hey i have a 1986 lowe 16ft 160 side console bass boat and i have a 1988 johnson 48 spl that only weights 160 and tops out at 34 mph and i want to upgrade the motor either to mercury 50 or 60 that weights 240 pounds and im concern about the weight the way the boat will ride and sit and get up...
My 1988 48spl Johnson I’ve done did a lot of work to it I’ve done change the carbs and set the carbs and new spark plugs and new fuel lines and new fuel pump and still kills it fires up perfect and them about a minute later it kills on it on like a rough grinding noise kill any help
Hey I have a 1988 48spl Johnson I’ve done changed the plugs and gaped them and rebuilt the carbs and had set the floats and put a new fuel pump and all new fuel lines and it still kills but fires up perfect like it’s brand new then it kill after about 1 minute of runing like the noise it makes...