Question about 2006 KTM 250 SX

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I have water leaking into the gear box is it the o rings (4) ? The bike is a 2000 250 sx

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Is the oil in your engine emulsified? (creamy substance in the oil or around the oil filler) If so then it would seem as if you may have a leaking head gasket, or cylinder base gasket.

Posted on Oct 10, 2013

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Posted on Jan 02, 2017

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When i engage eiather 1st or 2nd gear from neutral bike seems to grab and make a clunk noise, once rolling no problems


Older 4 speed transmissions were known for their "clunk" going into 1st gear.

However, even though you didn't give a model year, I'll assume you mean something newer than those.

If it "grabs" when going from neutral to 1st (bike wants to "jump"), it usually means the clutch push rod (under the primary cover's "Derby cover) needs adjustment, followed by the clutch cable.

As far as the leak where the cable enters the transmission, there is an "o-ring" seal that might need replacing.

Dec 10, 2013 | Harley Davidson FLSTC Heritage Softail...

1 Answer

I have a Yamaha Roadstar 2004 and just had the starter relay replaced today. I was driving it home and stopped for gas. I then discovered oil leaking under my bike. What could this be?


Sounds like the O-ring at the starter motor was damage during install. Take it back and have them put a new O-ring in properly. On many bike engines the starter and alternator penetrate into the oil filled gear box.

MGM

Oct 04, 2013 | Yamaha Motorcycles

1 Answer

I have a 2008 KTM SX-F 250 with only about 4 hours of ride time on it. It sat all of last year and only rode about 4 hours the previous year. This year the clutch does not engage, it feels fine but when...


I had the same prob with my bike heres what i did.. I took the cluch all apart soaked all the clutch plates in oil. Than i ordered new clutch springs from <Motosport.com.> Than put all back togeather and rebled the clutch and it work like a top.. HOPE THIS HELPS..

Mar 07, 2012 | 2008 KTM 250 SX-F

1 Answer

Hi there I pour water in to my radiator on my ktm 125 sx 2007 and the water comes out the middle of my gear box casings and of course it's mixed with the oil. Any ideas was thinking inner water pump...


Your cooling system leaks into the engine. You need to check the water pump for damaged oil/water separator and cylinder's head gasket next.

2_5_2012_9_12_37_pm.jpg

Feb 05, 2012 | 2007 KTM 125 SX

2 Answers

My ktm 65 sx gear shift wont select down


not sure bout that bike specificaly, probly there is a spring on the gearshift shaft , or something to return the lever and shift drum back whenever actuated. no matter what it is, you gotta split the cases to fix it .

May 13, 2010 | 2005 KTM SX 125

1 Answer

My 2003 KTM SX 200 lacking bottom end, top just rebuilt


isn't that a two-stroke? pull the jug off and check the piston/bore...if you can do that you're okay...Otherwise, call "Lazarus" at GT Thunder in Millersburg, FL and ask NICELY what to do.
P.S. he's a BUSY man be NICE to him!

Jun 15, 2009 | 2003 KTM SX 200

1 Answer

Suzuki 250 2001 model


try tightening up you head bolts to and check the head gasket if you ripped it a little bit then it will let water pass through too..

Dec 05, 2008 | 2005 Suzuki RM 250

1 Answer

Camshaft


I had a complete set of new seals installed last fiday and the pump appeared to be nice and dry? While sitting at the starting line for the district 37 grand prix last Saturday with the bike idling I looked down and fluid started spitting out of the weep hole?? I turned off the motor and it eventually stopped leaking. I went ahead and raced and it leaked a small amount more throughout the day??? Any ideas?? other than maybe it was a bad seal? or a bad installation from my local shop??probably right. The stock o-rings KTM sells for the carrier are 2-3 sizes smaller than they should be. I bought a bag of the corect (IMHO) o-rings. When you stretch an o-ring it gets thinner the further you stretch it the thinner it gets until it breaks. Since the o-ring is stretched thinner on the carrier it is not compressed properly it looses some of it sealing surface and can't hold the pressure as well. I think this is the reason most of the newly replaces water pump seals leak. That's why it will start leaking as the motor heats up and will continue to leak until the motor cools off and the pressure is gone from the cooling system. To test this warm the motor up and note how long it takes before the coolant starts leaking. Let the bike cool and then remove the radiator cap and warm the engine up if there's no leak then the o-rings are probably bad if it starts leaking then the seals are more likely the problem.,,,

Nov 10, 2008 | 2002 KTM SX 520 Racing

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