Question about kawasaki KX 125 Motorcycles
Why does my 2001 kx 125 leaks a lot of gas from the overflow, and when I start it revs really high like I'm giving it half throttle? @
Hi, Montyrobinso and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
8. Damaged petcock diaphragm allowing fuel to flow through the vacuum line into the combustion chamber.
9. Contaminated fuel tank.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
kx125 carb leaking out of overflow
Major problem fuel running out of carb kx 125
OEM Parts for Kawasaki
2001 Kawasaki KX125 Owner Manual
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Posted on Feb 28, 2018
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Posted on Jan 02, 2017
i would say the answer from polar cycle is good...but if it is not the case....you may take a look at crankshaft seal..sometimes the primary compression is not good if cranks seal leaks and it make the bike running lean in gaz and having you're idle getting up sometimes.........check the transmission oil if its low in quantity even after replacing it recently (this means that you're transmission oil is getting burn by you're motor) and also remove the magneto cover to see if there is gaz accumulation in that area...if so that means the seal leaks on the magneto side.....
Posted on Aug 15, 2009
Testimonial: "After finally rebuilding the carbs and replacing the reeds and air filter, the problem was actually solved by replacing the crank seal. "
SOURCE: carb problem
You have an air leak that is making the fuel mix too lean. Probably intake manifold gaskets. Other sources are reed valves chipped, deformed or broken, cylinder head gasket not fully sealing and crank seals gone bad. Your bike is 20 years old, I don't remember if your bike has reed valves.
The dealer is not going to have new parts. google " suzuki motorcycle parts " and " antique suzuki motorcycle parts "
also google " motorcycle salvage suzuki ". This should give you some sources for parts.
Please rate this solution. Thanks weldin_fool!
Posted on Apr 19, 2009
it could be the gaskets around your carb are bad and leaking air if so its thinning your gas fumes with more air then what is needed inside your combustion chamber witch is causing your engine to stop running like that. best of luck
Posted on Apr 20, 2010
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
Posted on May 10, 2010
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