Question about 2008 KTM 250 EXC

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I was riding my 1997 ke 100 and it stalled out and it wouldnt kick over or jump start took the topend off and everything was fine in there so what could be wrong with it?

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  • choprboz5 Jun 03, 2010

    When you say "stalled and wouldn't kick over or jump start", do you mean you "can" kick it, but it just won't start, or that it's locked up? If it locked up, you would obviously know since it would have locked the rear tire up when it stalled if you were moving. More info would be helpful.

  • mitchelljona Jun 03, 2010

    i cant kick it because it locked up i was riding and the tire locked up, if you hold the clutch in you can push it but it seems like my crank seized up

  • mitchelljona Jun 03, 2010

    the tire locked up when i was riding and it wouldnt kick over or anything i thin i screwed the crank bearing

  • mitchelljona Jun 03, 2010

    ok i will i just had the motor apart and found out it needs a bearing on the crank i have to take it and get it split apart i think the bearing is between 18 and 60 dollars so if i get thjat i should be back on the trails before you know it, when i change the crank bearing i think im gonna change my piston and rings aswell

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Thanks for the additional info. To check if it's the tranny or crank bearings, did you try shifting through the gears? With it not running, you should be able to shift through all of the gears. If you can't, you may have blown a gear in the tranny and not the crank bearings. If the tranny is ok, then I suspect you are correct that it's the lower end and needs to be pulled apart. If you pulled the top end off, it sounds like you have some mechanical skills. Pull the intake, cylinder, etc. (Grab a $25 repair manual if you've never done it and don't want to try on your own without instruction) and you can probably get through pulling it apart and save a ton of $$ on labor. Then take the lower end in to a shop and have them replace the bearings. If you don't have a place locally that you can get a manual from, here are the ones I go to locally here in Minnesota. They ship everywhere:
www.bobscycle.com
www.denniskirk.com

Hope this helps. Good luck and let me know how it turns out. Fred-

Posted on Jun 03, 2010

Testimonial: "thank you very much i am 15 years old and want to be a mechanic and i am teaching myself as i go"

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