Question about 2002 KTM EXC 380

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No power band

Recently i have had to take the engine out of my ktm 125cc exc 2001 (as told by my local dealer) because my gear return spring snapped ever since it has been back in the bike i have had no power band. it gets to certain revs and then it bogs down. i have tryed the carb and it is all in order and has been cleaned does any1 know wat it myt be. i was thinkin timing

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  • jamie_rose_8 Dec 08, 2008


  • jamie_rose_8 Dec 08, 2008

    all the pipes are ok and the spark plug ok how do you check the timing?


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Are you sure you havent just kinked a hose somwhere. Maybe the crankcase breather pipe or even the fuel tank breather pipe.

If the timing was okay before you stripped it I really would double check all the pipes.

Also if you had the engine upside down when you were working on it perhaps some oils got on the plug so preventing you getting a decent spark

Posted on Dec 08, 2008

  • andybeeee Dec 09, 2008

    To tell the truth I doubt youd be able to adjust it as most bikes nowadays have electronic ignition with everything taken care of inside the ECU, which is a digital controller and not really adjustable.

    I'm not definately certain about this specific model but I can find out later in the week for you.

    The only other thing I can think of is if it was off the road for a while the fuel may have gone off, but this would be a few months not weeks.

    Is the air filter clean as well as this can also affect it.


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The run-on, rough high RPM and noise would tend to make me think of a lean condition. How's the plug looking?

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