I bought a 2000 KX 65 for my son less than a week ago. He has about 40 min. on it total. When I got home with it there was a small amount of gas under it. I thought it may have come from the vent hose. Last night I find a puddle of gas whitch looks like it was coming fro a small hole on the lower/front motor mount (Where the bolt goes through). He had left the gas on after riding Sunday afternoon. I also drained the crankcase oil (seemed to be more thatn what it calls for) whitch was a little on the tan side. Is this hole normal? could the gas be leaking past the rings into the crankcase? Thanks for any help.