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Author Topic: 1973 Z1  (Read 3676 times)

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Offline MauiK3

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1973 Z1
« on: October 17, 2019, 03:21:52 PM »
A neighbor of mine here on Maui has a brother here with what looks like a 1973 Z1 (root beer color) sitting, ignored, because he bought two Harleys. The story is it’s been in their family since about 1975 or so. I’m going to look it over, I’ve seen it run so it’s not too bad. It has stock exhaust!  I think they may want to see it go to a good home.
Hmmmmmm. I need this like a need another new heart valve.
We’ll see what happens, I’ll post photos if it gets serious.
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1973 CB 750 K3
10/72 build Z1 Kawasaki

Online Don R

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Re: 1973 Z1
« Reply #1 on: October 17, 2019, 03:23:03 PM »
Oooh, looking forward to the report.
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Offline Tews19

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Re: 1973 Z1
« Reply #2 on: October 17, 2019, 03:23:30 PM »
I picked up my first Z1 2 months ago. Love it. Does everything a 750 can but with more power! What's he asking if you don't mind?

Sent from my SM-G955U using Tapatalk

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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline Stev-o

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Re: 1973 Z1
« Reply #3 on: October 17, 2019, 04:17:17 PM »
Two words...GET IT!

FYI - they only made approx 82,000 of that model over three model years ['73-75] they are highly sought after and very collectible.

They were King of the road when they came out in '72.

I love my Hondas but I REALLY love my '75 Z1...






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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline ekpent

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Re: 1973 Z1
« Reply #4 on: October 17, 2019, 04:38:18 PM »
It should have a black engine for that year. As Steve said don't fool around and try to nail it down. 73's go for the biggest money and once you ride it you will fall in love all over again  ;) I know of a guy who is buying as many of the 73-75 Z's as he can get and they are all going to Japan. Lots of machines disappearing.
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ken65

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Re: 1973 Z1
« Reply #5 on: October 17, 2019, 06:24:30 PM »
Quote from: Stev-o on October 17, 2019, 04:17:17 PM
Two words...GET IT!

FYI - they only made approx 82,000 of that model over three model years ['73-75] they are highly sought after and very collectible.

They were King of the road when they came out in '72.

I love my Hondas but I REALLY love my '75 Z1...




heres the maroon version of Steves.


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Offline Tews19

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Re: 1973 Z1
« Reply #6 on: October 18, 2019, 11:46:11 AM »
Quote from: ekpent on October 17, 2019, 04:38:18 PM
It should have a black engine for that year. As Steve said don't fool around and try to nail it down. 73's go for the biggest money and once you ride it you will fall in love all over again  ;) I know of a guy who is buying as many of the 73-75 Z's as he can get and they are all going to Japan. Lots of machines disappearing.

Eric, the person you mention, does he live in MI?

Also, Eric, you have a few Z1s right? Mind sharing a few pics??? :)
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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline ekpent

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Re: 1973 Z1
« Reply #7 on: October 18, 2019, 02:02:02 PM »
He lives in California and will pay pretty good money. I have just one and its a rider,not restored. My friend has one he stores in my shop also and it has a big bore kit and some other goodies.
  Here is another very hot Kaw model if you see one around.Getting good money for the coffin tank z1000 z1-R  https://www.motorcyclespecs.co.za/model/kawasaki/kawasaki_Z1R.htm
« Last Edit: October 18, 2019, 02:10:40 PM by ekpent »
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Offline PeWe

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Re: 1973 Z1
« Reply #8 on: October 18, 2019, 09:06:26 PM »
Good power from the Z1-900 with pistons and cams.
I had a biker friend with a 1000  -77 equipped with RC pistons and RC cams. Not very high lifting cams in need of improved shim holders, stock sleeves bored too. Dellorto pumper carbs with transparant bowls.

Really good power from low all the way to the point he did not dare to twist the throttle further.
230 kmh on that bike was not that stable. I sat behind once and felt the power up to 210...
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline MauiK3

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Re: 1973 Z1
« Reply #9 on: October 20, 2019, 10:19:49 AM »
Just to get it right, the 73 is supposed to have a black engine with the edges of the fins exposed, does that sound right? All the pictures I have found seem to support that.
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1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline 754

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Re: 1973 Z1
« Reply #10 on: October 20, 2019, 10:37:17 AM »
 Check serial number , I had a 24xxx lower end and it was a 74 model, and not black.
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73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline jaytee-nz

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Re: 1973 Z1
« Reply #11 on: October 20, 2019, 01:36:38 PM »
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Offline MauiK3

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Re: 1973 Z1
« Reply #12 on: October 20, 2019, 03:23:01 PM »
When I go to look at it I’ll be sure to get the numbers and compare them.
Thank you
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1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline Tews19

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Re: 1973 Z1
« Reply #13 on: October 20, 2019, 03:32:46 PM »
Quote from: 754 on October 20, 2019, 10:37:17 AM
Check serial number , I had a 24xxx lower end and it was a 74 model, and not black.

Frank, did you like the Z1 more or are they comparable,  the 750 and Z1?
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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline 754

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Re: 1973 Z1
« Reply #14 on: October 20, 2019, 04:04:54 PM »
It was a parts bottom end. I had a 75 900 chopper back around 1981, it was pretty quick. . A bit like an 836.
 I like the stock rear fender, more than what Honda had back then.
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline ekpent

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Re: 1973 Z1
« Reply #15 on: October 20, 2019, 04:08:34 PM »
 One weak spot of the Kaw 900's was the frame as some are/were prone to crack. Wheelies can be a bad thing sometimes. Check it over carefully especially up towards the steering neck area. Probably some talk about that issue on the internet.
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Offline Tews19

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Re: 1973 Z1
« Reply #16 on: October 20, 2019, 04:15:43 PM »
We need pics of this Z1... For the meantime, here is the one I have.

Sent from my SM-G955U using Tapatalk

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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline MauiK3

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Re: 1973 Z1
« Reply #17 on: October 21, 2019, 09:17:53 AM »
Tews
What year is that one? Silver engine
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1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline Tews19

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Re: 1973 Z1
« Reply #18 on: October 21, 2019, 09:18:57 AM »
Quote from: MauiK3 on October 21, 2019, 09:17:53 AM
Tews
What year is that one? Silver engine

75, 63xxx vin. All original minus rear shocks and seat
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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline 754

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Re: 1973 Z1
« Reply #19 on: October 23, 2019, 10:14:01 AM »
 Z1 B, I think.... ..that is what we call the 75 and 76..
« Last Edit: October 24, 2019, 08:38:59 AM by 754 »
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline MauiK3

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Re: 1973 Z1
« Reply #20 on: October 23, 2019, 03:30:23 PM »
I’m still trying to get the visit to look set up. Things move slowly here in paradise🤙🏻
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1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline Tews19

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Re: 1973 Z1
« Reply #21 on: October 23, 2019, 08:17:44 PM »
Quote from: 754 on October 23, 2019, 10:14:01 AM
Z1 B, I think..

Frank is correct.
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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline hawaiikid

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Re: 1973 Z1
« Reply #22 on: October 24, 2019, 12:30:19 AM »
whats up Maui? any cb400 parts on your island?
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Offline MauiK3

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Re: 1973 Z1
« Reply #23 on: October 24, 2019, 09:27:34 AM »
I have only seen a few here, there is a fellow that may know where some are, I'll check in with him.
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1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline hawaiikid

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Re: 1973 Z1
« Reply #24 on: October 24, 2019, 10:05:21 AM »
awesome, only one running that i have seen on Oahu. TLC motorcycle salvage closed after Randy Wong passed away, so spare parts are scarce. I have slowly been stashing parts as i can find them but as of late things have dried up. Let me know what you find out, havent been to Maui in years.
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