RE: 225 Mercury bogging down
Welcome to the forum! I had 2 of those motors and I would first check the plugs and plug wires. Sometimes they make partial connection and sometimes the other cylinders will "pull" along a dead one.
As for the other problem, do you get any alarms? If the alarms aren't hooked up, then check the oil level on the motor. If it is fine, check (and/or) replace the impeller. If that doesn't work - take it to Kenny!
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