Not being mechanically inclined, I'd love input on an issue with my engine before I wind up being at the mercy of the mechanic:
Merc Black Scorpion
Problem is engine is "missing" intermittently, but frequently. It only happens under load - if engine is run disengaged from tranny, it's fine. Pulling up a rider during acceleration and while cruising with rider behind, I can feel/hear frequent "misses". Each time the rpm dips about 100 with the sound.
Boat has 300 hours, have had regular services and oil changes/filter changes. Gas is only about 2 months old, and boat has been run every three weeks or so through winter.
Have never changed distributor cap, not sure about spark plugs - have had a friend propose that as a possible issue.
Thanks for the help!