September 8th, 2011, 06:03 PM | #1 |
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Choke has no effect on idle... Help.
I have a 2006 250 that I bought used about 2 months ago. It starts up perfect every time and has a perfect idle at 1400 rpms once it gets warmed up. But here is the problem. It just now dropped into the high 50's at night. So early morning when I start up the bike it doesn't fire up on the first couple of attempts. I try to add the choke but that has no effect at all on the rpms. I checked the cable and it is working properly. It does start but only after I hit the starter button more than 3 times. SO what should I check for next? Also the bike has NO problems once it gets warmed up. Runs perfectly. I have tried Googleing it, but found no results. Anyone else ever had this problem?
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September 8th, 2011, 06:06 PM | #2 |
ninjette.org guru
Name: Mike
Location: Vancouver, British Columbia
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My first question has to be: does the choke do anything once your bike is on/warm? If the rpm's don't raise when the choke is on (when the bike is warm), you sir have yourself a problem.
If the choke does do something, then just put it full choke (push it all the way damnnnnit), push the starter and give it a bit of throttle at the same time. It should start up fine. |
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September 8th, 2011, 06:06 PM | #3 |
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How are you starting it? I use the half choke method at the bottom of this page:
http://faq.ninja250.org/wiki/What_is..._at_startup%3F I never have any problems with my idle not jacking up with choke on. |
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September 8th, 2011, 06:08 PM | #4 |
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full choke isn't necessary...
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September 8th, 2011, 06:11 PM | #5 | |
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Quote:
And the weather is warming back up a bit so it started up fine this morning. I am just worried I will be running into a problem this fall/winter. |
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September 8th, 2011, 06:14 PM | #6 |
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try opening up the carbs and cleaning everything. if nothing else is not working outside the carbs (ie the cables and such) that seems like the next logical step that isn't expensive
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September 8th, 2011, 06:17 PM | #7 | |
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Quote:
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September 8th, 2011, 06:18 PM | #8 |
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so are you having trouble starting it cold without the choke?? that's not surprising.
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September 8th, 2011, 06:21 PM | #9 |
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I plan on cleaning and syncing the carbs when I do my valve adjustment. Which needs to be done soon. Haven't had time yet. I checked the choke cable and it works just fine. It slides the "bar thingy" over like it should but it just doesn't effect the idle. It's weird!
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September 8th, 2011, 06:21 PM | #10 |
ninjette.org guru
Name: Mike
Location: Vancouver, British Columbia
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If your choke does nothing to the RPM's then the cable might not be working properly. Pull off your fairings and tank and look at the carbs. Check if linkage is correct. I'm not 100 percent sure about the 2006, but it should be similar. If it is, it should be screwed onto the carb above the head and it should move properly when the choke is engaged. If that is all connected properly, I would first run some carb cleaner through (SEAFOAM), and if that doesn't work, pull them out and clean them.
As for starting with full choke, yea, you really don't need to/shouldn't. However, I have found that if I'm having a problem starting (either with the gradual method or just at half), I just crank it up and hit the start button (possibly giving it a bit of throttle), and she starts up perfectly and I immediately turn the choke down. |
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September 8th, 2011, 06:26 PM | #11 | |
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the valve adjustment will help a lot with starting. While you've got everything open to do the adjustment, cleaning the carbs could never hurt. Try adding seafoam. That's also never going to hurt in this situation |
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September 8th, 2011, 06:27 PM | #12 |
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If I add choke it doesn't do anything. It has only been cold a couple mornings so I haven't gotten many chances to practice my cold starting. But if the choke doesn't work I am worried about it starting when it gets colder than 50 degrees.
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September 8th, 2011, 06:31 PM | #13 |
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Alright thanks for the advice. I will first start by getting Seafoam and trying that. If that doesn't do the trick I will yank the carbs out and clean them when I do the valve adjustment.
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September 8th, 2011, 07:29 PM | #14 | |
ninjette.org guru
Name: Mike
Location: Vancouver, British Columbia
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Quote:
That's right . IMHO (i could easily be wrong), but it might just give it that extra tad of richness that the bike needs to start. In my experience it's hard to judge exactly with the choke where you are for a lot of people (full/half/none) so if you just turn it up, then use a little throttle, you hit the sweet spot. Just my 2 cents. Anyways, sorry for jacking this thread @Jono, but since the mechanism works properly, something in the carbs must not be working or it could clogged. Like previously stated use the sea foam and if it doesn't work yank them and clean everything. Goodluck |
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September 11th, 2011, 11:46 AM | #15 |
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when you clean them, check these pics out. there's also a good how-to for cleaning the carbs thoroughly.
my advice is use an air compressor instead of copper wire. never seems like a good idea to me to jam metal into the jets http://faq.ninja250.org/wiki/Carburetor_photos |
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September 14th, 2011, 09:45 PM | #16 |
ninjette.org certified postwhore
Name: Jono
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Alright thanks. I will definitely be using those photos to help with the cleaning process. I ran Berryman B12 through a tank of gas but it didn't help with the choke issue. So I am going to have to yank out the carbs when I do my valve adjustment. Oh well, just one of the benefits of buying a used bike. Haha
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