Kosman frame bracing kits for the Z1 KZ900 KZ1000

  • SWest
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  • 10 22 2014
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29 Oct 2015 11:29 #696439 by SWest
I live in the desert too. I have a large wash the goes corner to corner on my 5 acres. It can be a torrent in seconds. I'll delete your removed posts.
Steve







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21 Apr 2016 19:09 #722277 by Coast Steve
Replied by Coast Steve on topic Kosman frame bracing kits for the Z1 KZ900 KZ1000
Hey DR Gamma,

Do you still offer this frame stiffening kit?

Thanks,

Steve

1982 Kawasaki Eddie Lawson S1 (1136cc race replica clone.)

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  • Street Fighter LTD
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22 Apr 2016 07:15 #722331 by Street Fighter LTD
Replied by Street Fighter LTD on topic Kosman frame bracing kits for the Z1 KZ900 KZ1000
I may be wrong , but I dont believe he was offering to make kits for sale.
Dave


Original owner 78 1000 LTD
Mr Turbo Race Kit, MTC 1075 Turbo pistons by PitStop Performance , Falicon Ultra Lite Super Crank, APE everything. Les Holt @ PDM's Billet Goodies . Frame by Chuck Kurzawa @ Logghe Chassis . Deep sump 5qt oil pan. RIP Bill Hahn

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22 Apr 2016 07:52 #722344 by Coast Steve
Replied by Coast Steve on topic Kosman frame bracing kits for the Z1 KZ900 KZ1000
Oh thanks Dave,

I guess I just assumed they were for sale since it was in the vendor forum.
Looks like a good idea to stiffen up things though.

Steve

1982 Kawasaki Eddie Lawson S1 (1136cc race replica clone.)

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22 Apr 2016 09:05 #722360 by TexasKZ
Last time i looked, PMC has a bracing kit listed in their catalogue. You could contact Z1E and ask if they can order it.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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22 Apr 2016 09:22 #722363 by Coast Steve
Replied by Coast Steve on topic Kosman frame bracing kits for the Z1 KZ900 KZ1000
My frame is an 81 GPZ1100 though. Not sure if it's in kit form.

I thought it would save on cutting all the pieces if I can find a kit.

Don't see anything on PMC's site though.

1982 Kawasaki Eddie Lawson S1 (1136cc race replica clone.)

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22 Apr 2016 10:06 #722369 by pete greek1
Replied by pete greek1 on topic Kosman frame bracing kits for the Z1 KZ900 KZ1000

Coast Steve wrote: My frame is an 81 GPZ1100 though. Not sure if it's in kit form.

I thought it would save on cutting all the pieces if I can find a kit.

Don't see anything on PMC's site though.

Try giving 531blackbanshee a P.M., he used to make them
Pete

1980 LTD 1000..,1976 LTD 900, have the 1000&900 now. the rest are previous= 1978 KZ 650 B.., 1980 Yamaha XT 500..,1978 Yamaha DT 400.., 1977 Yamaha yz 80..,Honda trail ct 70.., Honda QA 50...5-1/2 hp brigs & straton CAT chopper mini bike...3-1/2 hp mini bike (WHEN GAS WAS ABOUT 45 CENTS A GALLON)!!!!

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26 Apr 2016 11:09 #723076 by I_Tig_in_piece
Replied by I_Tig_in_piece on topic Kosman frame bracing kits for the Z1 KZ900 KZ1000
After I get my 440 back together and caught up on shop and house projects, If someone provides the appropriate frame and/or, as well as their knowledge with the Z1, 9 and/or 1k, cause I havent got a clue other than the 900 has a front wheel I want :P Also help from such individual in measuring, marking, cutting and fitting, I wouldn't mind opening the shop doors on a weekend to bang some bars out for the community B) I'm no motorcycle expert by any means, but Ive been told that my mutant power is the ability to easily spot problems and fabricating problem solving?
Also, I'm not in any way trying to step on anyone's toes or gain customers, he'll chances are it may not even happen? (that is unless you wanted to turbocharge your car :P ) sooo yeah,

Cheap labor isn't skilled, skilled labor isn't cheap.
1980 KZ440a. I went green.
If you yourself are building an older bike and can see it through till you're riding it, that's proof you have patience.

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26 Apr 2016 12:36 #723093 by Dr. Gamma
The '81/'82 KZ1000J, and the '81/'82 GPz1100 frames were designed after what Kawasaki learned in the '80 Superbike program. They are a real good frame in their standard form. Even the KZ1000S1 Superbike road racer that Kawasaki sold back in 1982 used the KZ1000J frame with just ONE extra frame brace!!!!! It was that good of a frame design even for their Superbike racer. !!!! There was even a couple of AMA Superbike racers that stuck the early model motor into a stock framed KZ1000J Superbike back in 1981, and they said it was better than their early model modified framed bikes. I got a couple of pictures of one of those bikes at Daytona somewhere!!!

I owned and raced a KZ1000Si back then, and it handled almost as good as the Superbike that I built back then. Now my Kz1000 that I built started with a Rob North/ Pierre DesRoche modified frame. Why don't you just get a nice swing arm, and a pair of Ohlins piggyback shocks with your GPz frame, and I think you will be impressed!!!!

1972 H2 750 Cafe Racer built in 1974.
1976 KH400 Production Road Racer.
1979 Kz1000 MK. II Old AMA/WERA Superbike.
1986 RG500G 2 stroke terror.
1986 GSXR750RG The one with the clutch that rattles!

Up in the hills near Prescott, Az.

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26 Apr 2016 14:40 - 27 Apr 2016 06:42 #723117 by Coast Steve
Replied by Coast Steve on topic Kosman frame bracing kits for the Z1 KZ900 KZ1000
Well maybe it all stops right here then. (and thanks you guys for the tips).
So you recommend I don't need to modify it then.
Already have the swing arm DR G,

My goal is more power though cams or head work but on a decent handling frame.

This bike is still in transit to me so I don't know how it will handle and feel.

I did read lots about rubbery frames on the web though.
But that might just be with with sticky slicks and on the track.

I also really miss those 3 rd gear roll on powerlifts my old superbike did.
Hoping for that feeling again with this.
I also remember switching to roller bearings in the head tube on another bike and wow what a difference.
Not sure if mine has those or not.

I just want the bike to be as good as it can be....within reason. I know it's only steel tubing.
Would love to see your pics DR Gamma

1982 Kawasaki Eddie Lawson S1 (1136cc race replica clone.)
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Last edit: 27 Apr 2016 06:42 by Coast Steve.

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02 May 2016 11:45 #724129 by Dr. Gamma

Coast Steve wrote: Well maybe it all stops right here then. (and thanks you guys for the tips).
So you recommend I don't need to modify it then.
Already have the swing arm DR G,

My goal is more power though cams or head work but on a decent handling frame.

This bike is still in transit to me so I don't know how it will handle and feel.

I did read lots about rubbery frames on the web though.
But that might just be with with sticky slicks and on the track.

I also really miss those 3 rd gear roll on powerlifts my old superbike did.
Hoping for that feeling again with this.
I also remember switching to roller bearings in the head tube on another bike and wow what a difference.
Not sure if mine has those or not.

I just want the bike to be as good as it can be....within reason. I know it's only steel tubing.
Would love to see your pics DR Gamma


I LIKE!!!!
Your bike looks real nice in my book!!! What kind of throttle is that?? Looks like the old Yoshimura 1/4 turn I found for my old Superbike.

A few other things I also did to my S1 was replace those rubber mount pieces with the solid aluminum mounts that Sid Pogue made back in the early 80's. And I made up an oversize swing arm bolt. I could not believe the amount of clearance between the frame boss, and the stock swing arm bolt!!!! It had to be at least .030 between both. Just imagine what .030's of play there ends up at the rear axle!!!! That's one of the first things I noticed on all of the Muzzy built Kz1000's was a different swing arm bolt. Gee, I wonder why!!!

My machinist made me up a fixture that fit into the frame, and had a adjustable ream on the other end that opened up that side of the frame to the oversized bolt. Then I flipped it around and did the other side of frame. That way both sides of the frame were basically line-bored. Then I just honed the inner swing arm bushings to like a .001~.002" clearance to the oversized swing arm bolt. I have to tap my swing arm bolt into place. A lot of work, but it made a HUGE difference on my home built KZ1000 back then!!!

1972 H2 750 Cafe Racer built in 1974.
1976 KH400 Production Road Racer.
1979 Kz1000 MK. II Old AMA/WERA Superbike.
1986 RG500G 2 stroke terror.
1986 GSXR750RG The one with the clutch that rattles!

Up in the hills near Prescott, Az.

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02 May 2016 16:55 #724164 by Coast Steve
Replied by Coast Steve on topic Kosman frame bracing kits for the Z1 KZ900 KZ1000
I don't know about that throttle since I didn't build the bike. So can't answer that one sorry.

Hey, where's MY personal machinist? :)

1982 Kawasaki Eddie Lawson S1 (1136cc race replica clone.)

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