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  1. R

    50hp merc bigfoot 2001 model overheat

    I just thought I'd redefine the problem I mentioned earlier in hopes that some more information might help. This is a 2001 50hp 4-stroke mercury bigfoot that has been setting off the overheat alarm and I tried to fix by replacing the t-stat, water pump and backflushing, all no improvement...
  2. R

    2001 50 hp bigfoot cooling problem

    I was trying to help a friend with her boat and something is wrong. She complained about a cooling alarm and diminished output from the tell tale. I installed a new waterpump, t-stat, backflushed, spark plugs, engine oil and gearcase oil. Everything seemed alright in the driveway with the engine...
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