Picked up a salvage ninja with front end damage. Got some cheap busa forks.

http://i20.photobucket.com/albums/b249/blonger/IMG_3954.jpg

Tire hits the fairing and handlebars hit. I could get riser bars and hack the lower part of the fairing off, but I think I'll just go naked.

Looks like a fun project. be sure to post pics when you are all done.

I have alwyas liked the color of the busa forks.

welcome to the forum Brian! Interesting fix you have there :)

needs more pics

Wait. Are the front and rear tires the same size then?

Thats allot of front end for a 250 to push :D

Good thing you got the light weight calipers!

Wait. Are the front and rear tires the same size then?

word

3.5 rims f&r

gunna try and get it pinned up for the go kart track this weekend

talk about a front end upgrade! not too shabby Brian, I would really like to see the end product, it looks sick. Quick question, is the busa front tire wider than the stock 250 rear tire?

pretty much all sportbikes (like busa) have 3.5" wide front wheels. tires size is 120.

i can't imagine that having a positive affect on handling, but a cool project anyways.

gotta get rid of the horrid fender though. the busa has to be one of the ugliest bikes out.

I agree, I think the busa's biggest quality is the sheer absurdity of that much power.

Dig the ninja! Forks don't suck.

http://i20.photobucket.com/albums/b249/blonger/ninja1.jpg http://i20.photobucket.com/albums/b249/blonger/ninja2.jpg http://i20.photobucket.com/albums/b249/blonger/ninja3.jpg

:kewlpics:

:whathesaid:

looks awfully hot out there tho.. is the not scorching :devil: riding track in the desert?

bobbed the tail...

http://photos-f.ak.fbcdn.net/hphotos-ak-snc3/hs160.snc3/18739_827780274564_3303308_47025248_2924698_n.jpg

YER CRAZY - thats sick man! love how you rigged the tail ...

can you run a 110 and a 170 ( would a rear fit the ninja gears ect)? if so what are those rims i need em =)

Yikes !

i'm running 120s front and rear (3.5" rims f&r)

f&r is the the brand then ahhh! thought you meant front & rear for abrv-

doh! thanks-

i'm running 120s front and rear (3.5" rims f&r)

which 120 tire are you using for the rear?

hey what im saying is the 3 spoked rim (front) can you get a 3 spoked rim (rear) and put it on the back using the rear stock 250 guts-

i'm running 120/70 pilot power 2ct's front and rear 31psi front, 22psi rear.

felt great at streets of willow this weekend:
http://caliphotography.exposuremanager.com/scripts/expman.pl?rm=view_photo&photo_id=cp2_3480_21_209_2_3&file=cp2_3480_medium.jpg&dir=galleries/21/209/2/3&touched=1263186704



doubt that changing the rear wheel would be simple

That is one beautiful machine. What are you planning on doing next to the bike?

That is one beautiful machine. What are you planning on doing next to the bike?

I woulda picked a different adjective, but thanx, man. Plan is to ride the piss out of it.

what does it weigh in that configuration?

I woulda picked a different adjective, but thanx, man. Plan is to ride the piss out of it.

Vicious?:thumbup:

what does it weigh in that configuration?

my bathroom scale says 340# with a full tank of gas

man i love it looks Sick:D:thumbup:

Bought an 06/07 gsxr 600 rear shock. According to internet,
The 07 gsxr 600 shock is 317mm with a spring rate of 9.4kg/mm = 525#/in
Anybody know what the stock ninja spring rate is?
I measure:
stock: 320mm long
gsxr600: 317mm long

Install procedure:
- drill out shock on top and bottom. i used a 15/32" drill
- lower fork on the rear shock is narrower, so:
- make some clearance on lower swing-link thing. i used a harbor-freight milling machine. only need to file down a few mm
- same story on the steel pivot cylinder.
- bolt it up. dogbones hit the shock, so you'll need two longer bolts and a handful of spacers

because the shock is shorter, i'm going to make some shorter dogbones. stock dogbones measure about 165mm.

Bought an 06/07 gsxr 600 rear shock. According to internet,
The 07 gsxr 600 shock is 317mm with a spring rate of 9.4kg/mm = 525#/in
Anybody know what the stock ninja spring rate is?
I measure:
stock: 320mm long
gsxr600: 317mm long

Install procedure:
- drill out shock on top and bottom. i used a 15/32" drill
- make some clearance on lower swing-link thing. i used a harbor-freight milling machine. only need to file down a few mm
- same story on the steel pivot cylinder.
- bolt it up. dogbones hit the shock, so you'll need two longer bolts and a handful of spacers

because the shock is shorter, i'm going to make some shorter dogbones. stock dogbones measure about 165mm.

jumped up and down on it...spring rate feels about the same, but having some compression damping sure does feel nice...

So are you just setting this up for racing or are you going to get it streetlegal?

Bob

So are you just setting this up for racing or are you going to get it streetlegal?

Bob

somewhere in between the two...

You thinking rear end swap too? Swingarm and wheel?

Curious about doing that myself but would prefer to go the easiest, cheapest route.

Thanks
bob

You thinking rear end swap too? Swingarm and wheel?

Curious about doing that myself but would prefer to go the easiest, cheapest route.

Thanks
bob

you first

you first

Heh, well for the cheap and easy way need lots of measurements. Anyone know the width of:

The pivot point of the swing arm?
The OD of the pivot bolt?
The OD of the pivot sleeve?

I know the rear axle is 17mm , unfortunately only the bandit400 is 17mm rear axle and 17" rim. The FZR is 18" x 4" so it's a good candidate though I'd prefer to keep it 17" front and back. Basically it looks like a full swingarm swap would be the easiest/cheapest solution. Though it will take lots of research to find the optimum swingarm to swap on.

Bob

Thx

Actually it looks like the Katana 750, 1st gen, came stock with a 150 tire on a 17" rim. And it looks like it had a 17mm rear axle. So that is probably the most promising. Now if I can find a good deal on one on ebay with all the fixings. So I don't get nickel and dimed to death for all the odds and ends.

Bob

Brilliant! Did you do anything to the spring rates on the busa forks?

Actually it looks like the Katana 750, 1st gen, came stock with a 150 tire on a 17" rim. And it looks like it had a 17mm rear axle. So that is probably the most promising. Now if I can find a good deal on one on ebay with all the fixings. So I don't get nickel and dimed to death for all the odds and ends.

Bob

Bob: I think this thread may interest you. I have asked Alex to change the title so others will have a better idea of what it is about.

http://www.ninjette.org/forums/showthread.php?p=214323#post214323

Brilliant! Did you do anything to the spring rates on the busa forks?

nope

Bob: I think this thread may interest you. I have asked Alex to change the title so others will have a better idea of what it is about.

http://www.ninjette.org/forums/showthread.php?p=214323#post214323

Cool. Definitely not in my realm of price but good info none the less.

:D

Bob

Cool. Definitely not in my realm of price but good info none the less.

:D

Bob

Actually I'm hoping to complete it for around $500 including the rear tire. I got some great deals on ebay on the 650R parts.

Actually I'm hoping to complete it for around $500 including the rear tire. I got some great deals on ebay on the 650R parts.

Heh, apparently I didn't properly convey how cheap I am. I paid $400 for my last bike (91 ex500) and $2k for my 09 250r with crash damage. So i'd prefer to stay under $200 for a rear swap including the tire :D

I'd probably be doing the work over the winter so I have time to be patient and wait for the right deal, or just use the FZR600 suspension I have in the basement.

Thanks though.

Bob

Bought an 06/07 gsxr 600 rear shock. According to internet,
The 07 gsxr 600 shock is 317mm with a spring rate of 9.4kg/mm = 525#/in
Anybody know what the stock ninja spring rate is?

Stock ninja spring rate is 9.3 kg/mm according to racetech. They also spec out that the optimal spring rate for a 150 lb rider for racing is 8.4 kg/mm using their calculator thing. Maybe thats spec'd for their special damper valving.

Here are some OEM rear spring rates for reference (taken from racetech):
- 2009-up Ninja EX250: 9.3 kg/mm
- 2003-2004 GSXR 1000: 8.6 kg/mm
- 2005-2006 GSXR 1000: 8.1 kg/mm
- 2001-2003 GSXR 600: 8.0 kg/mm
- 2004-2005 GSXR 600: 7.2 kg/mm
- 2006-2009 GSXR 600: 9.4 kg/mm
- 2006-2007 ZX10R: 8.3 kg/mm
- 2008-2010 ZX10R: 9.1 kg/mm
- 2007-2010 ZX6R: 9.2 kg/mm

I didn't post others, because they were all much stiffer than these ones posted, and wasnt sure how well they would fit, especially with the external reservoir shape of some of them.

Bought an 06/07 gsxr 600 rear shock. According to internet,
The 07 gsxr 600 shock is 317mm with a spring rate of 9.4kg/mm = 525#/in
Anybody know what the stock ninja spring rate is?
I measure:
stock: 320mm long
gsxr600: 317mm long

Install procedure:
- drill out shock on top and bottom. i used a 15/32" drill
- lower fork on the rear shock is narrower, so:
- make some clearance on lower swing-link thing. i used a harbor-freight milling machine. only need to file down a few mm
- same story on the steel pivot cylinder.
- bolt it up. dogbones hit the shock, so you'll need two longer bolts and a handful of spacers

because the shock is shorter, i'm going to make some shorter dogbones. stock dogbones measure about 165mm.

I made some new dogbones...came out to 154mm.

Sold my ninja. Got it back.

Re-did the wiring harness for track-only and put a tail on it...

http://i20.photobucket.com/albums/b249/blonger/ninja0.jpg

http://i20.photobucket.com/albums/b249/blonger/ninja1-1.jpg

This bike is fun!

I like the duck tape wrap hehe. Love the rs125 tail, it's one of the nicest looking tail fairings out there.

Bob

I like the duck tape wrap hehe. Love the rs125 tail, it's one of the nicest looking tail fairings out there.

Bob

Good eye, yup nothing but the best when it comes to making her purty...

Awesooooooome, I love the stance and USD forks, I wish my project had USD forks.

Nice naked Ninja! NNN

bobbed the tail...

http://photos-f.ak.fbcdn.net/hphotos-ak-snc3/hs160.snc3/18739_827780274564_3303308_47025248_2924698_n.jpg

loving the tail!

Why not just run a set of triple trees that pushes the forks out a bit farther forward and keep the bodywork?

bobbed the tail...

http://photos-f.ak.fbcdn.net/hphotos-ak-snc3/hs160.snc3/18739_827780274564_3303308_47025248_2924698_n.jpg

Thats a awesome bike :thumbup:

Why not just run a set of triple trees that pushes the forks out a bit farther forward and keep the bodywork?

That would mess up steering geometry and could quicken the steering ALOT.

My homey passed me a carbon slip-on.
285# wet
not so bad...
what do other ninjas weigh?

Here's it in action:

62NShE7_xD4

(jump to half-way through)

I think the new gen weighs roughly 376 lbs?

does it help you?

for some reason that sweet ninja of yours doesnt look like its lost 100lbs to me. great bike but 100lbs? where did it come from :confused: how did you weigh it?

does it help you?

Yes.

I get mad tail from this bike.

Yes.

I get mad tail from this bike.

rs125 tail all DAY

well it looks really good...MUCH better than those stock blackies

I personally prefer the bobbed tail. Mean machine any way you slice it, though!

I personally prefer the bobbed tail. Mean machine any way you slice it, though!

Tail is still bobbed...just has aerodynamic cover hiding it...

Now for sale:

http://www.ninjette.org/forums/showthread.php?p=445793