750 Big Bore Cam Chain Adjuster??

[halfmile]

Which cam chain adjuster is used with the large fin BB kit that we all bought?

 

[Jim]

@GLJ ?

 

[Jim]

@SomervilleXS650 ?

 

[GLJ]

@GLJ ?

I pretty sure the slipper guide and adjuster was from a 75 XS650.
It seems to be working ok.

 

[GLJ]

I will warn you if you have more than 1 XS650 you may have a problem. After you get the 750 kit in and running right if you take one of your other 650s for a ride you will think there is something wrong with it.
A 750 kit makes a huge difference in how it runs.

 

[gggGary]

pretty sure ANY adjuster can be used. Prolly best to stick with type C and up.
The type E is preferred for ease of locking the setting. No matter which you decide on, the rubber sandwich (doughty type) washer as used on the E type is likely to keep things quieter.

Photo courtesy @5twins

 

[GLJ]

pretty sure ANY adjuster can be used. Prolly best to stick with type C and up.
The type E is preferred for ease of locking the setting. No matter which you decide on, the rubber sandwich (doughty type) washer as used on the E type is likely to keep things quieter.
View attachment 216929

Photo courtesy @5twins

I think it needs to be a Type D or E. You need the cap to seal it. There is nothing for the older style cap to thread to.

 

[5twins]

I don't recommend getting the D type other than for a source of parts for making up an E type.

 

[WideAWAKE]

I used the one off my 81 special 2 - I believe it’s a type E -

Seems to work just fine.

And I will second the notion that your stock xs will now feel “off” haha.

 

[SomervilleXS650]

Yeah, Gary hit the nail on the head....it needs to be a D or E, because while the threaded tensioner from earlier ones (at least my original "C" type) can indeed thread in, I believe it's too long to use with the newer-type acorn nut. I had a pic somewhere of this but can't seem to find the post. Even with the locknut and acorn cap like with the Type E, I believe there's a small gap between the lock nut and the body of the BBK to actually be able to lock it down.

 

[SomervilleXS650]

Actually, found 'em. Few pics of Type C measurements I took here

https://www.xs650.com/threads/1974-tx650a-restoration-project.57476/post-685855