How much oil does my 426 take

7 replies to this topic
  • Thepowderblue

Posted October 01, 2011 - 12:18 PM


I have a new to me yz426f and I am doing my 1st oil change on it.
I drained the oil from both the frame and motor. Idk how much came out. I was told by the people at ride now all my bike takes is 1qt so I bought 2qts. I have both of them in and it still does not even show on the dipstick.
How much do I need?
And is it bad to mix oils. One qt it Honda 10-40 and the other is some thumper something 10-40?

  • grayracer513

Posted October 01, 2011 - 12:23 PM



It takes 1.6 Liters with an oil filter change. Where did you pour the oil in?

Mixing oils is not a fabulously good idea, but most will blend together with no problem.

  • Thepowderblue

Posted October 01, 2011 - 12:27 PM


I drained most into one of those oil pans where you cant see the oil and it had some oil in it before. Plus I spilled most of it so i hosed it down the driveway so I have no idea how much came out.

  • Thepowderblue

Posted October 01, 2011 - 12:31 PM


when I was checking and adding oil I didnt let it run 1st. Should I ride it then check it?

Edited by Thepowderblue, October 01, 2011 - 12:52 PM.

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  • Thepowderblue

Posted October 01, 2011 - 12:53 PM


Ok I just needed to run it 1st. I had to drain oil out.

  • grayracer513

Posted October 01, 2011 - 02:22 PM


Please answer the question: Where did you pour the new oil into the motorcycle?

  • Thepowderblue

Posted October 02, 2011 - 08:49 AM


The dip stick hole in the down tube

  • grayracer513

Posted October 02, 2011 - 06:46 PM


In that case it should have shown on the dip stick immediately whether you ran it or not. But if you poured oil in it and let it sit a day or more, the oil likely leaked down into the crankcase. You should always run the engine for a minute before checking.

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