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?
Copper crush washer most likely, and hopefully! Should be changed every oil change but quite often it gets overlooked! Either that or you over tightened the sump plug and cracked the case! Hopefully not!
Did you tighten it hard? Did you turn it the wrong way when initially loosening it?
The drain plug on my bike has a solid copper washer. Before I reinstall the plug, I resurface the washer on piece of 320 sandpaper laying on the semi-flat garage floor. I’ve been using the same washer for 5 years with no leaks. It is getting pretty thin, though.