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  1. J

    Mercury 500 Thunderbolt 1973 50 hp - Starts, Idles Great, Dies when put in gear

    My 73 Merc 500 starts up no problem and runs great for 15 20 minutes but once I put it in neutral then try to put it back in gear it dies. Then, to get it started I have to pull the choke(starts then dies the second i release the choke). Then it starts up fine with no choke and will idle...
  2. J

    Mercury 500 Thunderbolt 1970 50 hp gear case NO OIL

    I have been reading threads from this forum for a while now and have been learning lots but im very new to boating other then being a passenger. I am looking at buying a boat with a 50hp merc(1970. looked up the serial #). I looked at it today and checked the compression and got between 116...
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