ninjette.org

Go Back   ninjette.org > 1986 - 2007 Ninja 250R > 1986 - 2007 Ninja 250R Tech Talk

Notices

Reply
 
Thread Tools
Old May 1st, 2010, 04:33 PM   #1
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
Cold Start issue

I have an 03 with 8500 miles, out side its been between 60-90f. I have a hard time getting it started while it is cold... After the motor gets warm it will recrank fine. I have, Changed oil (mobile clean 5000 10-40),Cleaned air filter, ran seafoam, Replaced fuel filter, replaced plugs, Adjusted the air/fuel mix to what seems to be near correct... fresh gas, Cleaned carbs,... tried boosting from a good car battery just to check cranking power. Throttle nor choke seem to make much of a difference.... Even after i get it to crank it still wants to die out until warm... Idle knob is adjusted to approx 1700 rpm while warm... Thanks for all your time
SpYd3r05 is offline   Reply With Quote




Old May 1st, 2010, 04:41 PM   #2
kkim
 
Join Date: Nov 2008

Posts: Too much.
are you using full choke?
kkim is offline   Reply With Quote


Old May 1st, 2010, 04:49 PM   #3
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
tried none full half and every where in between... it was working fine... then seemingly i got a bad batch of gas (my thought of this time) but that gas is gone, fresh in...
SpYd3r05 is offline   Reply With Quote


Old May 1st, 2010, 04:58 PM   #4
kkim
 
Join Date: Nov 2008

Posts: Too much.
My thoughts are that the pilot jet is clogged, but the bike should run if the choke is used on a cold start. is the choke cable adjusted properly at the carbs?

try seafoam again by pouring some directly into the fuel hose so it can be drawn full strength into the carbs. let it sit overnight with that high concentration in the bowls to give the seafoam a chance to break down the goo and try starting it again in the morning.
kkim is offline   Reply With Quote


Old May 1st, 2010, 05:04 PM   #5
Sailariel
ninjette.org certified postwhore
 
Sailariel's Avatar
 
Name: Alex
Location: Belfast, ME
Join Date: Jul 2008

Motorcycle(s): 2010 Honda NT-700-V, formerly, Green 2008 Ninja 250R

Posts: A lot.
Kelly, Remember the good old days when we did not have to worry about "goo" in our gas. Boy, have they screwed up fuel these days!
Sailariel is offline   Reply With Quote


Old May 1st, 2010, 05:04 PM   #6
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
I pulled the carbs soaked everything that could be in carb cleaner for a few hours...
SpYd3r05 is offline   Reply With Quote


Old May 1st, 2010, 05:07 PM   #7
kkim
 
Join Date: Nov 2008

Posts: Too much.
are you saying you just did this a few minutes ago or before the problem started?

when you soaked them, did you remove all the jets and did you blow out the passages after the soak?
kkim is offline   Reply With Quote


Old May 1st, 2010, 05:08 PM   #8
OldGuy
Live Life
 
OldGuy's Avatar
 
Name: Don
Location: Lincoln, NE
Join Date: Nov 2008

Motorcycle(s): 2009 Green SE Ninja 250

Posts: A lot.
Quote:
Originally Posted by Sailariel View Post
Kelly, Remember the good old days when we did not have to worry about "goo" in our gas. Boy, have they screwed up fuel these days!
You wouldn't be referring to "Ethel" at $0.25 a gallon would you
__________________________________________________
- ATGATT -
Scorpion EX700 Hi-Vis Helmet, First Gear MeshTek 3.0 Jacket, TourMaster Transition 2 Jacket and Flex Pants, Sidi Doha boots
OldGuy is offline   Reply With Quote


Old May 1st, 2010, 05:09 PM   #9
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
i did it after the problem started... pulled and cleaned twice.... problem has been going on for like 4 weeks now
SpYd3r05 is offline   Reply With Quote


Old May 1st, 2010, 05:23 PM   #10
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
I'm Probably going to pull carbs again and soak with seafoam and carb cleaner and see... any other suggestions to look into while i have carbs off?
SpYd3r05 is offline   Reply With Quote


Old May 1st, 2010, 05:31 PM   #11
kkim
 
Join Date: Nov 2008

Posts: Too much.
remove and clean the jets and passage ways.

unless you do this, your not really cleaning a carb. did you do this previously?
kkim is offline   Reply With Quote


Old May 1st, 2010, 05:45 PM   #12
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
yes
SpYd3r05 is offline   Reply With Quote


Old May 1st, 2010, 05:49 PM   #13
kkim
 
Join Date: Nov 2008

Posts: Too much.
did you look down the middle of the jets to make sure they were cleaned out? you should be able to see a nice clear hole down the middle.

did you blow out the passage ways w/ compressed air? were you able to feel air passing through to the little exit holes in the carb throat area when you blew from the removed pilot jet passage??

http://faq.ninja250.org/wiki/How_do_...n_the_carbs%3F
kkim is offline   Reply With Quote


Old May 2nd, 2010, 03:58 PM   #14
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
Quote:
Originally Posted by kkim View Post
did you look down the middle of the jets to make sure they were cleaned out? you should be able to see a nice clear hole down the middle.

did you blow out the passage ways w/ compressed air? were you able to feel air passing through to the little exit holes in the carb throat area when you blew from the removed pilot jet passage??

http://faq.ninja250.org/wiki/How_do_...n_the_carbs%3F
Check just cleaned everything again, air through holes... holes for jets all seem clean.. soaked for around 12 hrs in a mix of seafoam and carb cleaner...
SpYd3r05 is offline   Reply With Quote


Old May 2nd, 2010, 03:59 PM   #15
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
it seems to want to hessitate starting but it never will regardless of choke or throttle position.. checked choke seems to be actuating everything..
SpYd3r05 is offline   Reply With Quote


Old May 2nd, 2010, 05:52 PM   #16
kkim
 
Join Date: Nov 2008

Posts: Too much.
Quote:
Originally Posted by SpYd3r05 View Post
Adjusted the air/fuel mix to what seems to be near correct...
what does that mean?
kkim is offline   Reply With Quote


Old May 3rd, 2010, 01:38 AM   #17
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
it means the last owner messed with it but its back to 2.5
SpYd3r05 is offline   Reply With Quote


Old May 4th, 2010, 02:54 PM   #18
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
Just cleaned the gas tank completely and filled up with new gas...would valve adjustment cause a situation that would not start but hesitate a little like it wants to?
SpYd3r05 is offline   Reply With Quote


Old May 5th, 2010, 11:26 AM   #19
SpYd3r05
ninjette.org member
 
SpYd3r05's Avatar
 
Name: Matt
Location: Middle GA
Join Date: May 2010

Motorcycle(s): 2003 Ninja 250

Posts: 184
AND FIXED!!!!.. turns out it was the valve adjustment... one intake was way loose.... and the other three really tight... *shrug* how that happened... but it starts right up now Thanks for all your help
SpYd3r05 is offline   Reply With Quote


Old May 5th, 2010, 12:24 PM   #20
kkim
 
Join Date: Nov 2008

Posts: Too much.
Way to go, Matt!
kkim is offline   Reply With Quote


Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Cold Weather Fuel Injection Issue akima 2008 - 2012 Ninja 250R Tech Talk 38 October 23rd, 2012 04:39 AM
Can you start when it's cold? blink General Motorcycling Discussion 18 April 14th, 2012 01:01 PM
Cold Start Concerns hoodadooda 2008 - 2012 Ninja 250R Tech Talk 7 September 11th, 2011 09:50 PM
Help with cold start (without choke) d16soda 1986 - 2007 Ninja 250R Tech Talk 4 August 31st, 2011 01:17 PM
Re shimmed...worse cold start? M-Oorb 2008 - 2012 Ninja 250R Tech Talk 67 August 1st, 2009 04:56 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 04:59 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.