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Author Topic: saving a 1980 KZ750 twin  (Read 67703 times)

Offline doc_rot

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Re: saving a 1980 KZ750 twin
« Reply #450 on: Jul 20, 2018, 14:31:06 »
that's an old painting of mine, as you can see its being absorbed into the scrap wood pile.

Offline beachcomber

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Re: saving a 1980 KZ750 twin
« Reply #451 on: Jul 31, 2018, 08:35:55 »
Help please. I need to know the outside diameter of the front wheel axle sleeve nut.

The guy modifying my Grimeca spindle needs the  measurement. As you know the fork caps have a gap one side when torqued up and I've been given different diameters so far ! ::)

My thoughts are if he makes the sleeve spacer the same diameter as the original sleeve nut - it HAS to be correct !  ;)
"if at first you don't succeed, you've already been a failure once"

" we're not going back to the sixties - we never left "

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Offline doc_rot

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Re: saving a 1980 KZ750 twin
« Reply #452 on: Aug 01, 2018, 04:50:54 »
Im out of town for a couple weeks, let me get back to you when i get home.

Offline beachcomber

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Re: saving a 1980 KZ750 twin
« Reply #453 on: Aug 01, 2018, 05:11:49 »
Im out of town for a couple weeks, let me get back to you when i get home.

You're a star

Cheers

TJ
"if at first you don't succeed, you've already been a failure once"

" we're not going back to the sixties - we never left "

"yep, nostalgia ain't what it used to be"

"I used to be indecisive - now I'm not so sure"

Offline der_nanno

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Re: saving a 1980 KZ750 twin
« Reply #454 on: Aug 01, 2018, 11:24:54 »
Think I'm going to need some of those for the blown motor !!

Also make sure you have a copper headgasket made or at least have the cylinder piano-wired.

A Z750 Twin is one of those bikes that have been on my list for a while...
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Offline beachcomber

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Re: saving a 1980 KZ750 twin
« Reply #455 on: Aug 01, 2018, 12:29:54 »
Also make sure you have a copper headgasket made or at least have the cylinder piano-wired.

A Z750 Twin is one of those bikes that have been on my list for a while...

The plan  was for wire ... copper head gaskets are astronomical to have made ! The bottom end looks pretty bulletproof - with some decent rods and pistons ... half way there ! I've secured 3 heads now - so I'm looking at getting a jig set up for twin plug conversions. Not a huge market, but they ARE starting to get popular now. What's donor prices like over there ?
 
"if at first you don't succeed, you've already been a failure once"

" we're not going back to the sixties - we never left "

"yep, nostalgia ain't what it used to be"

"I used to be indecisive - now I'm not so sure"

Offline der_nanno

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Re: saving a 1980 KZ750 twin
« Reply #456 on: Aug 02, 2018, 02:16:38 »
Well if you have a CAD-drawing, a copper head-gasket should be within 20 to 30 Euros at my waterjet cutting place. I agree that cometic charge rather handsomely for proper headgaskets though.

Donor prices? Well you wouldn't want to know. 1500 to 2000 Euros, I'd say. It would be cheaper to import them from Germany and go through the legal process. I could probably get one for approx. half the price (and that's including about 200-300 Euros of taxes and fees...)
Real freedom starts with the freedom of thought.

My Blog:
http://greasygreg.blogspot.co.at

My Mule TR1.1 build here on DTT:
http://www.dotheton.com/forum/index.php?topic=75458.0

My Turbo TR1.1 (XV1000) build here on DTT:
http://www.dotheton.com/forum/index.php?topic=72571

My XS Triple Sidecar build here on DTT:
http://www.dotheton.com/forum/index.php?topic=74211

Offline beachcomber

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Re: saving a 1980 KZ750 twin
« Reply #457 on: Aug 02, 2018, 08:07:18 »
Well if you have a CAD-drawing, a copper head-gasket should be within 20 to 30 Euros at my waterjet cutting place. I agree that cometic charge rather handsomely for proper headgaskets though.

Donor prices? Well you wouldn't want to know. 1500 to 2000 Euros, I'd say. It would be cheaper to import them from Germany and go through the legal process. I could probably get one for approx. half the price (and that's including about 200-300 Euros of taxes and fees...)

Thanx for the headsup Greg. I could spend months here in the UK just trying to find someone to do the job! I'll contact you nearer the time. Thanx
"if at first you don't succeed, you've already been a failure once"

" we're not going back to the sixties - we never left "

"yep, nostalgia ain't what it used to be"

"I used to be indecisive - now I'm not so sure"

Online irk miller

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Re: saving a 1980 KZ750 twin
« Reply #458 on: Aug 02, 2018, 08:24:35 »
The plan  was for wire ... copper head gaskets are astronomical to have made !

Have you contacted Lani at Coppergaskets.us?  I've never felt his prices were bad.  Should be in the range of $40 - $50.

https://coppergaskets.us/

Offline beachcomber

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Re: saving a 1980 KZ750 twin
« Reply #459 on: Aug 03, 2018, 18:42:31 »
Have you contacted Lani at Coppergaskets.us?  I've never felt his prices were bad.  Should be in the range of $40 - $50.

https://coppergaskets.us/

Thanx Irk - but carriage from the US is a killer !!! It's approximately TWICE the cost of sending stuff from UK to US. There's loads of bits I want - cheap enough .... until you add in the post.
"if at first you don't succeed, you've already been a failure once"

" we're not going back to the sixties - we never left "

"yep, nostalgia ain't what it used to be"

"I used to be indecisive - now I'm not so sure"