Question about KTM 250 SX Motorcycles

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My 2006 Ktm 250 exc has been standing for 3 years, what should i check before starting it?Thank Mervin

Posted by Mervin Carstens on

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Justin Cook

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Mervin, I'm not a motorcycle mechanic, but just knowing engines as I do, I would say drain the fuel tank and replace with new fuel and either a water remover additive or a more complete fuel treatment (Lucas makes some great products for that); pull the plug(s) and check them for any corrosion or buildup, replace if necessary; change the oil and filter; check the air cleaner; and check tensioning on any belts. I'd also suggest either replacing the battery straight away or just putting it on a charger for a while so you know it has a full charge when you go to start it - if you need to replace it, that will eventually become evident, but you should at least be able to get the engine started and see what else -if anything- needs doing.

Posted on Dec 03, 2013

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Anonymous

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SOURCE: Smoke

If it's liquid cooled then that grey smoke is more than likely steam ( the head gasket is on it's way out). If it was burning oil you would able to smell it.,,

Posted on Nov 10, 2008

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Anonymous

  • 7 Answers

SOURCE: how to fill the front suspension on a ktm exc 2001

If you get the sevice manual or contact a dealer to get the correct oil amount for your bike, they need to know the model and year, you have to have the forks off the bike. take the fork caps off, take the springs out compress the upper fork tube all the way and add the specified oil. if they also give you the measured amount from the top that's the best way to get both fork oil levels exact. there is a special tool that you set the oil level in millimeters and it sucks out the oil to the right level, but before you do that step after adding the oil always pull and push on the cartage rod several times to remove air from the cartage tube. you will hear the air coming out and you will feel the changes in the cartage rod as the cartage tube fills up with oil and the air is removed.
something i'm confussed on though is if you replaced a seal you would have had to brake down the fork to replace it. you would have poored the oil into a container, cleaned all the internal parts,and used a fork seal driver to install the new seal. part of your question asks where do i put the oil in? thats in the open end of the fork after you have taken off the fork cap. It sounds to me like you only replaced the dust seal on one fork. that is not going to fix your leaking fork. you need to replace the oil seal thats pressed inside of the top fork tube.

Posted on Dec 26, 2008

Anonymous

  • 1 Answer

SOURCE: how much oil do you put in a 2006 ktm 250 sxf with

You can download an owner's manual for free here

http://www.ktm.co.uk/250-SX-F.28.19.html?&detailview=4&cHash=dcbf8829e1

Posted on May 23, 2009

Anonymous

  • 5 Answers

SOURCE: 2008 KTM 530 EXC WON'T FIRE WITH STARTER

change engine valve

Posted on Jun 15, 2009

Anonymous

  • 6 Answers

SOURCE: 1995 KTM 250-EXC Buring Oil

you possibly have a bad seal on your crank. Its called a labyrinth seal and it will be on your clutch side because it is drawing in crankcase oil. the other side would make it run lean by drawing in air by the stator. if it is eating crankcase oil and not leaking it, it is most likely your problem. you can do a leakdown test on it to confirm the problem. put the piston at bottom dead center and compress the cylinder to about 10 pounds of air using a leakdown tester or a compression tester hose that can be used to hook up to an air compressor somehow and hold the pressure, but do not go above that because you could damage those seals with too much pressure. Check to see if the cylinder will hold the pressure for a good amount of time on its own. Check for air coming out of the crank vent hose or the oil fill hole. Also dont overlook the simple things like your premix ratio. try 42:1 or 50:1 ratios of gas to premix oil.

Posted on Jul 29, 2009

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