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2009 Harris Grand Mariner 250 SEL Tritoon
Mercruiser 350 MAG MPI Bravo III
serial: 1A335811
300 hours
Engine misses/hiccups only in a certain RPM range around 3000 to 3500. At idle and higher throttle it seems to run fine. It only misses or hiccups in that middle power range on throttling up...