I bought this merc outboard for my 18 foot tri hull,didn't have steering cable or electrical conections that plug into the side of motor case. was wanting to know if the motor is to small or to big for the boat? the guy said it ran good,I didn't hear it run my self. I been around boats and have taking them out my self,this is my first to own.also wanted to know if this motor is a waist of time and money to get going.strait 6 with 3 carboraters,and 2 coils. looking for some advise.