Question about 2003 kawasaki KX 250

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I have a 1998 Kawasaki kx 250 and there is fuel leaking from the carb it started once but it won't start again what could be the problem

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It sounds like the float,in the carb is stuck,,so not stopping fuel as it fills.....give it a tap on the bottom of the carb if no joy take off and clean,,,

Posted on May 29, 2011

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I have a 300 kawaski 4x4 atv and when i start it starts leaking fuel out of the carbuertor.


If it's the one I'm thinking of -it has a vacuum operated shutoff valve on the tank. So your leaky -read stuck- needle and seat only leak when the engine is turning over.

Pull the carb loose and roll over and remove the float bowl. drop the float pin and remove the float and needle. Find the vacuum line to the fuel valve and **** it open to flush out the needle and seat. When the fuel runs clean, put the needle and float back on and open the fuel valve again. If the upside down carbs holds back the fuel- it's fixed and you can put it back together.

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1 Answer

2001 kx 85 has sever low end hesitation. I can't tune it to save my live. won,t idle properly. when at idle if you crack the throttle it will bog and then rev up


Hello you have a
1. fuel starvation problem clogged carburetor jets.(clean the carb)
2. Intake leak carb joint/intake manifold.( start your motor get it to idle best you can spray wd40 around the carb joint if the rpms change you have a leak replace the carb joint or gasket/o-ring as needed.
3. crankshaft main seal magneto side leaking or worn main bearing.
check end play on the magneto side remove the cover plate firmly grab the end of the shaft with up an down motion if you can feel it move replace the main bearings and seals.
These are problem that will cause your motor to run lean and hesitate.
Hope this helps you with your problem

May 10, 2010 | 2003 kawasaki KX 125

1 Answer

My 2004 kx 250f often starts with one kick when cold but after that even after 1-10 minutes idling if it needs to be started again it will take 15-25 kicks..


Dont twist the throttle at all when starting the warm/hot engine. The carb has a diaphragm fuel pump that gives a shot of gas each time you crack the throttle open. It is very easy to flood the bike.

Jun 06, 2009 | 2004 kawasaki KX 250 F

1 Answer

I have a kawasaki kx 250 2 stroke an it was running good now it wont start. it has spark it wants to fire up but it just backfires.


hi murray,

nice bike you have there.

have you checked on the carb ans see if the jet is right and the mixture is normal, this is usually the case if the carb is not tuned right.

better of reset the card, open it clean it, then set to default even if you are using your mixture of gas and 2t. just set to factory default. once it starts give it a few run, 1-2 hours, then set it to how you want your mixture to be.

hope this helps,

regards,

voodoo

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2 Answers

1998/99 kx 125 fuel leaking from carb outlet at bottom


sounds like the needle and seat may be the problem

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