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KTM 105sx Oil started coming out under spark plug

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Change the valve cover gasket.

Posted on Jul 23, 2013

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1 Answer

What weight fork oil should I use for a 2006 ktm 105sx ??

It says in the owners manual that you should be using SAE 5, I buy a lot of my stuff from and the service is excellent

Jun 17, 2014 | Motorcycles

1 Answer

I washed my ktm mini adventure now it wont start

I bet you got water in your gas through the carb or in the spark plug check the oil for what looks like a raindow .

Mar 30, 2013 | KTM Motorcycles

1 Answer

KTM 105 SX spark plug fails every ride???

Hi, Sagi nice novella and the usual suspects are:
1. Fuel mixture too rich or enrichner left out too long.
2. Faulty spark plug.
3. Incorrect spark plug for the engine type or service.
4. Piston rings badly worn or broken.
5. Valve guides are badly worn and/or seals worn, crushed or have come off the valve guide and are pumping oil through it.
6. Spark plug cable weak or leaking check for spark jump in the dark.
7. Faulty ignition coil.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Why Does My Dirt Bike Keep Fouling Spark Plugs
KTM 85sx 105sx service manual repair 2004 2009 85 sx 105 sx Download... $8 cheap
KTM 85 105 SX Owner Manual

Mar 11, 2017 | 2007 KTM SX 105

1 Answer

Why am i finding a little oil coming out of a small hole in the cylinder under the spark plug, is it to much engine oil ? ktm 530 excr 2009.

No its an exit hole for water, oil or crud from around the plug holeplug threads get dirty when used & build up it has to go somewhere
Ride Safe

Jan 07, 2012 | 2009 KTM 530 EXC

1 Answer

Not starting after being washed. Initial start on choke ran, then stopped after choke closed. Did this three times. Also have oil dripping out after this from start of exhaust.

Did you get water down the exhaust pipe???
Take the spark plug out,clean it and put it back in.The oil coming out the pipe may be soot and water mixed together.Try this and see how you go

Apr 20, 2011 | KTM SX 200 Motorcycles

2 Answers

2003 KTM 250 SX won't start. When you kick it, it starts to fire but never turns over. I accidently put the wrong gas in it. It takes 60:1 but I didn't put enough oil in it. It died while I was riding it....

If you have run the engine with too little oil then there is probably damage to the piston / rings & / or bore
Remove the exhaust to have a look

Ride Safe

Jun 03, 2010 | 2003 KTM SX 250

1 Answer

It wont start

well it could be because the bike sat for a while. with the 2 stroke gas being mixed with oil sometimes when it sits the oil sinks to the bottom and it will clog the valves fuel lines carb every thing. you should check.

Mar 28, 2009 | 2006 KTM 525 SX

1 Answer

Choking up

try lowering your oil/petrol mix ie 100ml oil-4.5l petrol (if premix), if not change spark plug to hotter grade (whatever plug number is go down a number)

Feb 21, 2009 | 2002 KTM SX 125

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