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  1. D

    7.5 Mercury Outboard Trouble Starting

    There is no need to be rude. I simply misread you're statement. I took the check valve off and found it was stuck. I soaked it in mineral spirits overnight and it appears to be freed up now. The engine starts and runs great now
  2. D

    7.5 Mercury Outboard Trouble Starting

    Is 120psi not good enough compression? I was thinking about taking off that check valve and trying to clean it out. It seems like something must be restricting that since when I cover up the end of the tube with my finger the engine behaves similarly as to when the tube is hooked up.
  3. D

    7.5 Mercury Outboard Trouble Starting

    Also what is the bleed drain for?
  4. D

    7.5 Mercury Outboard Trouble Starting

    I replaced all the gaskets in the carb, the float, the needle and a couple other parts that wouldn't effect the carb, ie the thermostat, the throttle lever, throttle cables etc. The guy before me said he replaced the impeller and it spits out water. I have not been focusing on that since it...
  5. D

    7.5 Mercury Outboard Trouble Starting

    Hello, I recently bought a 1979 mercury 7.5hp. The guy said it ran but unfortunately it barely coughed. I rebuilt the carb and replaced a bunch of other parts but it still will not start properly. It will start and run beautifully with a little bit of starting fluid (I sprayed a bit of oil in...
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