Question about kawasaki KX 250 Motorcycles

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Engine problems on a kx 250 2 stroke

Smoke coming out the exhuast.theres also oil spitting out the exhuast at high rpm the smoke is white and fluffy and ive changed head gasket block gasket

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On a 2 stroke bike cause of smoke is due to excess oil in the fuel oil mixture, incomplete combustion in the cylinder or the engine oil finding it way in through the piston rings into the firing chamber. Check the oil levels and clean the plugs, which must be black in color by now, so replace if possible and if engine oil is low, the change the piston rings. Also look up the carburetor jets/nozzles are clean and the engine gets the correct fuel/air mixture by adjusting both fuel and air jets(turns)...sodeep

Posted on Jun 30, 2009

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Posted on Jan 02, 2017

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I have honda accord 1993 SE.White smoke out of exhuast while i accelerate hard around 4 to 6 rpm.can any1 help me out.


White smoke is usually burnt water.
Check your radiator water level, if it is down, check for a blown head casket in your engine e.g.(water in the engine oil, or oil in the radiator water) brown froth on filler caps.

Dec 31, 2012 | 1993 Honda Accord

1 Answer

2006 Kawasaki KX 250 pops at high RPM?


Hi, Bill if your carburetor or exhaust is:
COUGHING is usually caused by an air leak in the intake system and will generally have the same telltale signs, a wet or damp build up of oil/gas seepage at the intake manifold to cylinder head or carburetor to intake manifold connection and in rare instances a worn throttle plate shaft and or seals.
POPPING on deceleration is usually caused by a lean fuel condition or an air leak in the exhaust system and is generally located where black carbon soot is seen as a flashing build up from any joint connection. This condition can easily be remedied by removing and cleaning both joint pieces and reassembling with high temp silicone and torquing the exhaust clamp to the proper spec.
SPITTING is usually caused by a faulty accelerator pump and or nozzle, or the float bowl needle and seat leaking and overflowing through the main jet mixing well nozzle, or the air-fuel mixture screw is adjusted too lean.
BACKFIRING is usually caused by a sticky/tight intake valve or a timing issue, 180 degrees out or cam chain off 1or 2 teeth.
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.
KX 250 high rpm bog
High RPM sputtering bogging problem
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2005 Kawasaki KX250 Owner Manual

Jul 27, 2012 | 2006 kawasaki KX 250

1 Answer

Black smoke in the exhaust and in high rpm white on passat 1.9tdi


this case , you have to check turbo charger , when high RPM white smoke means lubricate oil goes to engine so give white smoke . on low rpm trubo close coming black smoke means no enough air gose to engine so this need to replace turbo . some type of turbo can be clean the wase gate ( which open with diafam beside turbo) make sure it's moving when accilerate. check vacum is ok . then clean wase gate > only some type have wings inside )if no replace turbo

Jul 30, 2011 | Volkswagen Passat Cars & Trucks

1 Answer

I have a kx 250 2004 and i can ride it for about 10 min and the engine seizes up on me what could be the problem?


im presuming its a two stroke it sounds like the two stroke oil pump-which is starving the engine of oil-change the pump before u destroy the engine-this is not a maybee,your engine will need a total rebuild if u carry on riding with this problem!!!!!!!!!!!!!

Aug 10, 2010 | 2004 kawasaki KX 250

1 Answer

Excesive oil coming out exhuast


This is normal for a 2 stroke and not a problem at all. It's just a build up of 2 stroke oil that acumulates i the the packing in the muffler.
Nothing to worry about, and no solution to fix it really. You can re pack your muffler with clean packing, and try running a little less 2 stroke oil in your mix. I would recomend using a synthetic 2 stroke oil, with a mixture of 50:1 this would prevent some of the mess from happening.

Jul 11, 2010 | 2002 KTM EXC 200

1 Answer

Suzuki rm 250 2 stroke is leaking oil from the exhuast,is it a problem with the engine or am i mixing the fuel too rich


The standard mix is 4 ounces of two stroke engine oil to one gallon of gas. Do not use standard motor oil. Only use two stroke engine oil.

May 16, 2010 | 2003 Suzuki RM 250

1 Answer

I have a 2003 yahama viper er. i rode yesterday rode goood. now today it wouldnt turn motor? finally got motor unstuck and started it sounded really bad and white smoke was coming out of the exhuast. shut...


Your discription sounds like the engine has a seized piston or two or three. Pull the head and look and feel inside each cylinder. The cylinder walls should be super smooth and have no scratches. If a wall is scored up then a seizure has happened. Seizures are due to excessive heat. A lack of two stroke engine oil in the gas is possible as well as a bad water pump. NGK BR9ES is the stock spark plug.

Feb 25, 2010 | 2003 Yamaha YZ 250

6 Answers

86 kawasaki kx250 rich mix problem


"Learn to like smoke for awhile. Smell the aroma". Pardon the humor. I couldn't resist. Chances are there is oil built up in the crankcase. It is going to take some time for the oil to dissipate. How long? I don't know. It all depends on how much is in there. Cleaning the muffler is no help since the oil burning is coming from the crank not the muffler. If you are careful, and keep a vigilant eye, you could cut the gas/oil mix in half to 64 to 1 instead of the normal 32 to 1. That would mean only 2 ounces of oil per gallon instead of the normal 4 ounces. Let the crank add the rest. This will help burn the crank oil excess, but BE CAREFUL. When the crank drys up you had best not ride until more oil is added to the gas.

A “very helpful” rating for this answer? Thanks!

Jun 15, 2009 | 2003 kawasaki KX 250

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