I replaced the oil filter on my 95 Seadoo GTX and got air in the oil lines (unavoidably). I bled the oil pump and there is no longer air in the line with the oil filter. Later I noticed air in the larger oil line that runs along the port side of the ski. It has about 6 inches of air in the tubing right after the connection to the top of the oil reservoir. My father says it has been like that as long as he can remember. Should this line be completely filled with oil? I cannot tell if the ski is running normally because we haven't run it in years. Help would be appreciated.