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Old 07-05-2008, 02:00 PM   #1
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Need help getting 07 Ninja 250 w/ 630 miles on it to idle w/o choke...

Went out and tried to start my wife's bike last night. Started it w/ choke like normal then after a little bit, took the choke off and it died. It wouldn't restart at all unless the choke was on. It was late so I decided to wait until today to mess with it.

Went and tried again today and it just will NOT idle without the choke on (at least 1/2 choke too). Before today, we'd just start it with choke, turn the choke off about 3 min later and it'd idle on it's own after that. I've been messing with it for over and hour with no luck.

WTF is going on? Like I said, the bike has 630 miles on it, the filter is clean, the fuel is good (almost full tank too), etc. When I go to start it without the choke, it will just crank and crank whether I give it any throttle or not. Giving it throttle doesn't make the " cranking noise" change at all (not sure if it should, just comparing to my YZ80 which sounds diff when I kick it over with throttle turned vs not turned).

Can anyone help out. I don't know about carbs and really don't feel like pulling it off and farting with it considering again how new the bike is.

The bike does have extended warranty on it. Should we just take it to the dealer and let them figure it out? I HATE having others work on my stuff b/c they can claim the fault is all sorts of things that it might not really be and try to charge me for it.

Any and all help is appreciated.
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Old 07-05-2008, 02:01 PM   #2
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have you checked your Idle screw?
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Old 07-05-2008, 02:03 PM   #3
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adjust the idle
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Old 07-05-2008, 02:03 PM   #4
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Old 07-05-2008, 02:45 PM   #5
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I've messed with the idle screw plenty, from putting it all the way out (not touching) to all the way in (pushing the butterfly as much as it can). Neither does any good.

Also, when I go to give it throttle, it "dips" for a bit (hesitates) then picks up and revs up. Come to think of it, it's pretty much done that since we picked it up. It's always had a "hesitation" off of idle when trying to rev. Is that normal for this small carb'd motor or is it something else?

Anyone know if Motorcycles Unlimited is a factory approved location for my warranty (Kawi warranty)? I'd prefer to take it there over some place where I know nothing about their people.
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Old 07-05-2008, 02:52 PM   #6
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how long has it sat since last being run?
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Old 07-05-2008, 02:53 PM   #7
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Does it have clean gas in it? Could of gotten bad gas.
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Old 07-05-2008, 02:53 PM   #8
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that is normal. does it idle once the bike warms up? if ur trying this cold thats just ur typical carbed motorcycle. try letting it warm up. ride around with the choke on then take it off choke and come home. put it on the kickstand and see if it will idle play with the idle while it is warmed up.
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Old 07-05-2008, 02:55 PM   #9
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I would consider the gas. The new E85 gunks up really fast now and it may or may not need the carbs cleaned because of it sitting.
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Old 07-05-2008, 02:58 PM   #10
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May have some bad/ethanol gas. I've heard a couple people having issues with deposits gumming up the jets, and yours sounds like the idle jets may be crapped up.

How much gas is in the tank and is it cheap regular?
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Old 07-05-2008, 02:59 PM   #11
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Sorry went back and reread about the full tank.

Go pickup a can of Seafoam, dump in the tank (full can) then go ride it around and see if it will clear up.
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Old 07-05-2008, 03:14 PM   #12
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It's sat for about a month since last being started. It ran fine on the same fuel in the tank back then.

I've done all the messing around that I've done with the bike warm. I let it idle (with choke) in the driveway for quite a while and the temp gauge was over halfway between C and H.

I also did the whole "choke to start, ride away and turn choke off and keep riding. All that did was lead to the bike dying at every stop and I had to choke it to get it to start back up to keep going. The bike will not even "try" to fire without the choke, again, whether I use the throttle or not.

Considering how much fuel is in the tank, how long would it take for a can of 'seafoam' to run through it? WTH can I get 'seafoam'? I've heard about it before but never seen it at the parts stores (of course, never looked specifically for it but I've been to those stores plenty with my car stuff).

I'm going to be if the carbs are gunked up after 600 miles on this thing and I have to pull the bike apart. POS.
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Old 07-05-2008, 03:17 PM   #13
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Also, how much does a "battery tender" run for motorcycles? I don't suppose I can use the one I have for my car on low 2a setting, now? I've just about killed the battery with the constant restarting of this thing while trying to figure out the problem.
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Old 07-05-2008, 03:18 PM   #14
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Quote:
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Also, how much does a "battery tender" run for motorcycles? I don't suppose I can use the one I have for my car on low 2a setting, now? I've just about killed the battery with the constant restarting of this thing while trying to figure out the problem.
I have one you can borrow for as long as you need.
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Old 07-05-2008, 03:18 PM   #15
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well sorry then i would have to be there to help. and i aint drivin that far right now.
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Old 07-05-2008, 03:20 PM   #16
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Quote:
Originally Posted by Blue91 View Post
It's sat for about a month since last being started. It ran fine on the same fuel in the tank back then.

I've done all the messing around that I've done with the bike warm. I let it idle (with choke) in the driveway for quite a while and the temp gauge was over halfway between C and H.

I also did the whole "choke to start, ride away and turn choke off and keep riding. All that did was lead to the bike dying at every stop and I had to choke it to get it to start back up to keep going. The bike will not even "try" to fire without the choke, again, whether I use the throttle or not.

Considering how much fuel is in the tank, how long would it take for a can of 'seafoam' to run through it? WTH can I get 'seafoam'? I've heard about it before but never seen it at the parts stores (of course, never looked specifically for it but I've been to those stores plenty with my car stuff).

I'm going to be if the carbs are gunked up after 600 miles on this thing and I have to pull the bike apart. POS.
Seafoam can be found at walmart and so on. Also, Motorcycles Unlimited has some too.
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Old 07-05-2008, 03:20 PM   #17
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Quote:
Originally Posted by Blue91 View Post
It's sat for about a month since last being started. It ran fine on the same fuel in the tank back then.

I've done all the messing around that I've done with the bike warm. I let it idle (with choke) in the driveway for quite a while and the temp gauge was over halfway between C and H.

I also did the whole "choke to start, ride away and turn choke off and keep riding. All that did was lead to the bike dying at every stop and I had to choke it to get it to start back up to keep going. The bike will not even "try" to fire without the choke, again, whether I use the throttle or not.

Considering how much fuel is in the tank, how long would it take for a can of 'seafoam' to run through it? WTH can I get 'seafoam'? I've heard about it before but never seen it at the parts stores (of course, never looked specifically for it but I've been to those stores plenty with my car stuff).

I'm going to be if the carbs are gunked up after 600 miles on this thing and I have to pull the bike apart. POS.

I had the same issue with my wifes 250 after it sat only 2 weeks. Took off the carbs and cleaned the jets and it ran fine. The new gas is mang.
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Old 07-05-2008, 03:21 PM   #18
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Blue.... The carbs gunking up have nothing to do with mileage. You should pull the carb or carbs off and check the jets make sure everything is clean. Why would you have to adjust anything on the carbs. if it ran fine before ? I say carb. needs to be cleaned
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Old 07-05-2008, 03:23 PM   #19
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http://www.sportbikes.net/forums/hel...hoke-open.html

Looks like I need to try the seafoam and I need to ride the out of it for a while to get some of the gas through it. Joy. I don't have much time to do that and the weather is crappy.

Brad, if you want to watch UFC with us tonight, let me know. I'll give you directions.
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Old 07-05-2008, 03:23 PM   #20
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It's dead. Sell it to me cheap and I will dispose of it properly
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