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    Twin Merc 7.4 MPI Electrical Issue?

    Vessel: 1998 Formula 330 SS with twin 7.4 MPI's with Bravo III's and about 360 hours on each. Boat has 1 battery selector switch with Off, 1, both, and 2 selector options. Issue: Boat starts and idles great. When I give it throttle in gear, both engines accelerate but quickly lose RPM while...
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