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Old November 18th, 2019, 01:32 PM   #1
Zbk
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Lightbulb Ninja 250R for track use only

Hello everybody !
In August I bought a ninja 250 R (2008) in completly stock version & i was preparing it for track using. At first I changed oil with oil filter and replace a air filter. After that I did some needed modifications :
- tyres - dunlop d213
- clip-ons
- laminates
- adtermarket sport footrests (with reverse gears)
- new exhaust (gpr)
- swingarm rollers
- steel brake line (hel)
- brake pads (ebs sinter)

...and this is how it looks, before mods:

..and after mods:


I have to change the crash pads mounting, and I really have to mount the short rollgas (throttle control) because the stock one is really long I don't know yet how to do it, whether to use ready-made solutions (which are quite expensive) or try to do something yourself
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Old November 18th, 2019, 01:49 PM   #2
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Zbk! Glad to have you aboard...
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Old November 18th, 2019, 02:32 PM   #3
BoBO
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Nice! I have the same exact bike year/color. Mine is semi track/fun bike. Nice frame sliders!
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Old November 18th, 2019, 05:12 PM   #4
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Welcome!

Read this for short rollgas
https://www.ninjette.org/forums/showthread.php?t=26270
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Old November 19th, 2019, 12:23 AM   #5
Zbk
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Quote:
Originally Posted by BoBO View Post
Nice! I have the same exact bike year/color. Mine is semi track/fun bike. Nice frame sliders!
Thanks ! i have to do some modifications with this frame sliders. Now they have one mounting point and I think that after the first accident they can bend. I want to add an adapter for two points of mounting.
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Old November 19th, 2019, 12:28 AM   #6
Zbk
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Quote:
Originally Posted by AwDang View Post
Welcome!

Read this for short rollgas
https://www.ninjette.org/forums/showthread.php?t=26270
Hi! Thank you for the tip. I will read carefully after work I have the opportunity to buy a domino set on Black Friday for PLN 500, it's about 129 USD and it is a good price here.

Earlier I used aprilia rs 2t on the track, there the rollgas was much shorter, but it was 2 stroke with a carburetor
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Old November 19th, 2019, 07:23 PM   #7
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Old November 19th, 2019, 08:44 PM   #8
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Old November 19th, 2019, 09:00 PM   #9
BoBO
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Quote:
Originally Posted by Zbk View Post
Thanks ! i have to do some modifications with this frame sliders. Now they have one mounting point and I think that after the first accident they can bend. I want to add an adapter for two points of mounting.
Any plans on a slip-on or full exhaust?
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Old November 20th, 2019, 12:51 AM   #10
Zbk
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Quote:
Originally Posted by BoBO View Post
Any plans on a slip-on or full exhaust?
I installed a new exhaust last weekend, but didn't take the picture. It is slip-on from GPR exhaust system. Unfortunately i can't remove the catalyst because then I will exceed the dB limit.. You can't have more than 96 dB on tracks in Poland
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Old November 23rd, 2019, 06:44 PM   #11
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Cool mods!

BTW, where did you get one-piece tail section? Who makes it? thx

Last futzed with by DannoXYZ; November 24th, 2019 at 11:23 AM.
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Old November 24th, 2019, 10:16 AM   #12
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Laguna Seca has 89db limit. This is how I get around it with full Tyga exhaust and straight-through muffler. Full Tyga is definitely worth it for +20-22% more power. No other bolt-on will give that much power increase.

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Old November 24th, 2019, 10:49 AM   #13
Zbk
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Quote:
Originally Posted by DannoXYZ View Post
Cool mods!

BTW, where did you get one-piece tail section? Who makes it? thx
One guy in Poland makes sport fairings for motorcykles, i bought from him. But in sport laminates , the tail on always one-piece. Unfortunatelly there is no acces to battery because the seat is glued in place of the screws
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Old November 24th, 2019, 11:24 AM   #14
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Quote:
Originally Posted by Zbk View Post
One guy in Poland makes sport fairings for motorcykles, i bought from him. But in sport laminates , the tail on always one-piece. Unfortunatelly there is no acces to battery because the seat is glued in place of the screws
Are you using factory seat or is that foam pad?
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Old November 24th, 2019, 11:27 AM   #15
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Autos also do similar mods to get under Laguna Seca's 89db limit. Noise-monitor is on right side of track between turn 5 and 6. It's an uphill section, so engines tend to be loudest there.





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Old November 24th, 2019, 12:57 PM   #16
Zbk
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Quote:
Originally Posted by DannoXYZ View Post
Are you using factory seat or is that foam pad?
This is the foam pad, with these fairings can not be used the stocking seat.

These solutions in cars look crazy but it's important that they work
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Old November 24th, 2019, 02:01 PM   #17
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Quote:
Originally Posted by Zbk View Post
This is the foam pad, with these fairings can not be used the stocking seat.

These solutions in cars look crazy but it's important that they work
I've been looking for N250 one-piece tail like that for long time, no one in U.S. makes it. I guess shipping tail section from Poland would be expensive?

I may just convert mine by adding carbon-fibre middle section. To access screws I don't glue seat pad in corners above screw-holes. Or cut holes in foam before gluing to access screws later.
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Old November 24th, 2019, 09:52 PM   #18
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Old November 26th, 2019, 12:46 AM   #19
Zbk
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Quote:
Originally Posted by DannoXYZ View Post
I've been looking for N250 one-piece tail like that for long time, no one in U.S. makes it. I guess shipping tail section from Poland would be expensive?

I may just convert mine by adding carbon-fibre middle section. To access screws I don't glue seat pad in corners above screw-holes. Or cut holes in foam before gluing to access screws later.
In dedicated sport fairings, the tail is usually always one-piece, but many manufacturers do not offer a set for ninja 250.. I can send you in a private message the man who makes these fairings i you wont?
Yeah, i must cut holes in foam but unfortunatelly after gluing but I'll wait until I have to change the battery
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Old November 30th, 2019, 06:53 PM   #20
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Old December 1st, 2019, 04:24 PM   #21
BoBO
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Quote:
Originally Posted by Zbk View Post
I installed a new exhaust last weekend, but didn't take the picture. It is slip-on from GPR exhaust system. Unfortunately i can't remove the catalyst because then I will exceed the dB limit.. You can't have more than 96 dB on tracks in Poland
I see just like in Laguna Seca. I have a slip-on with a baffle to make db limit sometimes I even short shift but it works.
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Old December 1st, 2019, 04:28 PM   #22
BoBO
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Quote:
Originally Posted by DannoXYZ View Post
Autos also do similar mods to get under Laguna Seca's 89db limit. Noise-monitor is on right side of track between turn 5 and 6. It's an uphill section, so engines tend to be loudest there.
]
I did the exact same thing on my Boxster. I found a guy with a pre-welded glass pack at the track lol. I gave him two Pilot Sports for his setup.
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Old December 23rd, 2019, 02:18 PM   #23
Zbk
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there is no driving season so it is the garage season





almost ready
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Old December 23rd, 2019, 11:22 PM   #24
liaryilera
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Ninja 250R for track use only

Hi and welcome to the forum
Apart from the aforementioned splines and plug caps I dont believe that there have been any other specific issues - I think that the reg/rec was uprated for the 700?
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Old January 19th, 2020, 09:00 AM   #25
Zbk
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Finaly I decided to use domino solution for short rollgas and the difference is big I can't wait for the first trackday



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Old January 22nd, 2020, 08:53 AM   #26
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That looks sexy as hell! I went with the earlier R6 throttle mod and I loved it. I now have the later R6 throttle 06-09 and it’s even a shorter throw. Had to trim a little bit to make it spin freely. Haven’t tried it on the street yet, still too cold out!
The R6 throttle mod was less than 15 bucks!
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Old January 22nd, 2020, 04:13 PM   #27
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One thing i’d like is variable-radius cam. Start out at stock size and gradually increase radius as it turns.
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Old February 5th, 2020, 01:35 PM   #28
Zbk
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Before the season, all I had to do was remove the side leg and visual details

in the meantime I invite you to my channel on YT:
https://www.youtube.com/channel/UCKZ...FQarzsGhF9UmHw
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Old March 25th, 2020, 11:35 AM   #29
Zbk
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Hi to all!

I present to you my new purchase. My second moto for road use. I bought it on last saturday

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1 out of 1 members found this post helpful.
Old March 25th, 2020, 03:53 PM   #30
DannoXYZ
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OOhh, Ahhh very nice!
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Old March 26th, 2020, 06:29 AM   #31
Zbk
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Due to the coronavirus, the tracks are closed and all events canceled. I hope everything is back to normal, and now I will have more time for service during this period.
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