I found a mid 70's model 100 HP Mercury to replace my 86 Mariner 150 HP. The mercury doesn't have power tilt. Can I change out motors and use my power tilt that is currently on my boat? Also the present owner of the motor says that it doesn't have a pisser stream coming out the back of the motor. He said he talked to a marine shop and they told him that on some models this is normal. Is that true??? Now last question. Besides hearing it run and checking for compression is there anything else I should check out before I finalize the deal? I've heard of people buying a motor only to find out that it didn't go into gear. Is there a way to check for this with just the ears on? These may sound silly but I'd just as soon not throw away a few hundred bucks.