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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 26 Jul 2009 21:51 #309516

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The stock KZ fork, skinny flexy spongy...all at no extra charge!!

I did not focus well so the pic is not perfect.

Any how 30.5 Inches...Measured I might add with a Scale I purchased in B.C. Canada..Just to make you Candian fellas more comfortable:laugh:
Suzuki GSXR 750 slabside
Ducati S4R
Husqvarna FE 350s
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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 26 Jul 2009 21:56 #309517

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I also took the top plate to the Bridgeport, and relieved the bottom side of in about an eight of an inch, this put the top plate an eight of an inch lower, which allowed me to pull the whole assembly down that 1/8 of an inch.

I cannot remember exactly how much ground clearance I have, I can check that next time I take the bike off the stand if you are curious.
Suzuki GSXR 750 slabside
Ducati S4R
Husqvarna FE 350s

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 26 Jul 2009 22:04 #309522

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Ok so I am

Minus 1 inch (1 1/8 as meaured here, but I think it is loaded at least an 1/8 due to weight) with the new forks.

The top plate was releived 1/8 around the stem bolt face:

Gained an 1/8 there.

Overall the front end is approximately 7/8 " shorter than the stock set up. The stiffer spring rate of the 89 GSXR 1100 forks should take care of that.

Almost a perfect match. Lots and lots of thought went into this, I hope it helps any one thinking about doing the same thing. Upside down forks look trick, but they are typically a couple inches shorter.

I must have measured 10 sets of forks, all up side down they were all short. Troy is a GSXR NUT!! he helped me a great deal by loaning me all kinds of forks til we found what we were looking for.
Suzuki GSXR 750 slabside
Ducati S4R
Husqvarna FE 350s

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 27 Jul 2009 05:26 #309545

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my zx9 forks are 28 3/4" long.
the rear shocks perform over bumps better in the proper upright position, due to having a better sag setting and this position, seems to return the proper spring weight and leverage that the shocks were designed for.
I think i will investigate raising the front. i thought i could have a sleeve made up, to put over the top of each fork, and into the top tree. this would allow the fork to slide up and down in the sleeve,(never reaching the top tree) then be clamped in at the right height(the sleeve would have a slit and a clamp like the tree does). does that make sense? raising the front would also add more weight to the rear to regain the proper rear spring weight.
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 27 Jul 2009 07:39 #309559

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I don't think the sleeve would be strong enough to hold the forks. You could try to make or buy a lower top triple that already has a 7/8" drop from the top nut down to where the fork tubes are clamped. I would avoid a sleeve though if the fork tube doesn't make it into the clamp.
1978 KZ650 D1 ~ Carb jetting: 107.5 & 20 & 4th groove with pods and 4-1 Exhaust

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 27 Jul 2009 16:09 #309698

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Gp Suspension has extenders for the GSX-R forks gpsuspension.com/products/newproducts_detail.php?item=1 . I bet that something like that could me machined if you wanted longer forks. All it takes is money. :laugh: Troy341

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 27 Jul 2009 19:47 #309763

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Thats interesting.B)
Thanks.
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 28 Jul 2009 18:59 #309947

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Mark,

Has roller showed up yet there in Canadaland?

You know I used to vacation in B.C. Always when crossing the border I would ask the border patrol/ mounty dude...

Will you tell my wife and daughter, "that Canada is where men are men, and wemens do what they are told?"



:laugh:
Suzuki GSXR 750 slabside
Ducati S4R
Husqvarna FE 350s

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 28 Jul 2009 19:31 #309955

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:laugh: Send wifey up hear and we'll straighten her out for u. a couple weeks in an igloo will have her begging to go back to her belovid Teddy.
No roller yet.
I was just looking up Works shocks. and got a bit of a shocker. about $1100 for piggy backs. Ouch.
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

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~ (k) / (z)

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 29 Jul 2009 20:12 #310247

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Ahhhh taming the independant woman not so easy...

I purchased a set fo carb rebuild kits, sonic cleaned the carbs, gonna anodize the top covers tomarrow.

Carb rebuild this weekend.

I could not resist this blatant plug for Z1 Enterprises...I have purchased afew things there, the biggest being the brand new Fuel tank, always good stuff, always good service.

Thanks Z1 enterprises!!
Suzuki GSXR 750 slabside
Ducati S4R
Husqvarna FE 350s
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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 30 Jul 2009 20:01 #310473

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Ok this will be easy stuff I have rebuilt all kinds of carburators.....

La al aallllaaaa...yes yes..easy stuff.....B)
Suzuki GSXR 750 slabside
Ducati S4R
Husqvarna FE 350s
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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 30 Jul 2009 20:03 #310474

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FOR HEAVENS SAKE JIM.... I'M a DOCTOR, NOT A BRAIN SURGEON!! THESE VULCAN NERVES ARE ALL OVER THE PLACE!!!
Suzuki GSXR 750 slabside
Ducati S4R
Husqvarna FE 350s
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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 31 Jul 2009 16:42 #310599

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Now you've done it. You are so screwed now. Troy341

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 01 Aug 2009 10:12 #310734

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looks like fun.
The chain roller just arived. It looks great.B)
i'll try to get it installed soon.
Thanks, Mark.
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

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~ (k) / (z)

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 02 Aug 2009 21:16 #310996

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Ahhhh yes thank you KZ riders...

I was perplexed, apparently I have the VM26ss carbs. Hmmm. Some time in late 75 Kawasaki switched to the VM26SS. So some of the parts in my 73-75 rebuild kit did not fit. No worries, there were enough of the importamt parts which crossed over to the VM26ss.

Also, surfed the forum to get an aggregate, jet setting. Very helpful. I am now running 113 mains. and 17.5 pilots on needle setting humber 2 (from the top down). The old jets were 105 mains which seem pretty lean to me. I am at 4500 feet of elevation, we need to run lean, but not that lean.

If you are reading this and thinking "hey that looks easy".......oh boy ...a word of wisdom, take notes sketch out the way it all goes together. It looked easy til i got them all taken apart, lots of littel parts to loose.:huh:

All back together with black anodized tops....
Suzuki GSXR 750 slabside
Ducati S4R
Husqvarna FE 350s
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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 02 Aug 2009 21:19 #310997

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:laugh: Starting to look like a functioning bike again...........:laugh:
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Ducati S4R
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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 06 Aug 2009 21:29 #312135

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Here is a great tip I got from Stoppee, who is rebuilding an old Water buffalo (Suzuli GT 750) in Washington state.

For about 85 bucks including the "media" I bought a Brass tumbler from a sporting goods store. Now I dunno if Canadaland allows such horrid items to be sold, you know it is firearm related, but it works great.

In hindsight i would use a media which is not treated with the red stuff. The red stuff seems to leave a film, which washes off. The natual walnut shell media is what Stoppee uses, it leaves no film.

You just drop the nuts and bolts in all rusty, turn it on, and wait. Eventually everything comes out "shiny" and new looking.B)
Suzuki GSXR 750 slabside
Ducati S4R
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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 07 Aug 2009 19:20 #312307

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great idea.B) dont forget the before and after pics.:lol:
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

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~ (k) / (z)

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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 08 Aug 2009 16:04 #312467

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you asked for a pic of 79mkII's bike awhile back,i think he missed it.hopefully he won't mind me posting this pic of it i got from an old post.

leon holmes
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
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1975 KZ 900 , ZRX Swingarm, 89 GSXR front end 08 Aug 2009 17:38 #312489

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No problem - I must have missed that some how - sorry!

I've thought about one of those tumblers too - how does it work on polishing aluminum? Might need finer media? We installed a pretty large one where I used to work right before I left that job. Never really got to see how well it worked. It was to be used for burr removal on shafts for aerospace.
The Kaw List:
Current: 79 KZ1000 A3 MKII, 78 KZ1000 A2, 78 KZ1000 Z1-R, 78 KZ650 SR, 80 KE175
Former: 03 KLX400SR, 99 ZRX1000, 82 KZ750 LTD, 80 KZ1000 A4 MKII, 80 KZ1000 LTD, 78 KZ1000 A2, 74 H-2 750 Triple, 78 KL250

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