early KZ cam cover on MKII head??

zed1015 wrote:

BlackZ1R wrote:

Jeff.Saunders wrote: The top idler assembly on the Mk II is constructed differently than the earlier version. The later valve covers have a bulge around the center section of the cover to accomodate. You cannot use a Z1 cover with that style of top idler assembly.

I spent far too much time bead blasting a cover from my turbo bike only to find the issue first hand...

Ahhhhh, D'oh!!! That sucks.
I reckon I can grab a new top idler if I decide to do this.
I've got an '80 LTD that I would like to clone into a '76 for some reason. :silly:
I really just like the looks of the early cam covers.

Why not use a 1000a cover ?
They have the round styling and take the later idler.
You can always polish out the half moon casting on the end to mimic the the very early cover.

I just went and looked at my cover. It appears to be a 1000a cover with the raised section in the center, so I can use my late model(1980) idler, correct?

Black Z1R
If concerned with clearance Mock it up with clay on top of idler to check it.

Patton wrote:

BlackZ1R wrote:

Patton wrote:

Good Fortune!

Looks good Patton. Care to expound on that photographic presentation? :whistle:

Have so far been unsuccessful in locating the KZr forum thread where that pic was posted as an example of tapping the clean air ports in the head and inserting a screw to serve as a plug.

Here's another thread dealing with the subject of plugging the ports in the head.
www.kzrider.com/forum/2-engine/78496-smo...d-exhaust-port#78496

Good Fortune!

Found the link, and more:

www.kzrider.com/forum/11-projects/502232...e-off-project#502232

www.kzrider.com/forum/2-engine/500625-re...from-their-kz#500625

www.kzrider.com/forum/2-engine/233524-re...head-question#233524

www.kzrider.com/forum/2-engine/221581-re...4-z1-900-head#221581

www.kzrider.com/forum/2-engine/56489-rel...g-head-on-a-77#56489

www.kzrider.com/forum/2-engine/78496-smo...d-exhaust-port#78496

Good Fortune!

BlackZ1R wrote:

zed1015 wrote:

BlackZ1R wrote:

Jeff.Saunders wrote: The top idler assembly on the Mk II is constructed differently than the earlier version. The later valve covers have a bulge around the center section of the cover to accomodate. You cannot use a Z1 cover with that style of top idler assembly.

I spent far too much time bead blasting a cover from my turbo bike only to find the issue first hand...

Ahhhhh, D'oh!!! That sucks.
I reckon I can grab a new top idler if I decide to do this.
I've got an '80 LTD that I would like to clone into a '76 for some reason. :silly:
I really just like the looks of the early cam covers.

Why not use a 1000a cover ?
They have the round styling and take the later idler.
You can always polish out the half moon casting on the end to mimic the the very early cover.

I just went and looked at my cover. It appears to be a 1000a cover with the raised section in the center, so I can use my late model(1980) idler, correct?

Yes

It's only the very early z1 Covers that need the early idlers.
The early covers have a more flat sided raised section with no added 'bump' either side.
The later 900 and 1000 covers have those added 'bumps' and even though there are a few different design idlers, They will all fit with the later cover.

Street Fighter LTD wrote: Black Z1R
If concerned with clearance Mock it up with clay on top of idler to check it.

Ahh, no clay needed. Looks like I have the right cover for what I'm doing.

Thanks for all the replies guys.

I used the z1 early cover but had to grind alot and use 2 gaskets,bummer.