OK, Just Bought the bike! Were not sure on this oil injection. There is a tank for filling some type of oil under the seat. Are we to put motor oil in this tank or is it for the 2 stroke fuel mix.(Hints oil injected they should be more specific.) There is a site glass on the side. Also if this helps, there is a tube that runs down from the bottom of the tank that drops down to the engine casing near some type of contraption, where the the throttle cable after it why's off from the main cable to the carb, is connected. Please help!!!!