My new to me 1986 force 50hp is being repaired. Prior owner has done some things, some not. I removed the lower unit and there is no water tube. In the parts bin obtained, water tube is there. Now how the heck do you put it inside the motor leg.? Nothing in Seloc manual, nothing in search. Really unclear. Could it be so simple to remove the 8 motor leg attachments? no gasket obtainable now so would like to be sure before possible tear. Thanks in advance. North