Question about 2008 KTM 105 XC

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I Have a 2004 KTM 105 dirt bike that ran fine when last time I rode it 3 mts ago. When trying to crake it I could not get no fire. I checked the spark plug wire for fire it was not getting any fire when i tryed to crank it .I checked the kill swicth and the cdi it was not those.

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If it wasn't either of those then replace your coil that is only thing other than timing

Posted on Jan 14, 2009

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sounds like you may have over adjusted the decompressor, back it off to where it was, this would make it backfire.
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I have a 2004 ktm smc.my probem id i kicked it over, it started and after about 4 seconds it died and it sounded like bearings grinding when it died i started it back up it sounded fine thean it made the...


The grinding noise could be many things none good.
Has the bike enough oil & is it being pumped round OK (does the radiator heat up?)
If there was no grinding noise on the way home it could well have been the kick-start mechanism; as the footpeg fouled the kick-start, its mechanism didn't pivot far enough round to disengage from the ratchet. So the noise you heard was the mechanism returning but still in contact with the ratchet. This is the most likely answer.

When you adjust the decompression valve it actually depresses an engine inlet valve. You may well have adjusted it too far leaving the inlet valve slightly open as it fires, giving you back-firing in the inlet tract

Ride safe
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Please mark this as very helpful (if it has been!!)
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If it gets hot quick, could have a problem with the cooling system, blocked radiator,leaks?
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