ninjette.org

Go Back   ninjette.org > 2008 - 2012 Ninja 250R > 2008 - 2012 Ninja 250R Tech Talk

Notices

Reply
 
Thread Tools
Old October 9th, 2013, 09:20 AM   #1
cuong-nutz
RIP Alex
 
cuong-nutz's Avatar
 
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011

Motorcycle(s): '10 250r, '09 265r

Posts: A lot.
Blog Entries: 2
300 motor in 250 frame

After studying pictures, and part numbers, it looks like it'll fit in the 250 frame. @Lychee mentions the exact same reference points on the newgen. I don't think it'll work on a pregen motor since the mounting points are different: http://www.ninjette.org/forums/showthread.php?t=117632....unless you swap over the front engine mounts from that engine generation.

The intake side of the head of the motor may possibly be the same diameter as the 250 motor. If you look at the 300 TB boots, it necks down from large to small. You COULD possibly reuse your 250 carbs and rejet, but why bother when you can have full EFI!

It makes me giddy thinking I can do a complete 300 motor swap in my 250

Top 3 pictures are the newgen front motor mounts.
Then 2 pregen motor mounts and then 4 300 motor mounts. I'll have to see if the pre pregen motor mounts are similar.
Attached Images
File Type: jpg newgenmount.jpg (81.7 KB, 33 views)
File Type: jpg newgenmount1.jpg (76.7 KB, 20 views)
File Type: jpg newgenmount2.jpg (75.8 KB, 13 views)
File Type: jpg pregenenginemount.jpg (68.7 KB, 22 views)
File Type: jpg pregenenginemount1.jpg (72.3 KB, 15 views)
File Type: jpg P1720514.JPG (113.8 KB, 16 views)
File Type: jpg P1720515.JPG (112.4 KB, 12 views)
File Type: jpg P1720516.JPG (101.6 KB, 10 views)
File Type: jpg P1720517.JPG (110.2 KB, 8 views)
__________________________________________________
HalfFast Racing Team
Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days
cuong-nutz is offline   Reply With Quote




Old October 9th, 2013, 09:25 AM   #2
allanoue
ninjette.org certified postwhore
 
allanoue's Avatar
 
Name: Al
Location: York, Pa
Join Date: Dec 2012

Motorcycle(s): 2013 Ninja 300..............2008 Ninja 500-sold...2009 Ninja 250-Crashed

Posts: Too much.
MOTM - Sep '14
@alex.s aslo wants to do this I think
allanoue is offline   Reply With Quote


Old October 14th, 2013, 09:07 PM   #3
PeeFo
ninjette.org member
 
Name: Paul
Location: Escondido CA
Join Date: May 2011

Motorcycle(s): 1989 250 ninja

Posts: 14
I am currently working on this. I bought a pregen for a couple hundred bucks with a blown motor and in looking for a replacement i was able to get a 300 motor for about the same money as a 250. I can confirm that the motor bolts right in and is almost identical externally. I am going to run the 300 motor on carbs at least to start out. I am kind of at a halt right now figuring out what to do about the exhaust because it will have to be a custom job. I will post some pics next time im in the garage
PeeFo is offline   Reply With Quote


Old October 15th, 2013, 07:06 AM   #4
crazymadbastard
I'm crazy,your excuse is?
 
crazymadbastard's Avatar
 
Name: Winston
Location: Connecticut
Join Date: May 2013

Motorcycle(s): 250 2007 ninja

Posts: A lot.
how would you handle the ignition? Electronics scare me!
__________________________________________________
My Cafe Racer Build
My intro post
crazymadbastard is offline   Reply With Quote


Old October 15th, 2013, 07:18 AM   #5
cuong-nutz
RIP Alex
 
cuong-nutz's Avatar
 
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011

Motorcycle(s): '10 250r, '09 265r

Posts: A lot.
Blog Entries: 2
Quote:
Originally Posted by PeeFo View Post
I am currently working on this. I bought a pregen for a couple hundred bucks with a blown motor and in looking for a replacement i was able to get a 300 motor for about the same money as a 250. I can confirm that the motor bolts right in and is almost identical externally. I am going to run the 300 motor on carbs at least to start out. I am kind of at a halt right now figuring out what to do about the exhaust because it will have to be a custom job. I will post some pics next time im in the garage
I take it you're going to reuse the stock exhaust and have a shop fab the rear section of the exhaust. Did you use the 300 front engine brackets or reused the stock pregren engine mounts?

Quote:
Originally Posted by crazymadbastard View Post
how would you handle the ignition? Electronics scare me!
I don't know the specifics of the 300 but he can reuse the stock CDI and rejet for the motor for the time being.
__________________________________________________
HalfFast Racing Team
Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days
cuong-nutz is offline   Reply With Quote


Old October 15th, 2013, 07:48 AM   #6
choneofakind
ninjette.org certified postwhore
 
Name: .
Location: .
Join Date: Feb 2011

Motorcycle(s): .

Posts: Too much.
MOTM - Feb '13, Feb '14
You'd have to look into the pick-ups for the 300 before doing that.

I know the pregen uses 4 pickups. I also know the efi version of the newgen uses more pickups than the carb version of the newgen. (From talking to shadowwolf about his oe efi retrofit). That might be the only issue with using the stock CDI with a 300 engine; too many pickups for the CDI.

Might be easier to do the whole shebang at once and go with the entire oe efi setup
choneofakind is offline   Reply With Quote


Old October 15th, 2013, 07:54 AM   #7
cuong-nutz
RIP Alex
 
cuong-nutz's Avatar
 
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011

Motorcycle(s): '10 250r, '09 265r

Posts: A lot.
Blog Entries: 2
Quote:
Originally Posted by choneofakind View Post
You'd have to look into the pick-ups for the 300 before doing that.

I know the pregen uses 4 pickups. I also know the efi version of the newgen uses more pickups than the carb version of the newgen. (From talking to shadowwolf about his oe efi retrofit). That might be the only issue with using the stock CDI with a 300 engine; too many pickups for the CDI.

Might be easier to do the whole shebang at once and go with the entire oe efi setup
What are you referring the picks up to?
__________________________________________________
HalfFast Racing Team
Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days
cuong-nutz is offline   Reply With Quote


Old October 15th, 2013, 08:46 AM   #8
crazymadbastard
I'm crazy,your excuse is?
 
crazymadbastard's Avatar
 
Name: Winston
Location: Connecticut
Join Date: May 2013

Motorcycle(s): 250 2007 ninja

Posts: A lot.
Quote:
Originally Posted by cuong-nutz View Post
What are you referring the picks up to?
Ignition system pickus- they tell the computer at what location the crank is at so that it knows when/wher to fire- just like ignition points.
__________________________________________________
My Cafe Racer Build
My intro post
crazymadbastard is offline   Reply With Quote


Old October 15th, 2013, 08:50 AM   #9
cuong-nutz
RIP Alex
 
cuong-nutz's Avatar
 
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011

Motorcycle(s): '10 250r, '09 265r

Posts: A lot.
Blog Entries: 2
Yeah, that's what I kind of figured. I need to do some more researching.
__________________________________________________
HalfFast Racing Team
Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days
cuong-nutz is offline   Reply With Quote


Old October 15th, 2013, 08:59 AM   #10
crazymadbastard
I'm crazy,your excuse is?
 
crazymadbastard's Avatar
 
Name: Winston
Location: Connecticut
Join Date: May 2013

Motorcycle(s): 250 2007 ninja

Posts: A lot.
Quote:
Originally Posted by cuong-nutz View Post
Yeah, that's what I kind of figured. I need to do some more researching.
There's the rub, we need to see if we can use the 250 wheel and pickup on the 300 motor. Or maybe someone has used megasquirt to run the stock efi hardware.
__________________________________________________
My Cafe Racer Build
My intro post
crazymadbastard is offline   Reply With Quote


Old October 15th, 2013, 09:41 AM   #11
cuong-nutz
RIP Alex
 
cuong-nutz's Avatar
 
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011

Motorcycle(s): '10 250r, '09 265r

Posts: A lot.
Blog Entries: 2
Quote:
Originally Posted by crazymadbastard View Post
There's the rub, we need to see if we can use the 250 wheel and pickup on the 300 motor. Or maybe someone has used megasquirt to run the stock efi hardware.
Eyeballing the parts, it looks like you can swap the rotors over. The only thing I am unsure of is the 300's sensor read input. Perhaps swap the whole pregren stator, cover, and wiring over onto the 300 block?

300 crank angle sensor resistance 180-280 ohms
250 crank angle sensor resistance 100-150 ohms
300 crank angle sensor peak voltage 4.5 V
250 crank angle sensor peak voltage 3.2 V

Oh, and the 300's rotor has a crap ton of pick ups @choneofakind. Take a look:
Attached Images
File Type: jpg ninja300rotoralternator.JPG (28.1 KB, 24 views)
File Type: jpg 250300rotoralternator.JPG (83.0 KB, 22 views)
__________________________________________________
HalfFast Racing Team
Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days
cuong-nutz is offline   Reply With Quote


Old October 15th, 2013, 10:22 AM   #12
choneofakind
ninjette.org certified postwhore
 
Name: .
Location: .
Join Date: Feb 2011

Motorcycle(s): .

Posts: Too much.
MOTM - Feb '13, Feb '14
One more excuse to transplant the OE EFI from the 300 to the franken-bike it's going into. The heck with those carbs
choneofakind is offline   Reply With Quote


Old October 15th, 2013, 10:22 AM   #13
cuong-nutz
RIP Alex
 
cuong-nutz's Avatar
 
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011

Motorcycle(s): '10 250r, '09 265r

Posts: A lot.
Blog Entries: 2
Extra info about the 250 and 300 motor and tranny and extra.
Attached Images
File Type: jpg 250300comparo1.jpg (77.2 KB, 52 views)
File Type: jpg 250300comparo2.jpg (83.0 KB, 39 views)
__________________________________________________
HalfFast Racing Team
Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days
cuong-nutz is offline   Reply With Quote


Old October 15th, 2013, 10:24 AM   #14
cuong-nutz
RIP Alex
 
cuong-nutz's Avatar
 
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011

Motorcycle(s): '10 250r, '09 265r

Posts: A lot.
Blog Entries: 2
Quote:
Originally Posted by choneofakind View Post
One more excuse to transplant the OE EFI from the 300 to the franken-bike it's going into. The heck with those carbs
werd
__________________________________________________
HalfFast Racing Team
Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days
cuong-nutz is offline   Reply With Quote


Old October 15th, 2013, 08:15 PM   #15
PeeFo
ninjette.org member
 
Name: Paul
Location: Escondido CA
Join Date: May 2011

Motorcycle(s): 1989 250 ninja

Posts: 14
here is a pic of my project bike torn apart in a million pieces

here the 300 motor that i just put the 250 clutch cover on


here is a pic showing how the carb boots slide onto the 300 head
PeeFo is offline   Reply With Quote


Old October 15th, 2013, 08:22 PM   #16
PeeFo
ninjette.org member
 
Name: Paul
Location: Escondido CA
Join Date: May 2011

Motorcycle(s): 1989 250 ninja

Posts: 14
I would love to run efi, but I am missing a few of the sensors required and I dont have the fuel pump. I do have the complete wiring harness ecu and throttlebody assembly. I think it will be alot easier for me to get it running and dialed in on the carbs. I didn't realize the crank angle sensors are different so I will probably swap the 250 stator bits over.
Any ideas on what jet sizes I should start tuning from?
PeeFo is offline   Reply With Quote


Old October 15th, 2013, 08:28 PM   #17
JohnnyBravo
Certifiable nontundrum
 
JohnnyBravo's Avatar
 
Name: Harper
Location: NC Milkshake stand
Join Date: Mar 2013

Motorcycle(s): 2013 SE NINJA 300

Posts: Too much.
MOTM - Sep '13, Sep '16
__________________________________________________
JohnnyBravo is offline   Reply With Quote


Old October 15th, 2013, 10:00 PM   #18
choneofakind
ninjette.org certified postwhore
 
Name: .
Location: .
Join Date: Feb 2011

Motorcycle(s): .

Posts: Too much.
MOTM - Feb '13, Feb '14
Your cylinder size is very similar to that of a 600cc bike. What main jets do they run? 130's?
choneofakind is offline   Reply With Quote


Old October 18th, 2013, 12:40 PM   #19
bandit_fosky
ninjette.org member
 
Name: darren
Location: borehamwood
Join Date: May 2012

Motorcycle(s): ninja 250 r

Posts: 48
im verycurious to know how far you have got im considering this for my 250 here in the uk but also considering the 500 swap
bandit_fosky is offline   Reply With Quote


Old November 23rd, 2013, 01:25 PM   #20
PeeFo
ninjette.org member
 
Name: Paul
Location: Escondido CA
Join Date: May 2011

Motorcycle(s): 1989 250 ninja

Posts: 14
Allright so i had a few hours to play with the bike this morning, so I hooked up all the various sensors, cleaned my carbs and pulled her outside to see if it would run and if my wiring job was ok. Forgive the ****** video quality as I was trying to hit the starter button, film and work the choke at the same time.

Link to original page on YouTube.

Lots of work left to do, but before I start ordering pods and jets and tires I wanted to make sure this motor was good. Was definitely a big relief hearing that dude fire up

PeeFo is offline   Reply With Quote


1 out of 1 members found this post helpful.
Old December 21st, 2013, 06:45 PM   #21
EMSRacer07
ninjette.org sage
 
EMSRacer07's Avatar
 
Name: Byron
Location: Reno, NV
Join Date: Dec 2011

Motorcycle(s): Ninja ex250 1990

Posts: 761
more pics please @PeeFo
__________________________________________________
1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust
EMSRacer07 is offline   Reply With Quote


Old December 21st, 2013, 08:33 PM   #22
JohnnyBravo
Certifiable nontundrum
 
JohnnyBravo's Avatar
 
Name: Harper
Location: NC Milkshake stand
Join Date: Mar 2013

Motorcycle(s): 2013 SE NINJA 300

Posts: Too much.
MOTM - Sep '13, Sep '16
What the heck was I doin 23 nov to miss that vid being posted?
Lookin good!
__________________________________________________
JohnnyBravo is offline   Reply With Quote


Old December 23rd, 2013, 07:58 AM   #23
TonyKZ1
ninjette.org member
 
TonyKZ1's Avatar
 
Name: Anthony
Location: Marble Hill, MO
Join Date: Dec 2008

Motorcycle(s): 1975 Kawasaki KZ400D (Sold), 1989 Kawasaki Ninja 250 (sold), 1997 Yamaha XJ600s Seca II

Posts: 231
Wow, good luck and keep us updated with your progress.
Tony
__________________________________________________
1997 Yamaha Seca II - mostly stock, Racetech upgraded forks, FZ6R rear shock, Oxford Heated Grips, Barkbusters Blizzard Handguards, a Scottoiler vSystem chain oiler. My Mileage Tracker Page.
TonyKZ1 is offline   Reply With Quote


Old December 30th, 2013, 07:12 AM   #24
espacef1fan
ninjette.org member
 
Name: ADAM
Location: fort campbell, ky
Join Date: Mar 2012

Motorcycle(s): Suzuki TL1000R

Posts: 112
Do you have some detailed pictures of the 300 engine bolted up?
__________________________________________________
Have Pregen 250. WTT for a dual sport... 250cc and up
espacef1fan is offline   Reply With Quote


Old January 6th, 2014, 06:52 PM   #25
chugs
Schönen Tag noch
 
chugs's Avatar
 
Name: c
Location: Central Cali
Join Date: Sep 2013

Motorcycle(s): 08 ninja 250 race bike, 02 gixxer 600 telefonica

Posts: 184
Quote:
Originally Posted by espacef1fan View Post
Do you have some detailed pictures of the 300 engine bolted up?
+2 more pix.
chugs is offline   Reply With Quote


Old January 6th, 2014, 08:23 PM   #26
EMSRacer07
ninjette.org sage
 
EMSRacer07's Avatar
 
Name: Byron
Location: Reno, NV
Join Date: Dec 2011

Motorcycle(s): Ninja ex250 1990

Posts: 761
Quote:
Originally Posted by espacef1fan View Post
Do you have some detailed pictures of the 300 engine bolted up?
I can try to get a few pics up tomorrow. Basically for the pregen you need to grind both front mount sides about 1/8 inch from both sides for the 300 engine to fit. Rear mounts are the same.

I bet with newgen 250 it might go straight in since the front mounts are different. But to keep the pregen radiator you would need the pregen mounts.

Also the exhaust needs to be modified a bit since the body on the 300 is wider than the pregen.


I almost got mine running. Just a matter of figuring out where I am going to put stuff. Everything is already plugged in and figured out what i needed for the fuel pump. Should be running possibly by next week.
__________________________________________________
1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust
EMSRacer07 is offline   Reply With Quote


Old January 7th, 2014, 01:45 PM   #27
InvisiBill
EX500 full of EX250 parts
 
InvisiBill's Avatar
 
Name: Bill
Location: Grand Rapids-ish, MI
Join Date: Jul 2012

Motorcycle(s): '18 Ninja 400 • '09 Ninja 500R (selling) • '98 VFR800 (project) • '85 Vulcan VN700 (sold)

Posts: A lot.
Blog Entries: 1
MOTM - Aug '15
Quote:
Originally Posted by choneofakind View Post
Your cylinder size is very similar to that of a 600cc bike. What main jets do they run? 130's?
FYI, the EX500 uses 130's and they're known for being rich up top.

But I hate carbs, so I'd do anything I could to bring the 300's FI over along with the engine. If Ecotrons had a 250-style, all-in-one FI kit for the 500, I probably would've ordered it by now.
InvisiBill is offline   Reply With Quote


Old January 7th, 2014, 01:53 PM   #28
choneofakind
ninjette.org certified postwhore
 
Name: .
Location: .
Join Date: Feb 2011

Motorcycle(s): .

Posts: Too much.
MOTM - Feb '13, Feb '14
Quote:
Originally Posted by InvisiBill View Post
FYI, the EX500 uses 130's and they're known for being rich up top.

But I hate carbs, so I'd do anything I could to bring the 300's FI over along with the engine. If Ecotrons had a 250-style, all-in-one FI kit for the 500, I probably would've ordered it by now.
Good to know, it was just a ballpark guess for where to start. I figured the 600cc bike would have larger main jets than needed because their intakes are tuned for high end.

I'm sure you could modify that system for a 500 easily. The engines are very similar to the pregen. Same number of ignition pickups (I think). You'd just need to get it wired right and fiddle with the TB's/injectors a bit. That ecotrons system is very easy to work with and tune. If you're really serious, email the company and ask about it. They're pretty good about working with you.
choneofakind is offline   Reply With Quote


Old January 8th, 2014, 01:53 PM   #29
PartsNinja
Ninja Parts Master
 
PartsNinja's Avatar
 
Name: Dan
Location: Houma, Louisiana
Join Date: Aug 2013

Motorcycle(s): 2011 Ducati Streetfighter 1098, 2014 Honda CB1100 Cafe, 2007 SV1000S, Quite a few 2008-2012 Ninja 250s

Posts: 366
@cuong-nutz If you need any sensors or small bits or ANYTHING off of a 300 to make this work, let Parts Ninja know (We are curious to see how this works out and could do special pricing on the parts), we just got a really nice condition 2013 that will be stripped down starting this weekend. We should have any part you could possibly require.
__________________________________________________
Add me on Instagram: @d_jalb Or follow me on eBay: PartsNinja
PartsNinja is offline   Reply With Quote


Old January 8th, 2014, 06:25 PM   #30
mgentz
Board Member
 
Name: ...
Location: WI
Join Date: Dec 2011

Motorcycle(s): 250R (street), 250R (dirt)

Posts: A lot.
^ awesome right there...
mgentz is offline   Reply With Quote


Old January 20th, 2014, 11:08 AM   #31
johninja
ninjette.org newbie
 
Name: Johnny
Location: San Antonio
Join Date: Apr 2013

Motorcycle(s): 09 ninja 250

Posts: 2
So how many guys have successfully translated the 300 engine in the 250
johninja is offline   Reply With Quote


Old January 20th, 2014, 12:30 PM   #32
EMSRacer07
ninjette.org sage
 
EMSRacer07's Avatar
 
Name: Byron
Location: Reno, NV
Join Date: Dec 2011

Motorcycle(s): Ninja ex250 1990

Posts: 761
Quote:
Originally Posted by johninja View Post
So how many guys have successfully translated the 300 engine in the 250
Hmm well i am hoping to start mine this week.
__________________________________________________
1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust
EMSRacer07 is offline   Reply With Quote


Old January 20th, 2014, 12:36 PM   #33
mgentz
Board Member
 
Name: ...
Location: WI
Join Date: Dec 2011

Motorcycle(s): 250R (street), 250R (dirt)

Posts: A lot.
A few of us have more power than 300
mgentz is offline   Reply With Quote


Old January 25th, 2014, 03:03 PM   #34
Alex
ninjette.org dude
 
Alex's Avatar
 
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, '15 CRF110F, '13 TT-R50E

Posts: Too much.
Blog Entries: 7
Here's one thread with someone just finishing putting a 300 engine into a pre-gen:

http://www.ninjette.org/forums/showthread.php?t=165565
__________________________________________________
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)
Alex is offline   Reply With Quote


Old March 27th, 2014, 11:03 AM   #35
mjegan
ninjette.org member
 
Name: Matt
Location: Buffalo, NY
Join Date: Apr 2013

Motorcycle(s): 1999 Ninja 250

Posts: 33
Did you end up swapping the flywheel to get the correct ignition patern?
mjegan is offline   Reply With Quote


Old March 27th, 2014, 11:16 AM   #36
EMSRacer07
ninjette.org sage
 
EMSRacer07's Avatar
 
Name: Byron
Location: Reno, NV
Join Date: Dec 2011

Motorcycle(s): Ninja ex250 1990

Posts: 761
Quote:
Originally Posted by mjegan View Post
Did you end up swapping the flywheel to get the correct ignition patern?
For me I just took everything, wiring harness, ecu, etc and everything works great.

Idk how PeeFo did his, might have to make sure the pickups are the same for the pregen
__________________________________________________
1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust
EMSRacer07 is offline   Reply With Quote


Old March 27th, 2014, 11:38 AM   #37
mjegan
ninjette.org member
 
Name: Matt
Location: Buffalo, NY
Join Date: Apr 2013

Motorcycle(s): 1999 Ninja 250

Posts: 33
I've looked into it and the 300 and 250 flywheel have a different pickup pattern. I'm curious to how smoothing it works with a different tooth count.
mjegan is offline   Reply With Quote


Old October 6th, 2014, 08:40 AM   #38
ninja2007
ninjette.org member
 
Name: Zach
Location: Beaufort NC
Join Date: Aug 2014

Motorcycle(s): 2007 Ninja

Posts: 69
Does the Pregen or 08-12 exhaust fit the under the 300 engine?

Thanks,

Zach
ninja2007 is offline   Reply With Quote


Old October 6th, 2014, 08:49 AM   #39
EMSRacer07
ninjette.org sage
 
EMSRacer07's Avatar
 
Name: Byron
Location: Reno, NV
Join Date: Dec 2011

Motorcycle(s): Ninja ex250 1990

Posts: 761
Quote:
Originally Posted by ninja2007 View Post
Does the Pregen or 08-12 exhaust fit the under the 300 engine?

Thanks,

Zach
The stock 300 exhaust does a S shape under the oil pan. So you could make it fit but i dont think it would clear the oil pan without any modification. Pregen doesnt work at all.
__________________________________________________
1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust
EMSRacer07 is offline   Reply With Quote


Old October 7th, 2014, 04:36 AM   #40
ninja2007
ninjette.org member
 
Name: Zach
Location: Beaufort NC
Join Date: Aug 2014

Motorcycle(s): 2007 Ninja

Posts: 69
Quote:
Originally Posted by EMSRacer07 View Post
The stock 300 exhaust does a S shape under the oil pan. So you could make it fit but i dont think it would clear the oil pan without any modification. Pregen doesnt work at all.
Thanks!
ninja2007 is offline   Reply With Quote


Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Comparing the 250 & 300 motor/engine (Version 2) cuong-nutz 2008 - 2012 Ninja 250R Tech Talk 147 May 1st, 2023 08:34 PM
Comparing the 250 and 300 motor/engine (picture intense) cuong-nutz 2008 - 2012 Ninja 250R Tech Talk 24 May 9th, 2014 03:48 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Motorcycle Safety Foundation

All times are GMT -7. The time now is 11:46 AM.


Website uptime monitoring Host-tracker.com
Powered by vBulletin®
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Except where otherwise noted, all site contents are © Copyright 2022 ninjette.org, All rights reserved.