I have developed an oil leak behind my front sprocket. I have purchased a new gasket and will attempt to put it in tonight. But as I'm sitting here at work, I realize I don't have a large enough socket to remove the bolt holding the sprocket on. Can anyone tell me what size that nut is? Also, is there anything tricky to removing the counter sproket and gasket? Thanks! ------------------ 99WR,WR timing,throttle stop removed,Twin Air filter,E-Series,carbon air box,Pro Tapers,lights removed,YZ tank,13 tooth sprocket,....Still can't ride worth a s@#t.