oil

So this might be a dumb question, but im new to dirt bikes. I recently did a oil change to my bike and now it is leaking from somewhere? Its possibly coming from my oil drain plug. Was there some type of seal that i didn't notice when I took it out?

hey all, my dad's 06 ktm 450 xc it's spitting oil from the coolant breather tube I think. It's not the radiator over flow tube, but a rather large hose coming out of the bottom end. Is this a problem or is it normal? We are a 2t family and this is the first 4t we have ever owned. It would be...

On my last trip out I laid my bike down on its side pretty hard and put a hole in my water pump cover (that went unnoticed when assessing damage.) So needless to say it was running hotter than it should have when we finally noticed the problem about 15 minutes of hard riding later. While we were...

I was wondering if anyone knew if the cylinder head of a rm-z 450 is supposed to rock or wobble when on a flat surface? My bikes leaking oil out of the cylinder head