Gday guys just bought a Boat with a 93/94 50hp Merc on the back, it looks to me like it has oil injection setup on it as it has a canister sitting at the back and a pump looking thing under that but the guy I bought it off said to use 50:1 premix, im wondering how I can tell if the oil injection is working/connected or not.<br /><br />Also wondering where abouts the serial/model numbers are located on this outboard ive checked around the mounts on the boat and cant see anything?<br /><br />Cheers Lee.