Hey, So I bought a 1996 45 hp johnson. After my 1989 40hp mariner finally giving out. So I put the boat in the water engine starts fine idles away. After half throttle there was nothjng. Just bogging out. So took carbs off and cleaned them changed the spark plugs and whatnot everything seemed to be good. It does work better now but it just doesn't seem right. I still don't think I'm getting all the go out of this motor. The boat is 16' fiberglass. It's not heavy in any way and that 40 mariner I had could push this boat up to 45 kms and hour or faster. This 45 johnson only does 33-34 kms/hr. So checked the prop tonight thinking that May be a problem. It's an evinrude prop with numbers 13.25 x 17 T65188. After looking around it seems like this Is the proper propeller. Any suggestions on what could be happening here cause I don't know what else to do.
