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  1. C

    Fuel Carburater Question

    Hi everyone I have 4.3 Mercruiser and I have put a 4 barrel carb. I took the boat to test carb and I was able to run 26 knot but then it lost compression and I took her down to a lower Rpm and it would continue to operate but when pushing the for a higher rpm it would almost shout down until I...
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    4.3 V6 Mercruiser 2000 Engine Electrical Harness

    I have a 4.3 V6 Mercruiser 2000 and would like to install an engine electrical harness. I changed the Car from a 2BB to a 4BB. I am looking for a video or a schematic on how to install the harness from ground zero. Any help will be appreciated.
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    No Sparks

    When testing the voltage from the ECM it shows only 11.2 Volts when cranking its drops to 8.7. The engine cranks but does not start. any Ideas. I did switch to a used model. still getting less then 12 volts just around 11.6 volts until I crank the engine then it drops to 8.7 volts on the red/...
  4. C

    Low Voltage 4.3 V6 Mercruiser Alpha

    When testing the voltage from the ECM it shows only 11.2 Volts when cranking its drops to 8.7. The engine cranks but does not start. any Ideas. I did switch to a used model. still getting less then 12 volts just around 11.6 volts until I crank the engine then it drops to 8.7 volts on the red/...
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