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  1. W

    mercury 500 50HP water exhaust cover issue

    That is a long story. Only No.4 cylinder has a spark.So I removed the ignition cabel to open the distributor. But in order to remove the cable, I have to removed a bolt from exhaust cover. When I put everything back, I snapped that bolt. and broke a piece of water jacket.Now I have to pull the...
  2. W

    mercury 500 50HP water exhaust cover issue

    No. the Left one is from another post. The right one is mine. My cover block the water channel.You can see the difference
  3. W

    mercury 500 50HP water exhaust cover issue

    Hello,everyone I found my cover is litter bit different from others'. Compared to other cover, my cover blocks the cooling cavity.This motor has been running for more than 40 years. Can someone help me figure out if my opinion is wrong,share your thought.
  4. W

    OB will not engage forward it only revs. Reverse works Fine

    Any update?
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