Mods, how did they help?

KELPHYN · August 30th, 2009, 04:32 AM

Okay I sure this has been discuss already but I can't seem to find the answer I'm looking for. "Exactly how did the mods affect performance" Did they make a noticable difference or not? Did top speeds improve? I guess what I'm looking for is if there was any real noticable difference in the upper roll on range. Primarily from 140km to 160+. My bike is stock except for 15 tooth front sprocket. I know everyone talks about shimming and I know what that is. It's just my bike pulls cleanly to redline with no noticably flat spots and plugs show the proper colour, not lean not rich, so I don't know if shimming will do anything. I know quite afew of the members here have done this and was wondering if it was to cure flat spots or just a performance gain. Also did adding a pipe make that much of difference in top end roll on. I realize these are only 250's and it's not going to pull my arms out of their sockets, that's not what I was looking for when I picked this bike. Overall I am quite happy with the performance but a little extra passing power would be nice. Any response would be appreciated

rockNroll · August 30th, 2009, 05:27 AM

Shimming the needles made the bike actually respond to twisting the throttle, especially when leaving from a stop. When I first rode the bike I was amazed that Kawasaki would sell a bike with throttle response this bad. I tried one, two and three washers and two performed the best. The following day, I drilled the slides and this made a bit of difference in how quick the bike initially responds to twisting the throttle. This is with a stock exhaust system, stock air filter and removed snorkel. The only other power mod I've done is red wheel stripes which add 5-6 rwhp. The other mods were just makin the bike suitable for going around corners.

noche_caliente · August 30th, 2009, 07:24 AM

the exhaust you choose may make a noticeable difference - the Area P full system has a very noticeable impact from the reports that I have seen - check out their website for the dynos and do a search on here to see folks responses... it also seems that replacing the CDI with a pre-gen model is having a nice effect as well.

Since you've been searching, you've probably already seen these threads, but just in case, since they're somewhat relevant and actually active right now:
http://www.ninjette.org/forums/showthread.php?p=22910
http://www.ninjette.org/forums/showthread.php?t=27207

Momaru · August 30th, 2009, 08:29 AM

Somewhere around here was a chart of how each of the various needles/jets affect your bike's power band (ie, what's responsible for giving fuel to your bike at a particular RPM). Someone with a better memory could probably dig it up.

KELPHYN · August 30th, 2009, 07:25 PM

Thanks for the input so far. Guess I'm just trying to decide if it is really worth the $$ for a pipe and don't really want to mess with the jetting as it seems pretty spot on for the area that I ride, ei: starts easy, warms fairly quick depending on temperature, pulls descent from 4500rpm to redline. Just looking for that little more. Oh well, possibly a winter bike fever decission.

August 30th, 2009, 04:32 AM	#1
KELPHYN ninjette.org guru Name: Calvin Location: Quesnel, B.C Join Date: Aug 2009 Motorcycle(s): '08 250R (sold), 2013 300SE Posts: 276	Mods, how did they help? Okay I sure this has been discuss already but I can't seem to find the answer I'm looking for. "Exactly how did the mods affect performance" Did they make a noticable difference or not? Did top speeds improve? I guess what I'm looking for is if there was any real noticable difference in the upper roll on range. Primarily from 140km to 160+. My bike is stock except for 15 tooth front sprocket. I know everyone talks about shimming and I know what that is. It's just my bike pulls cleanly to redline with no noticably flat spots and plugs show the proper colour, not lean not rich, so I don't know if shimming will do anything. I know quite afew of the members here have done this and was wondering if it was to cure flat spots or just a performance gain. Also did adding a pipe make that much of difference in top end roll on. I realize these are only 250's and it's not going to pull my arms out of their sockets, that's not what I was looking for when I picked this bike. Overall I am quite happy with the performance but a little extra passing power would be nice. Any response would be appreciated

August 30th, 2009, 07:24 AM	#3
noche_caliente ninjette.org certified postwhore Name: Kim Location: mundo de ensueño Join Date: Nov 2008 Motorcycle(s): '08 250 Posts: A lot.	the exhaust you choose may make a noticeable difference - the Area P full system has a very noticeable impact from the reports that I have seen - check out their website for the dynos and do a search on here to see folks responses... it also seems that replacing the CDI with a pre-gen model is having a nice effect as well. Since you've been searching, you've probably already seen these threads, but just in case, since they're somewhat relevant and actually active right now: http://www.ninjette.org/forums/showthread.php?p=22910 http://www.ninjette.org/forums/showthread.php?t=27207 __________________________________________________ Progrip tank pad, blue rim stripes, blue Pazzos, Roaring Toyz lowering kit, Puig DB in dark smoke, Cortech sport tail, super mini tank, and saddlebags, OES swingarm spools and Intuitive frame sliders

August 30th, 2009, 08:29 AM	#4
Momaru ninjette.org certified postwhore Name: Paul Location: Roanoke, VA Join Date: Jun 2009 Motorcycle(s): 2008 Candy Plasma Blue 250R Posts: A lot.	Somewhere around here was a chart of how each of the various needles/jets affect your bike's power band (ie, what's responsible for giving fuel to your bike at a particular RPM). Someone with a better memory could probably dig it up. __________________________________________________ Proud member of the Blue Army

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Mods	Old Lemon	2008 - 2012 Ninja 250R Farkles	20	May 5th, 2012 12:37 AM
First Mods	FoxRacerX78X	2008 - 2012 Ninja 250R Farkles	5	April 4th, 2012 03:24 AM
Yes or no on these mods?	Kerberos	General Motorcycling Discussion	19	December 13th, 2011 10:33 AM
Your First Mods	N1nja_N00b	2008 - 2012 Ninja 250R Farkles	32	October 6th, 2011 01:52 PM
What are some MUST have mods?	aznboi250r	2008 - 2012 Ninja 250R Farkles	11	June 26th, 2011 09:52 PM

August 30th, 2009, 05:27 AM	#2
rockNroll . Name: rock Location: greenville, south carolina Join Date: Jun 2009 Motorcycle(s): black Posts: A lot.	Shimming the needles made the bike actually respond to twisting the throttle, especially when leaving from a stop. When I first rode the bike I was amazed that Kawasaki would sell a bike with throttle response this bad. I tried one, two and three washers and two performed the best. The following day, I drilled the slides and this made a bit of difference in how quick the bike initially responds to twisting the throttle. This is with a stock exhaust system, stock air filter and removed snorkel. The only other power mod I've done is red wheel stripes which add 5-6 rwhp. The other mods were just makin the bike suitable for going around corners.

August 30th, 2009, 07:25 PM	#5
KELPHYN ninjette.org guru Name: Calvin Location: Quesnel, B.C Join Date: Aug 2009 Motorcycle(s): '08 250R (sold), 2013 300SE Posts: 276	Thanks for the input so far. Guess I'm just trying to decide if it is really worth the $$ for a pipe and don't really want to mess with the jetting as it seems pretty spot on for the area that I ride, ei: starts easy, warms fairly quick depending on temperature, pulls descent from 4500rpm to redline. Just looking for that little more. Oh well, possibly a winter bike fever decission.