The Hayabusa Fork Setup

[ThAzKat]

Originally Posted by squiggy

What about the stem length of the Hayabuba to the Post Katana?

The stem is longer on the Hayabusa but for good reason. There are 2 adjuster nuts under the handlebar mount, the mount itself and a nut on top of that.

Originally Posted by jetmerritt

I thought it was a how to thread with pics and stuff. Didn't realize it was just a parts list. Still worth keeping my radar on.

I think I have covered that in the katbusa, chrome project threads. Many pics of both setups. I was trying to avoid 20 pages of pictures and get down to the main stuff. If pictures is what you want then I will post that later today.

[airforceranger49]

Originally Posted by ThAzKat

If pictures is what you want then I will post that later today.

PLEASE DO!!! planning this mod soon...need as much info as possible

[ThAzKat]

Originally Posted by airforceranger49

PLEASE DO!!! planning this mod soon...need as much info as possible

I have to head to work right now but I will get those pics up later today. Or I could just get the setup kit together and supply instructions J/K

[airforceranger49]

Originally Posted by ThAzKat

I have to head to work right now but I will get those pics up later today. Or I could just get the setup kit together and supply instructions J/K

how much $, hahaha

[ThAzKat]

Originally Posted by airforceranger49

how much $, hahaha

I have about $400 into mine. Ebay was good to me and many good friends that had spare parts they were willing to part with for less than nothing.


You will also need a speedhealer for the pre to be sure to get the speedo dialed in.

[RebornKat02]

Ohhhhh maaaaannn. My biggest gripe is the spongy suspension on my kat! Dude ur gonna make me spend more money! A$$ H@/3!!! Lol j/k dude that's awesome.

Oh... Btw what about ignition tumbler? Swappable or have to get a new one?

[ThAzKat]

Originally Posted by RebornKat02

Ohhhhh maaaaannn. My biggest gripe is the spongy suspension on my kat! Dude ur gonna make me spend more money! A$$ H@/3!!! Lol j/k dude that's awesome.

Oh... Btw what about ignition tumbler? Swappable or have to get a new one?

I believe on the post ignition, all is good to swap the assembly. On a pre tho there are some modifications that have to be made in hole size.

[squiggy]

Originally Posted by ThAzKat

The stem is longer on the Hayabusa but for good reason. There are 2 adjuster nuts under the handlebar mount, the mount itself and a nut on top of that.

So does the steering stem need to be swap? Press out the Busa stem of the Busa triple tree and then press in the Kat's stem into the Busa triple?

[ThAzKat]

Originally Posted by squiggy

So does the steering stem need to be swap? Press out the Busa stem of the Busa triple tree and then press in the Kat's stem into the Busa triple?

NO

[ThAzKat]

here is the difference between a pre 750 stem and a busa stem. Notice the threads stop at same spot?

This is the stem in a katana neck

I did not have the bearing cover in at that time, this was mockup stage
Another look at the Busa front


This was before doing the gauge change but it gives you a good look at the master cylinder and how the handlebar mount looks

For those with a pre, here is the wiring diag. I made up


The Chrome project post 98 gauge back plate being mocked up to fit the pre


What the gauge cluster looks like completed!

I have to say I really enjoyed this part of the project, seeing it finished and ready to ride!

Now, you asked about spring rates
Hayabusa spring rate is .850 kg/mm (stock)
pre and post 750 is .629 kg/mm (stock)


Let me say at this time that if you don't feel your skill level is where you would like it to be to tackle this mod, just let me know. I will build it, put a kit together with instructions etc.

http://cgi.ebay.com/ebaymotors/GSXR-...item335d8029a8
link will only last for 2 days and this is a good deal! you get everything except the front wheel