Bought a shee with a toasted clutch and just got it back together. I filled up the trans with oil(10w30), ran it for a min then added a little more to bring it up to "full". I took her out for about 15 min for the first time and when I got back it was pushing oil out of the filler hole. I checked the oil level and it was a little low but still on the stick so I know its not overfilled. During the rebuild I put a brand new OEM dipstick and O-ring in it so I kow its not that either. Any ideas why its doing this? I ran it with the dipstick out and my thrumb sealing the filler hole and it didnt really seem to build any pressure. Im not real experienced in 2 strokes, but I know in a car, pressure from the crankcase usually means rings or headgasket or something like that. Any ideas appreciated