last 2 times it sat for a month or so when it started up it puffed oil smoke, and after each ride i had to ad oil to top off tank? i have the crank case vent tube routed up and over the frame and drops down just above the front sprocket (self lube the chain) and i noticed that the chain was pretty wet after each ride (not even a full tank of gas ride) it wont smoke while i'm riding it, pulled the plugs and there not oil soaked? what do you think? i am and have been running mobil 1 motorcycle oil in this thing as well.