How much oil does my 426 take

[Thepowderblue]

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]

Read:

https://www.thumpertalk.com/forum/showthread.php?t=881284

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]

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]

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

Edited October 1, 2011 by Thepowderblue

[Thepowderblue]

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

[grayracer513]

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

[Thepowderblue]

The dip stick hole in the down tube

[grayracer513]

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.