a NOS one for a reasonable price and thinking of buying it. WDYT?

 

[Jan_P]

Thinking out loud here
I would inspect so not an extra washer sits in the inner clutch main basket
or at the engine side
Assuming the washers now are in the correct sequence check so the main basket seats
Removing the nut and outer basket ..only the inner basket and washers there ..it spins as it should no excessive play
Install the bearing and washer and the outer basket
finger thight ---Everything spins as it should but when you tighten the nut
The whole thing gets stuck nothing rotates not the inner and not the outer hub is this right ?

I would test reverse the order of the washers between the hubs ..carefully trying ( of course double check thickness )
Please report if this right
And the bearing seems to spin ?

 

[maverickbluer1]

Thinking out loud here
I would inspect so not an extra washer sits in the inner clutch main basket
or at the engine side
Assuming the washers now are in the correct sequence check so the main basket seats
Removing the nut and outer basket ..only the inner basket and washers there ..it spins as it should no excessive play
Install the bearing and washer and the outer basket
finger thight ---Everything spins as it should but when you tighten the nut
The whole thing gets stuck nothing rotates not the inner and not the outer hub is this right ?

I would test reverse the order of the washers between the hubs ..carefully trying ( of course double check thickness )
Please report if this right
And the bearing seems to spin ?

Inspection shows no extra washers. Seems like an extra thin washer behind the outer basket would help move the bearing out so the thick washer would sit flatter on the bearing. Now it rocks back and forth a little when you push on it.

Everything spins nicely with the nut finger tight. The bearing seems to spin ok. When tightening at 20 ft lbs the outer basket still spins but not the inner. At 40 ft lbs nothing spins freely. You can rotate with a socket on the main drive nut.

When tight, I was able to run string around the outer basket with no interference like it was touching the cases. Was able to put a string between the outer and inner baskets as well.

 

[Jan_P]

Difficult

on Mr 5T s drawing only one washer a conical spring that needs to be turned the right way
You appears to have 2

Am I Wrong ? and Does it matter ?

Is there any part no s on the Clutch

 

[maverickbluer1]

Difficult

on Mr 5T s drawing only one washer a conical spring that needs to be turned the right way
You appears to have 2

Am I Wrong ? and Does it matter ?

Is there any part no s on the Clutch


View attachment 342703


View attachment 342704

I'm sorry to say I don't understand that drawing. The conical washer is on the outside of the inner basket just in front of the nut, so would that make a difference?

The inner basket (clutch boss) is part no. 341-16371-10-00

 

[Jan_P]

I'm sorry to say I don't understand that drawing. The conical washer is on the outside of the inner basket just in front of the nut, so would that make a difference?

The inner basket (clutch boss) is part no. 341-16371-10-00

Not sure if it makes any difference i don't know the English word
Maybe --plate spring
It is slightly conical and applies force when flattened by the nut If it is there for locking the nut or have other intent I do not know
But it the drawing is correct it seems to be one to many washers on yours
I am out of ideas

The slanted rectangle if it is flipped it wont land as is should

 

[5twins]

It sounds like you have it right. The Belleville (domed) lock washer is the last thing on the shaft, then the nut goes on. Some had just a large, plain split ring lock washer instead. The raised center faces out so the nut will "squash" the washer flat when tightened.

 

[Jan_P]

Perhaps more details
I am in Europe so I don't know the US models

But that part no
341-16371-10-00
Is not listed as fitting an XS 650 1974
It fits later XS 650 as 1975

https://www.cmsnl.com/products/bossclutch_3411637110/

And 1974 TX 650

Mr Skull in Australia can ascertain what model you have via Engine number

 

[maverickbluer1]

Perhaps more details
I am in Europe so I don't know the US models

But that part no
341-16371-10-00
Is not listed as fitting an XS 650 1974
It fits later XS 650 as 1975

https://www.cmsnl.com/products/bossclutch_3411637110/

And 1974 TX 650
View attachment 342717

Mr Skull in Australia can ascertain what model you have via Engine number

It's actually a TX650A

 

[maverickbluer1]

Not sure if it makes any difference i don't know the English word
Maybe --plate spring
It is slightly conical and applies force when flattened by the nut If it is there for locking the nut or have other intent I do not know
But it the drawing is correct it seems to be one to many washers on yours
I am out of ideas

The slanted rectangle if it is flipped it wont land as is should

View attachment 342716

Hoping the problem is my clutch boss is worn on the back side (the star insert seems to be worn down) I have ordered a new clutch boss to see if that will fix the problem I’m having.

 

[maverickbluer1]

Apparently, the worn clutch boss was the problem. Put on a new one and a new bearing and all is good. Thanks to everyone for the help.