June 11th, 2018, 01:40 PM | #1 |
ninjette.org member
Name: Craig
Location: Port huron
Join Date: May 2018 Motorcycle(s): 250 ninja Posts: 19
|
2005, chasing idle
Bought a 2005 and didn’t want to idle below about 3000. Cleaned the tank, fuel lines, checked fuel from peacock. Pulled carbs removed low speed jets. Got them spraying gas both straight thru and all the vents. Soaked bodies in ultrasonic cleaner (20 min with heat). Blew out the passages from the front, flowers cabcleaner great. Set flat level, checked needle valve. Everything is prime clean. Put new pure gas ( E0). Starts easy, runs great. Used the big knob under carbs to set idle. Idleing great (set to 1500 because my son is brand new to m/c clutches. Bike runs great, idles great for about 3 days. Suddly stalls every time you close the throttle. Reset idle using big knob to bring it back up to about 1500. Bike runs great. Slow fast, just the way you want it. So I take it out today, 20 min into ride, idle suddenly at 4000! So I stop a shopping center, use big knob to bring idle back down, and bike is running and idleing just fine
What the F? My Son points out that there maybe a reason that they have that big knob to set idle, every other bike we have had (I’ve had and worked on lots!) an idle stop that you had to use a screwdriver to adjust. So, is it common for thesebikes to have to reset the idle all the time? If not, any idea why we are having all this trouble? I have checked fo air leaks in the carb boots ( the old fashion way... sprayed a littlestarting fluid under the boots then at the boots, no change in engine speed so no air leaks. I have checked the cables no change in speed if I turn the bars and I can shake the cables and nothing happens. Any suggestions? |
|
June 11th, 2018, 02:06 PM | #2 |
ninjette.org certified postwhore
Name: Roger
Location: Mitchell, South Dakota
Join Date: Apr 2014 Motorcycle(s): 1978 Z1R, 1999 EX250 Posts: A lot.
MOTY - 2018, MOTM - Oct '16
|
I'd check the screws that hold the adjustment cable to the carbs to be sure they are tight, and the threads on the right carb that the adjustment cable threads into. If not those I'd make sure the bracket with the idle stop is tight on the butterfly shaft, then, that the butterfly screws (butterfly to shaft) are tight. If it's none of those I'd look for an exorcist.
__________________________________________________
|
|
June 11th, 2018, 02:17 PM | #3 |
Guy Who Enjoys Riding
Name: Jim
Location: North Carolina
Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
|
If your valve clearances have gotten too small, this can happen. It's not definitely the cause, but it's what made mine act that way.
|
1 out of 1 members found this post helpful. |
June 11th, 2018, 02:53 PM | #4 |
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
|
Partially obstructed idle mixture passages possibly?
Sticky slides? |
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Bike not idling below half choke, idle screw not affecting idle speed | Zaraki_Kenpachi | 1986 - 2007 Ninja 250R Tech Talk | 2 | March 6th, 2020 11:13 AM |
2005 Ninja 250Ex Rev/Idle problem. | Spencerrides | 1986 - 2007 Ninja 250R Tech Talk | 119 | July 1st, 2016 08:42 PM |
2005 Ninja 250 won't do anything but idle | Babyninja808 | 1986 - 2007 Ninja 250R Tech Talk | 16 | August 22nd, 2015 07:14 PM |
Idle/Start issues with 2005 Ninja 250 | agentbad | 1986 - 2007 Ninja 250R Tech Talk | 14 | August 24th, 2013 05:51 PM |
Idle jumps to 9000 rpm on choke then wont stay idle after off | Shawn250 | 2008 - 2012 Ninja 250R Tech Talk | 1 | June 19th, 2012 06:45 AM |
|
|