i'm having a problem with my port engine, 1995 mercury 225 carb, on a 272 sailfish. The port motor has no power but the starboard has enough to get the boat up on plane. After it's on plane I can balance out the rpms and it runs along fine but i'm sure the starboard is still doing the most work. I did a little test this weekend by tilting up starboard and running port at full throttle and vice versa. Running alone starboard ran up to 3000 and alone port only achieved 2000. a wide open run gives me 5000 star and 4800 port with a speed of 38 mph. I think m propped correctly and these low numbers are another reflection of port not making power. Fuel burn, although terrible is even on both motors. I have not done a ton of diagnosis yet but i'm pretty sure fuel or filters are'nt the problem. I did put some new plugs in the port engine and the old ones didnt look like they were burning too awful. At the start of the season the port engine actually tested a little better then star on compression.
Thats about all the info I can think of.
Anyone who has some suggestions it would be greatly appreciated. Thanks in advance
Thats about all the info I can think of.
Anyone who has some suggestions it would be greatly appreciated. Thanks in advance