As in subject line I have a 1989 Evin 120 and am a little concerned with the aspiration. Although my water pressure guage checks out it never gives any reading when connected to the system. Purchased the boat and motor last year and previous owner had apparently done some rework on the aspiration lines and I am unable to determine from the shop manuals the proper routing. Also, is there nothing supposed to be in the outlet to create some back pressure for the Water pressure guage to work. Would appreciate any suggestions/info/(pictures of proper line connections).<br /><br />Thanks
