hello everyone, i baught a 95 xr200r not to long ago it seems to work good except for the fact that it leaks oils from the middle of the crank casing and smokes like a chimney when it runs after a few seconds. i took the crank case cover off as i was planning on taking the motor out but lack the tools. the crank case gasket was toast and came off in peices. could this cause an oil leak problem? im new to bikes but have a service manual for guide me, i also drained the oil and refilled it incase it was overfull but still she smokes, and also has a small drip leak from the draining gasket. any ideas? oh i also checked the spark plug and shes oily aswell. i just done have the coin to take it in and get fixed up any thought are appreciated, thanks