i have a 2000 something yerf dog and i want to do away with the oil injection system. can i just leave the oil pump alone and cap the inlet and outlet lines? and the line on the carb too of course... do i need to remove the oil pump? if i do what do i do with the throttle assembly attached to the oil pump? all my bikes run mix so that is why i am doing away with oil system.....please help and pics are helpful too.......thanks