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  1. K

    4.3 efi tbi throttle question

    I have a 79 Grady white 212 “21.5’ cuddy” last year boat would jump out of the water 2200 I was out of the water on plane doing about 20-25mph, 3500 was around 40-45, wot 4650-4700 was around 52-55 this year wot is still around the 4700 mark yet only getting 34mph and sluggish out of the hole...
  2. K

    2003 mercruiser 4.3 efi throttle body injected alarm and engine shutdown at idle/neutral

    Okay I have a 2003 4.3 efi throttle body injected mercruiser that upon showing up to the lake will fire off easy and idle just fine to warm up after I push off the dock and toss in gear to head out I can almost immediately go back to neutral and it will run for 3 seconds then throw a steady...
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