Question about 2008 KTM 200 EXC

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2006 250 xcw sputtering at high revs

I'm the second owner since last year and I've had this problem since I got it .I've tried different main jets and I took it to our local ktm dealer three times and got no results.If anyone has any ideas I'd appreciate it Thanks Rob

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Hi and welcome to FixYa,

Offhand, it appears that you have an air leak (not a vacuum leak). This could be caused by:

  • loose, detached rubber coupling from the airbox to the air intake;
  • torn, defective, loose air filter/cleaner;
  • improperly sealed cover of the airbox;
  • air filter was replaced with an aftermarket such as K&N and no rejetting, air/fuel mix adjustment and exhaust tuning done.
There are instances when the electrical has an issue and it affects the electronics, specifically the CDI at higher RPMs.

Would appreciate an update based on the above. Good luck and thank you for using FixYa.

Posted on Feb 23, 2009

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