2009 Ninja 250 won't run

Matto55 · October 3rd, 2014, 08:53 AM

Hello everyone!

Currently I have had some problems with my ninja 250 and can't seem to figure out why I can't fix it.

THE PROBLEM: Will start with choke on full and run/idle beautifully. However once the throttle is touched the bike will start dying out. If I take the choke off it also dies. I cleaned the carburetor at least 3 times already and it is spotless and I have connected everything back the way it should be. I do not understand why its not running. It ran great a few days ago and now its doing this. PLEASE PLEASE HELP

I also installed new spark plugs and verified I have spark and that fuel is getting to the carbs. Like I said the bike ran beautifully on Sunday and now it doesn't.

Thank you for taking the time to read this post and I hope we can fix this problem together!

csmith12 · October 3rd, 2014, 09:24 AM

It's gunna be something simple.

Spark - check
Gas - cleaned carb, carbs filling up with gas, spark plugs get wet? Is the gas any good? Water get in the tank somehow?
Air - Something build a home in your airbox or snorkel?

Oh! Welcome Matthew!

jkv45 · October 3rd, 2014, 10:42 AM

Did you clean the idle mixture circuit? That would mean you removed the caps covering the idle mixture screws and removed the screws to clean the passages.

If so, you should have the screws set to 2 1/2 turns out for starters.

If not, you need to pull the carbs again and do it.

As Chris noted, check for an obstructed intake snorkel and make sure the gas is completely fresh. You could also crack open the float bowl drains and see what comes out.

Matto55 · October 3rd, 2014, 12:36 PM

Thank you everyone for your help but unfortunately it was something simple I overlooked ...The idle mixture screw was not turned up enough and therefore had a hard time running. I feel like an idiot now

THANK YOU EVERYONE! and sorry for being a noob

csmith12 · October 3rd, 2014, 12:44 PM

We all make n00b mistakes every now and then. You still have a home here if ya need. Let's see a pic of the bike. Is it red?

Matto55 · October 3rd, 2014, 01:43 PM

Nope its not red, but I was trying to look for a red Ninja before getting a deal on this here blue one

snot · October 3rd, 2014, 03:05 PM

welcome. Glad it was an easy fix.

October 3rd, 2014, 08:53 AM	#1
Matto55 ninjette.org member Name: Matthew Location: Mountain Top PA Join Date: Sep 2014 Motorcycle(s): 2009 Kawasaki Ninja 250; 1999 Kawasaki Klx300R Posts: 25	2009 Ninja 250 won't run Hello everyone! Currently I have had some problems with my ninja 250 and can't seem to figure out why I can't fix it. THE PROBLEM: Will start with choke on full and run/idle beautifully. However once the throttle is touched the bike will start dying out. If I take the choke off it also dies. I cleaned the carburetor at least 3 times already and it is spotless and I have connected everything back the way it should be. I do not understand why its not running. It ran great a few days ago and now its doing this. PLEASE PLEASE HELP I also installed new spark plugs and verified I have spark and that fuel is getting to the carbs. Like I said the bike ran beautifully on Sunday and now it doesn't. Thank you for taking the time to read this post and I hope we can fix this problem together!

October 3rd, 2014, 09:24 AM	#2
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	It's gunna be something simple. Spark - check Gas - cleaned carb, carbs filling up with gas, spark plugs get wet? Is the gas any good? Water get in the tank somehow? Air - Something build a home in your airbox or snorkel? Oh! Welcome Matthew! __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

October 3rd, 2014, 12:44 PM	#5
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	We all make n00b mistakes every now and then. You still have a home here if ya need. Let's see a pic of the bike. Is it red? __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

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October 3rd, 2014, 10:42 AM	#3
jkv45 Rev Limiter Name: Jay Location: WI Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot. MOTM - Jun '18, Oct '16	Did you clean the idle mixture circuit? That would mean you removed the caps covering the idle mixture screws and removed the screws to clean the passages. If so, you should have the screws set to 2 1/2 turns out for starters. If not, you need to pull the carbs again and do it. As Chris noted, check for an obstructed intake snorkel and make sure the gas is completely fresh. You could also crack open the float bowl drains and see what comes out.

October 3rd, 2014, 12:36 PM	#4
Matto55 ninjette.org member Name: Matthew Location: Mountain Top PA Join Date: Sep 2014 Motorcycle(s): 2009 Kawasaki Ninja 250; 1999 Kawasaki Klx300R Posts: 25	Thank you everyone for your help but unfortunately it was something simple I overlooked ...The idle mixture screw was not turned up enough and therefore had a hard time running. I feel like an idiot now THANK YOU EVERYONE! and sorry for being a noob

October 3rd, 2014, 03:05 PM	#7
snot sammich maker Name: snot Location: West Ohio - in the kitchen Join Date: Feb 2012 Motorcycle(s): 2013 white 300, 09 KLX 250 SF, 09 thunder blue 250(traded) Posts: A lot. MOTM - Apr '15	welcome. Glad it was an easy fix.