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    1998 Merc 150 EFI @ WOT, RPM increases when activating trim switch

    My 1998 Merc 150 EFI has 350+ total hours. It is mounted on a 22 foot tritoon, and has run great until a few weeks ago. At full throttle, with one person on board, it would run about 30 mph. Three weeks ago, it started missing badly at all throttle settings, from idle to WOT. I replaced the...
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