I have a 96 thunderbolt that has a complete freshened engine the problem is it leakes oil from the right front cyl stud area ( between the stud & the cyl base flange ) out of the flange hole around the stud --only after the engine has been running & shut off while sitting,will do this as long as it sitts ( Quite a lot of oil ) can the oil pump piston that holds the oil in the tank when not running be stuck open allowing the crankcase filliing up ?? your thoughts please

Motorcycles - Buell - XB12X - 2008 Buell XB12X