Question about 2003 KTM SX 250

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2003 KTM 250 SX won't start. When you kick it, it starts to fire but never turns over. I accidently put the wrong gas in it. It takes 60:1 but I didn't put enough oil in it. It died while I was riding it. I drained the gas and put new in it. Changed the spark plug. Any ideas on how to get it to run?

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  • Marvin
    Marvin Jun 03, 2010

    this needs a dealer to fix it.

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Hi iv got a ktm 250 03 went out on it yestrerday was fine next moring startd it up was fine left it for few hours now it want start at all even tryd to bump it nothink. not even tryin to kick over..checkd the spark plug its abit black if you no what i mean but there is still a little spark there but still no good in startin bike..what if its flooded.plzz help new to all this thanks

Posted on May 13, 2012

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Hi
If you have run the engine with too little oil then there is probably damage to the piston / rings & / or bore
Remove the exhaust to have a look

Ride Safe
Bike-Doc

Posted on Jun 04, 2010

  • Steve Johnson Jan 14, 2012

    A 03 KTM 250SX should not run with anything less that 50:1 oil mixture. I run 32:1 in my 02 250SX. In my opinion you should always be a little rich than lean. You may have burned up your piston.

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Posted on Jan 02, 2017

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