Question about 2006 KTM 125 SX

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Hi ni hav jus got myself ktm 125 sx everythings fine except it keeps bouncing into neutral mainly wen im not in the bound once it slips into neutral it goes up more than 5 and obviously bk down wit more than 5 still runs fine n every gear is working which is leaving me confused!! CAN ANY1 HELP ME

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  • ZXP14X May 11, 2010

    your bike slips in to neutral when?


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Open the case and check to see if the gears are stripped and to see if they are assembled right.

Posted on Jun 06, 2009

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Hi , I got a ktm 125 sx which as soon as you hit the power valve opening that it jerks and almost die , by keeping the throttle open she will go past that and then revs all the way thru to the top wi

Hi, Dawie for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your KTM, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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possible un- even fork fluid in each fork leg. I had those same symptoms on a RM-125, it took myself a while to figure out what it was.

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I have the same problem with my 2006 Ktm 125sx! I am in the process of taking it apart did you find out what the problem was?

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I got my piston in my ktm sx 125 blown up im wondering must i open the entire engine to fish out the bits i don't fink dat are there?? my crankshaft spins freely in the crankcase not rubbin on any bits of...

Thanks for contacting FixYa. I was reviewing some of the older un-answered questions trying to ensure your issue has been resolved.

You should be able to resolve this issure by just removing the top end. You will have to remove the tank, the pipe, disconnect the carb, any water hoses, and possibly the radiator. If there is no damage to the connecting rod you be able to thoroughly clean the crankcase withough removing the engine. If you have damage to the top rod end you will have to pull the engine and split the case to replace the connecting rod.


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I have a 2003 sx 250 KTM After rebuild every 10

check the barrel for any even wear.

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Clutch issue. Basket might be notched where the clutch plate tabs are. They wear grooves into the basket.

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2006 KTM 125 sx high revving out problem

Look into your power valve. If it doesn't operate freely, you won't get peak performance. They can get gummed up.

Jul 27, 2009 | 2006 KTM 125 SX

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