ninjette.org

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

Notices

Reply
 
Thread Tools
Old April 30th, 2013, 02:08 PM   #1
agentbad
ninjette.org sage
 
agentbad's Avatar
 
Name: bob
Location: Earf
Join Date: Apr 2013

Motorcycle(s): 2005 Ninja 250, 2006 SV650N

Posts: 642
Idle/Start issues with 2005 Ninja 250

I just picked up a used 2005 Ninja 250 a week ago and now having some starting issues with it. It has 5800 miles on it and other from a few scratches here and there it seems to be in good shape. To get it started I often have to turn the idle up a bit and after 30 seconds to a minute it will get warmed up and I can turn the idle back down and all is right with the world. If I give it any throttle or choke before it will die. If I give it little throttle after maybe 30 seconds it will bog down a bit but usually keep going. The previous owner said he just had the carbs cleaned recently so what else could it be?
agentbad is offline   Reply With Quote




Old April 30th, 2013, 02:11 PM   #2
csmith12
The Corner Whisperer
 
csmith12's Avatar
 
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
Welcome Bob, seems like cleaning the cabs (idle jets) is in order, take the prev owner at face value? Maybe, maybe not.
csmith12 is offline   Reply With Quote


Old April 30th, 2013, 02:28 PM   #3
cataphysic
ninjette.org member
 
Name: Chris
Location: Bremerton Wa
Join Date: Apr 2013

Motorcycle(s): 2006 Kawasaki Ninja 250R

Posts: 18
Well it does sound Carb related to me. High float level maybe. Something causing it to drip fuel while its just sitting overnight and flooding it. If you cant choke it until it clears out, it needs the extra air to lean out the mixture. Thats what it sounds like to me anyway. Did the previous owner clean the carbs himself or did he have a repair facility do it?
cataphysic is offline   Reply With Quote


Old April 30th, 2013, 02:59 PM   #4
agentbad
ninjette.org sage
 
agentbad's Avatar
 
Name: bob
Location: Earf
Join Date: Apr 2013

Motorcycle(s): 2005 Ninja 250, 2006 SV650N

Posts: 642
Quote:
Originally Posted by csmith12 View Post
Welcome Bob, seems like cleaning the cabs (idle jets) is in order, take the prev owner at face value? Maybe, maybe not.
Howdy, he said a buddy cleaned them that works on bikes and has shop but who knows. I put some seafoam in the gas tank to see if that would help a bit. I know it will probably need a valve check/adjustment coming up here soon but I'd like to ride it a little bit before spending more money on it.
agentbad is offline   Reply With Quote


Old April 30th, 2013, 03:49 PM   #5
cataphysic
ninjette.org member
 
Name: Chris
Location: Bremerton Wa
Join Date: Apr 2013

Motorcycle(s): 2006 Kawasaki Ninja 250R

Posts: 18
Well, I can definitely understand wanting some ride time before having to put some more dollars in it. Going through some issues with mine as well and can relate. Not likely its a valve gap issue. Especially if it runs fine after its been running for a minute or two. Still think its a fuel thing. Out of curiosity, have you tried starting it with the throttle held open half way or so instead of adjusting the idle screw? Just until it starts then let off. I know theres a recall for fuel tanks leaking, but I think thats externally and doesnt affect starting or idle. When riding, do you notice any surging, stumbling or mis-firing?
cataphysic is offline   Reply With Quote


Old April 30th, 2013, 03:57 PM   #6
alex.s
wat
 
alex.s's Avatar
 
Name: wat
Location: tustin/long beach
Join Date: Sep 2009

Motorcycle(s): wat

Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
your enricher (choke) jet is clogged.
__________________________________________________
alex.s is offline   Reply With Quote


Old April 30th, 2013, 04:37 PM   #7
agentbad
ninjette.org sage
 
agentbad's Avatar
 
Name: bob
Location: Earf
Join Date: Apr 2013

Motorcycle(s): 2005 Ninja 250, 2006 SV650N

Posts: 642
Quote:
Originally Posted by cataphysic View Post
Well, I can definitely understand wanting some ride time before having to put some more dollars in it. Going through some issues with mine as well and can relate. Not likely its a valve gap issue. Especially if it runs fine after its been running for a minute or two. Still think its a fuel thing. Out of curiosity, have you tried starting it with the throttle held open half way or so instead of adjusting the idle screw? Just until it starts then let off. I know theres a recall for fuel tanks leaking, but I think thats externally and doesnt affect starting or idle. When riding, do you notice any surging, stumbling or mis-firing?
I have tried starting with the throttle half open and it won't turn over but as soon as I turn the idle knob up a bit it will fire up and then needs to sit for little bit. When the idle gets high and I turn it back down and it's usually ready to go. I haven't messed with the air screw or fuel screw.

Quote:
Originally Posted by alex.s View Post
your enricher (choke) jet is clogged.
This an easy fix or a tough one? I haven't done much maintenance on bikes so I may just take it to the local shop up the street. Would they fix the jets if I just got routine carb clean and sync?


Update: My buddy has offered to help me clean the carbs so I will give that a go and report back. Thank you for the suggestions.

Last futzed with by agentbad; May 1st, 2013 at 01:24 PM.
agentbad is offline   Reply With Quote


Old May 6th, 2013, 08:10 PM   #8
inkyben
ninjette.org member
 
Name: Ben
Location: st.pete florida
Join Date: May 2013

Motorcycle(s): 2005 ninja 250, 2008 zx10, 2003 r6, 2008 187cc drag bike.

Posts: 26
Blog Entries: 2
I'm sure it's carb related but it wouldn't hurt to check your vacuum line and fuel line before taking the carbs off. Cracked or loose vacuum line can give a nasty running condition on these little carbs. With the tank off and a few extra bucks you should throw in some NGK spark plugs.
inkyben is offline   Reply With Quote


Old May 7th, 2013, 05:15 AM   #9
agentbad
ninjette.org sage
 
agentbad's Avatar
 
Name: bob
Location: Earf
Join Date: Apr 2013

Motorcycle(s): 2005 Ninja 250, 2006 SV650N

Posts: 642
I actually just ordered some NGK spark plugs but now the bike won't even start. It will idle really rough and high for a second go down to about 500-1000rpm's and then sputter out. I ran some seafoam through it but I think it just lossened up more gung and clogged it worse. It has a fresh battery but I am going to try to jump it just to see what happens. Also noticed a bit of gas from messing with the idle knob too much.
agentbad is offline   Reply With Quote


Old May 7th, 2013, 06:01 AM   #10
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
Personally, I would pull the carbs and clean them yourself. I seldom trust other folks when it comes to my toys unless I truly know their work skills. Like the previous people mentioned, it's carb related and sounds like the jets are still clogged. Some people think spraying carb cleaner on the carbs is cleaning it which isn't. You'll have to remove the jets, and clean the tiny orifices with some copper wire to scrape off all the crud.

There are many tutorials here that will go over the cleaning process and carb removal.
__________________________________________________
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 May 7th, 2013, 10:22 AM   #11
agentbad
ninjette.org sage
 
agentbad's Avatar
 
Name: bob
Location: Earf
Join Date: Apr 2013

Motorcycle(s): 2005 Ninja 250, 2006 SV650N

Posts: 642
I think I am going to give this go with help from a buddy. Can I use a E string from a guitar in place of the copper wire for the jets? I think I will start with the pine sol soak and work from there.
agentbad is offline   Reply With Quote


Old May 7th, 2013, 12:53 PM   #12
choneofakind
ninjette.org certified postwhore
 
Name: .
Location: .
Join Date: Feb 2011

Motorcycle(s): .

Posts: Too much.
MOTM - Feb '13, Feb '14
Scraping stuff inside jets makes me nervous. soak them in cleaner and use compressed to blast everything out if possible.
choneofakind is offline   Reply With Quote


Old May 7th, 2013, 01:13 PM   #13
quicklooker
ninjette.org member
 
Name: J
Location: Dallas
Join Date: Aug 2012

Motorcycle(s): Ninja 250R '07

Posts: 81
Quote:
Originally Posted by agentbad View Post
I think I am going to give this go with help from a buddy. Can I use a E string from a guitar in place of the copper wire for the jets? I think I will start with the pine sol soak and work from there.
It must be copper or you risk scrapping metal outta the jets and then you'd have an even bigger problem.

Source: 250WIKI
quicklooker is offline   Reply With Quote


Old August 24th, 2013, 03:43 PM   #14
agentbad
ninjette.org sage
 
agentbad's Avatar
 
Name: bob
Location: Earf
Join Date: Apr 2013

Motorcycle(s): 2005 Ninja 250, 2006 SV650N

Posts: 642
Carbs were clogged as hell and rejetted and things seem to be working way better now. Thanks everyone for advice.
agentbad is offline   Reply With Quote


Old August 24th, 2013, 05:51 PM   #15
csmith12
The Corner Whisperer
 
csmith12's Avatar
 
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
csmith12 is offline   Reply With Quote


Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Idle issues - Idle is different every time I start up. 106 1986 - 2007 Ninja 250R Tech Talk 6 November 13th, 2014 04:57 PM
my kawasaki ninja 250 2005 won't start Yehia 1986 - 2007 Ninja 250R Tech Talk 15 August 5th, 2014 08:37 AM
idle issues jgcable 1986 - 2007 Ninja 250R Tech Talk 9 July 30th, 2014 03:13 PM
2002 Ninja 250 - issues (spark pugs, dirty carbs, won't idle, etc?) Pocket Sprocket 1986 - 2007 Ninja 250R Tech Talk 12 May 17th, 2013 11:13 AM
Idle issues Gyrene 1986 - 2007 Ninja 250R Tech Talk 15 May 4th, 2010 11:43 AM


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 05:31 PM.


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.