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Old 03-14-2012, 12:46 PM
Ozzy250 Ozzy250 is offline
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Join Date: Mar 2012
Location: USA CA Inglewood
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Default Make ninja 250 faster

Hey how r u guys doing. I got a 2011 ninja ex250. i like to ride a lot with friends. they all have 600's and over. im able to keep up almost everytime. but on the acceleration it laggs. i understand why. i want to modifity it so on my gear changes the take offs r quicker and also to top end it even more. ive gone up to 100mph but i want it to go faster. any suggestions or ideas you guys might have? and i also take ppl on the back once in a while. so that'll help towards thay also. thanks.
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Old 03-15-2012, 07:50 PM
Ozzy250 Ozzy250 is offline
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Old 03-18-2012, 08:45 AM
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soggydoo soggydoo is offline
Join Date: Feb 2011
Location: Phoenix Oregon, USA
Posts: 53

Originally Posted by DaBlue1 View Post
If you feel you need more horsepower, ask yourself, what exactly do you want the bike to do and how much you want to spend? Sprocket changes take advantage of the HP that's on tap in the stock Ninja. Start there. If that is still not enough, look to spend anywhere from $350-$3000 on upgrades. Want to take off faster? Twist the throttle more. Keep in mind that the fastest, official record holding, & highly modified Ninja running regular gas still only goes 114+ mph in the States.

Because the Ninja is a little shy on the HP side, there's not a lot of power on tap to be had. The Ninja 250 is never going to be a powerful bike. The cost for the extra HP on the Ninja is pretty high for what you get.

Getting more HP, low end power or more top end, is going to be a trade off, meaning that if you want more HP, you lose low-end torque and HP to get there. If you want more low-end umph, you're going to lose top-end speed/HP. Also that great gas mileage you get goes out the window, when you start adding full exhaust, re-jetting and removing the airbox.

Some suggestions on mods for performance gains.

1-5bhp : Exhaust pipe, intake and jet kit.
3-8bhp : Porting, compression increase, cams, performance carbs.
20+bhp : Trade the Ninja 250 for a bigger bike.

Well Said

Do the Jet Kit get the exhaust then learn to ride your Ninja like no other.

I weigh 250# way too heavy to be competitive on a 250 in the straights...yet i have no problems keeping up in the corners .

the Jet kit will make the bike more responsive

with gearing, more bottom end torque will reduce your top speed....
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Old 04-26-2014, 07:14 AM
Nouderstrwe Nouderstrwe is offline
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Join Date: Apr 2014
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A great*exchange of information.

Last edited by Nouderstrwe; 06-07-2014 at 05:14 AM.
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Old 05-05-2014, 11:19 PM
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BoBo BoBo is offline
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Join Date: Oct 2013
Location: NorCal
Posts: 111

Area P full exhaust, jet kit, and tuned = more power
1.96 Miata track prepared
2.98 Q45T v8
3. 08 Ninja 250R w/Venhill stainless steel braided lines, Galfer fluid and sintered pads.
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Old 05-29-2014, 07:40 PM
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Ghostt Ghostt is offline
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Join Date: May 2014
Location: Summer Shade, Ky
Posts: 417

If all you care about is top speed, get a liter bike, if you care about riding and twisties, master the 250.
A.T.G.A.T.T so I may ride another day.

ZX-2R Photo gallery

I'm not your mom and I'm not paying for your parts, so do whatever you want with your own bike.
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