2006 KTM 250 SX-F Logo
Anonymous
Anonymous Posted on May 04, 2009
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On my ktm 250 two stroke enduro bike when i go to move off from a standstill in 1st gear theres a strange noise it sounds like something is slipping and i can feel it vibrate/buzz but it only happens when moving off from a standstill. the bike moves off as normal and runs perfect it doesnt do it when on the move slowly or when throttle wide open.i noticed this about 4 weeks ago and it only did it twice when out yesterday it happened about 10 times.also about 4 weeks ago i noticed my coolant kept gettin low so i replaced tha cap and this solved that problem but i dont know how long the coolant was low because i bought the bike 2nd hand and noticed the coolant was low after 2 weeks! apart from this the bike is superb!!!

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  • Anonymous Aug 28, 2009

    the problem tuned out to be overheated cluth plates they have now been replaced and no more noise happy days.

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  • Posted on May 19, 2009
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Hi,sounds like the clutch plates or the clutch basket .

Testimonial: "it was the clutch plates a previous owner must have been a bit lazy on the oil changes evidence the plates had been overly warm!!! "

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  • Posted on May 04, 2009
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As for the top end cond. whitch you should be replacing your piston and rings soon enough then you'll see any overheating damage if any. check your maitainance schedule for how often to service piston/ring/ex valve, etc. cylenders are very costly pistons are cheap. the noise/vibration is probably your rear shock linkage. it's comomn to replace the bushing/bearing on top of your swingarm

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