Question about 2002 kawasaki KMX 125

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Kawasaki kmx 125 2002 wont start

I bought my first geared bike the other day and i rode it around my estate and went down a gear too fast and the engine started howling and then cut out, it wouldnt start after this and still hasnt for the past two days. i took the spark plug out, cleaned it and left it out for a while to get the fumes out of the cylinder. when i put it back in it still wouldnt start. when i got home i took the fuel pipe going from the tank to the carb, out of the carb and turned the petrol tap on but no petrol came out. so i emptied the tank and cleaned out the tap and realised it had sand blocking it. i unblocked it and dried it out. then put it back together. i then turned the tap on and the petrol started running through and into the carb and out the overflow pipe. its only had a new piston in it quite recently so maybe i snapped the ringwhen going down the gears ? but as i looked at the bike again today i tried starting it and it ticked over for about two seconds then cut out . i realised petrol dripping from near the manifold, and saw that where the exhaust connected it had gaps in between the two bolts. could this cause a loss of compression? hence the bike not starting? or could anything else be wrong. thankyou.

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  • DANIEL1924 Feb 19, 2009

    MY KMX 125 HAZ NO SPARK WHEN IT DOES ITS A WEAK YELLOW SPARK

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To me I want to know how old that gas is. If it smells like old paint or stale at all you need to rid the complete system. Then you need to take your carb. off and take it apart and clean it and all the jets, since you said there was sand in the gas tank.

Posted on Jan 05, 2009

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Kawazaki kdx 125 wont start


KICK HARDER TRY PULL STARTING IT..IN SECOND GEAR..DOES IT HAVE ENOUGH COMPRESSION TO START?IT SHOULD START PULLING IT...START OFF WITH NO THROTTLE THAN IF NOT STARTING CRACK THE THROTTLE SO LIGHTLY AND SHE SHOULD FIRE OFF WHILE IN GEAR BEING PULLED OF COURSE BE CARE FUL NOT TO RUN INTO. WHO EVERS PULLING YOU..USE A LONG TOW ROPE..IF YOUR NOT A SEASONDED RIDER AND KNOW YOUR BIKE VERY WELL I WOULD NOT ATTEMPT THE PULL START...IF NOT CHECK YOUR COMPRESSION AND TIMING..MAJOR VACUUM LEAK MAYBE AT BASE GASKET..IS ENGINE SUCKING TO MUCH AIR? GOOD LUCK..

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I'm not familiar with this particular model but let's see what we can do.

If the bike lurches forward when you put it into gear, you clutch is either not releasing for some reason or the clutch plates are stuck. In the case of the stuck clutch, you'll need to disassemble and free up the clutch pack.

Since I can't find much on your particular model, it appears to have lights on it. If this is the case, it may have a kickstand position switch. If the kickstand is down and you put it into gear, the engine is shut off. This is a safety feature on some bikes. Try raising the kick stand prior to putting the bike into gear.

Good Luck!!

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