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#1 |
blasting Ninja's
Name: Andy
Location: Kansas
Join Date: Jan 2009 Motorcycle(s): Ninja 250R 08 Posts: 1
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Ninja 250R 08 big bore kit
Need to upgrade the engine performance for my 250R 08, but i can's found the big bore kit in the market. Do you have one? Or someone else can do that?
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#2 |
ninjette.org dude
Name: 1 guess :-)
Location: SF Bay Area
Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much.
Blog Entries: 7
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Haven't seen one for the Ninja 250. Here's a link to Wiseco big bore kits, which they make for a whole pile of different Kawasaki streetbikes (and other makes), but no kit for the 250:
http://www.procycle-online.com/bigbore/bbstreet_kaw.htm When people go about improving the ninja 250's engine performance, for street use at least, typical mods include intake improvements/exhaust improvements/timing, rather than wholesale component replacement. There's no technical reason why more couldn't be done, but at some point the costs would be hard to justify instead of choosing a different bike to start with more power.
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Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered) |
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#3 | |
ninjette.org newbie
Name: Thadd
Location: big torch key
Join Date: Nov 2009 Motorcycle(s): many Posts: 2
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Many people don't know this, buuuuuuut the ex 500 motor fits in the ninja 250 frame with no alterations. I know this true on the older ones, I believe true on the newer ones. Just look up part numbers for the motor mounts. This was a fast mod to get under the insurance laws when the 250 first came out. Enjoy!! |
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#4 | |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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#5 |
ninjette.org newbie
Name: Thadd
Location: big torch key
Join Date: Nov 2009 Motorcycle(s): many Posts: 2
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I don't have pics. But I did it with a 98 250 and a crashed 500.
It was when I was working for a local dealer. We checked the mounts and stuff, same part numbers. That's all I can tell ya. Sorry, no pics. I don't even have pics for the custom frame and body work I've done. And none of the drag bike frames I made. Sorry again. Go online to riva motorsports in key largo Florida. They have a parts breakdown for all the bikes. I think prices along with part numbers Posted via Mobile Device |
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#6 |
The Sportisi Master
Name: Matt
Location: Chico
Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.
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Jean hes right the motor does fit. I just shipped a complete assembly over to indo for a guy to install there.
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Sportisimoto USA is born. |
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#7 |
CPT Falcon
Name: J.Emmett Turner
Location: Newnan, GA
Join Date: Apr 2009 Motorcycle(s): '08 CP Blue EX250J, '97 unpainted EX250F, 2nd '97 unpainted EX250F (no engine), '07 black EX250F Posts: A lot.
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Which is awesome because now he can get around that silly tax limitation that they have to deal with there (makes anything larger than a 250 not affordable).
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#8 |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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Sweet...one of the US folks need to do the conversion. I saw some complete used motor on eBay for $500. I'd love to have one although the mech skill is over my head
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#9 |
The Sportisi Master
Name: Matt
Location: Chico
Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.
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Jean its not super hard to do actually just takes patience. CZroe the tax there is ridiculous a new zx14 cost $45000. But we found a way around that
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Sportisimoto USA is born. |
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#10 | |
North Alabama Mtn. ryder
Name: Nate
Location: Alabama
Join Date: May 2009 Motorcycle(s): 2006 Posts: 537
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QTRltrPWR |
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#11 |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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You can go for high compression pistons in the stock bore . 12.5 to 1 will certainly perk things up . or BEET racing has a 265 kit. You just need to bore the stock cylinder out to fit. Should not cost much for machine work .Of course a free flow exhaust and filter with jetting and tuning will be required to get the most out of either setup
http://www.beet.co.jp/english/kawasa...50r/index.html |
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#12 |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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Racerx, all that beet and bore will be load of dough...just drop in a 500 for much cheaper if it fits... You'll get more torque and power.
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#13 | |
ninjette.org member
Name: Darryl
Location: Brisbane, Australia
Join Date: Dec 2008 Motorcycle(s): 2010 Ninja ZX-6R Posts: 211
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Quote:
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#14 |
The Sportisi Master
Name: Matt
Location: Chico
Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.
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Beet makes a 285 kit as well. NOTE you must send them your cylinders for machining if ordering the kit. This makes the kit unattractive to people in the US. But I have seen people in Asia acquire the kits which makes this one giant CF.
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Sportisimoto USA is born. |
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#15 |
ninjette.org member
Name: M
Location: Oklahoma
Join Date: Jun 2009 Motorcycle(s): Ninja 250 x2, Ninja 650R Posts: 165
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The least expensive and most cost effective upgrade is the rider's skillset. As an added bonus, it'll transfer to any future cycle you own.
Racer X is 'dead-on' for the the 1%ers looking to squeak everything out of the 250 class. |
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#16 |
The Sportisi Master
Name: Matt
Location: Chico
Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.
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I am one of those squeakers. But it is only because of the business being connected to the 250.
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Sportisimoto USA is born. |
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#17 |
Newb..... on a steeek! :D
Name: Mike
Location: Windermere, FL
Join Date: Feb 2009 Motorcycle(s): 2012 Harley Davidson XL883L Sportster Superlow Posts: A lot.
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Well if it's been confirmed that the 500 motor fits in the 250 frame, then I got news for you. That would mean the 650 motor will fit too. Believe it or not, but the outter dimensions of the 650 motor are smaller then the 500 making it lighter and slimmer. Imagine putting one of those puppies in the 250 frame.......... 71hp with about 48lb-ft of torque.
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#18 | |
North Alabama Mtn. ryder
Name: Nate
Location: Alabama
Join Date: May 2009 Motorcycle(s): 2006 Posts: 537
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Quote:
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QTRltrPWR |
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#19 |
ninjette.org member
Name: Jordan
Location: Corte Madera
Join Date: Jun 2009 Motorcycle(s): 06 Ninja 650R, 08 Ninja 250R, 00 Aprilia SR50 (dead) Posts: 94
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Why wouldn't you just buy a Ninja 650R then?
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#20 |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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Bc then there would be nothing to talk about if everyone just buy a 650.
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#21 |
North Alabama Mtn. ryder
Name: Nate
Location: Alabama
Join Date: May 2009 Motorcycle(s): 2006 Posts: 537
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well there's really nothing but talk..notice how there's no video's or photos's just empty talk
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QTRltrPWR |
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#22 |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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#23 | |
ninjette.org certified postwhore
Name: Dave
Location: Michigan
Join Date: May 2009 Motorcycle(s): 2009 Kawasaki Ninja 650RTE & 2009 Kawasaki Ninja 250R (SOLD) Posts: A lot.
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#24 |
The Sportisi Master
Name: Matt
Location: Chico
Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.
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We should do a Build as a Forum. Find a salvaged bike with next to no damage and put in the 650 motor then whoever pitched in is eligible for a raffle. That would be sweet. No one would ever go for it but it would be sweet.
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Sportisimoto USA is born. |
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#25 |
ninjette.org member
Name: John
Location: Buffalo NY
Join Date: Sep 2009 Motorcycle(s): Ninja Posts: 122
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Subscribed. Sounds like it would be a fun winter project to do just because.
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#26 |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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I was going to put a 250 engine into a 500 frame. it is bigger and would give plenty of room to work with . As far as hiding from the wind and building a fairing. It is way different. If I could of the amount of fabrication it would take to do that . I would also have the skill and tools to just make a frame. . It can be done no problem . But it is not a bolt in at all . This is some photos from EBay just to have a look
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#27 |
ninjette.org certified postwhore
Name: Lil One
Location: NB Canada
Join Date: Mar 2009 Motorcycle(s): '09 Ninja 250 Black Posts: A lot.
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does this go for both pre gens and post gens?
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#28 |
ninjette.org guru
Name: Justin
Location: Mobile, AL/Memphis, TN
Join Date: Nov 2009 Motorcycle(s): '08 250R/'10 ZX6R/'02 YZ125/'06 DRZ125L/'05 Blaster Posts: 346
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Very interested in this. I bet I could piss quite a few people off on tracks or drag strips if they're beaten by what seems to be a 250R. I'd love to say my painted parts gave me all that extra horsepower.
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#29 |
ninjette.org member
Name: Rob
Location: Montreal, Canada
Join Date: Apr 2009 Motorcycle(s): '09 Ninja 250R Posts: 171
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The ugly Banana Seat, the sports touring look, the insurance costs, and the sheer pleasure i'd have in watching people's jaws drop when they see what a "250" can do.
I love sleepers.
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#30 |
Sleeper Central
Name: Chadwick
Location: Bemidji
Join Date: Oct 2010 Motorcycle(s): CBR400RR KZ400 CB350 CB500FOUR FZR400 FZR600 Ninja 250 Ninja 500 R6 Posts: 5
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Pictures! Proof!
I have some pictures of a build I just finished- I did a 2009 250 chassis / 1990 EX500 engine build I'll have to post some soon. The older engine does NOT bolt right in to the newer chassis. I'm not sure if the same goes for the older 250 chassis, but I had to make mounts and use spacers to get the offset correct.
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#31 |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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Sweet. Pics plz
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#32 |
ninjette.org member
Name: Bob
Location: Centreville va
Join Date: Sep 2010 Motorcycle(s): 1991 EX500 , 2009 250r Posts: 130
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This is interesting. I happen to have an 09 250r and a 91 ex500. I've read that a stock ex500 motor can twist a stock ex500 frame when pushed hard at the track. So the 250r frame might not be that bad. I'll have to look the two carefully.
I'll probably still just rebuild my 500 separately anyway. I actually like the 250 the way it is, after the needle shim and snorkel removal that is. But if I can find a cheap 250r frame for a build out, I may put the 500 in that. Save on insurance ![]() Bob |
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#33 |
The Sportisi Master
Name: Matt
Location: Chico
Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.
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Sportisimoto USA is born. |
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#34 |
ninjette.org member
Name: Bob
Location: Centreville va
Join Date: Sep 2010 Motorcycle(s): 1991 EX500 , 2009 250r Posts: 130
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How does it ride?
Thx Bob |
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#35 |
ninjette.org member
Name: Steve
Location: Cumberland Plateau
Join Date: Aug 2010 Motorcycle(s): KLR 650, XT250, KLX250s, 09 Ninja 250, KT250, Beta 250, Scorpa 250, Sherpa T 350, Penton Jackpiner 175, IT425 Posts: 35
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Kawasaki Ninja 400
Kawasaki makes a Ninja 400 for the European market. I wonder if these engines could be installed in the 250 frame or fit the cylinders/heads to the 250 Ninja engine.
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#36 |
two wheel addict
Name: Kenneth
Location: Simpsonville, SC
Join Date: Apr 2009 Motorcycle(s): 94 xlh 883, 1984 kawi gpz money pit Posts: 556
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Are you talking about the new ninja 400 or the old I4 zx400 engines? The new ninja 400 is the same dimensions as the ninja 650 engine. I highly doubt you could easily get an I-4 engine in the 250 chassis. Plus the biggest issue is that the frame just was not built for a high hp motor
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The M endorsement on my license stands for mental. |
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#37 | |
ninjette.org sage
Name: J
Location: Oklahoma
Join Date: Sep 2010 Motorcycle(s): 2008 250R Posts: 771
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Quote:
I do wonder how much these frames could handle, though. |
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#38 |
Sleeper Central
Name: Chadwick
Location: Bemidji
Join Date: Oct 2010 Motorcycle(s): CBR400RR KZ400 CB350 CB500FOUR FZR400 FZR600 Ninja 250 Ninja 500 R6 Posts: 5
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Higher Quality Installation...
Last futzed with by standard81; November 5th, 2010 at 08:18 PM. Reason: adding pictures |
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#39 |
Sleeper Central
Name: Chadwick
Location: Bemidji
Join Date: Oct 2010 Motorcycle(s): CBR400RR KZ400 CB350 CB500FOUR FZR400 FZR600 Ninja 250 Ninja 500 R6 Posts: 5
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Had to make rear motor mount plates and offset spacers, complete header (y-pipe and mid-pipe), radiator mounts, etc... All kinds of stuff. All without welding to, or otherwise disturbing the 250 chassis. Used the 500 harness and 250 controls and gauges. Looks stock. Isn't. If you look at the other builds on YouTube and in other various locations, the absence of attention to detail is apparent. Using a piece of flat stock to hold the fairings apart so the exhaust doesn't touch? Are we in Junior High WoodWorking? Not trying to step on anyone's toes, but this isn't exactly an extracurricular art class. The job should be done properly or the wrenches should be put away.
Last futzed with by standard81; November 5th, 2010 at 08:30 PM. Reason: adding info. |
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#40 |
ninjette.org member
Name: HECTOR
Location: Bronx NY
Join Date: Oct 2009 Motorcycle(s): Red 08 250r Posts: 218
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nice Job
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