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There is no oil in a 2 stroke crankcase. There is oil in the gearbox. It's inside where the front sprocket is. The fill is on top (remove bolt), drain in bottom. There will be one of those brass tubes in the top. Those (gearbox and rear end) are vents and should have hoses tied up on the frame.
2000 GNC 5N\
2001 GNC 9N \ 40+ class
2004 GNC 9N /
2014 rock crusher "GO tortoise GO!"
2016 Byrd Rooster
Father of the "11" time National champion,and worlds fastest woman ATV racer
A few fast LT80's
250R~300cc's
300ex
350 Rancher
Kymco Mongoose
Survivor of the 12 Hours of ATV America 04 and 05