My first time tearing down an XR200R to replace the crank and not sure how the oil slinger comes off. Got the cover with the three screws off- is there a nut holding it on? Is it a normal hex nut..doesn't look like one? BTW, the slinger had a lot of oily aluminum powder in it from where the worn cam chain ate some of the case up. Guess i should look at the oil pump for powder too. When I do get to the point where i can split the case, should I have the left (flywheel) side down and pull up the right side or does it matter? Thanks.