I have a suzuki 150 year 2000 2 stroke my problem is an oil issue. lately with the motor in the docking position (up) it leaks oil out of the throtle area overnight. when I start it up if the motor is full down it starts smoking crazy after its been running a few minutes ,If I raise the motor up a little it stops smoking crazy. I would appreciate any help on this as its baffling my local mechanics.do I need a new oil pump?