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  1. M

    1998 5.7L Tachometer Not Reading Correctly

    I have a 1998 5.7L 2bbl w/ thunderbolt V and just recently the tachometer has not been reading correctly. its consistantly ~1500 RPMs off where it should be. the gauge does activate every time but isnt correct. is this more likely the gauge or the electrical signal to the gauge. do these gauges...
  2. M

    Mercruiser 5.0 carburetion problem ...should I drain my fuel tank?

    also, if there is a small filter on the inlet line at the carb, this may be filled with gunk. that was my problem when it wouldnt get up past idle.
  3. M

    5.7L Mercruiser; Engine Running Weird

    How would I best clean the tank? I did a few things that hopefully should work. I pumped it dry (had 25 gallons) and replaced the fuel filter/water separator. Also I replaced the line from the tank to the first filter.
  4. M

    5.7L Mercruiser; Engine Running Weird

    Thanks for the help
  5. M

    5.7L Mercruiser; Engine Running Weird

    Runs great now
  6. M

    5.7L Mercruiser; Engine Running Weird

    There’s the inlet filter on the carb.... #boatdontrungud
  7. M

    5.7L Mercruiser; Engine Running Weird

    ill take a look at the anti siphon. it seemed to be working when i was draining the gas tank because it took forever to pump out haha. but ill see if its gunked up. also when i let it sit off for a a minute it would start and rev slightly but then choke out again. maybe that is the anti siphon.
  8. M

    5.7L Mercruiser; Engine Running Weird

    This one is my first post here and is a story so i appreciate the read... TLDR: engine wont rev past idle and sounds like its choking out. Engine: 1998 5.7L Mercruiser with a 2BBL carb. I bought this boat from a good friend who never had engine issues with it but hadn't ran it in 3 years...
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