Results 1 to 8 of 8
  1. Collapse Details
    Holley 850 help needed
    #1
    Registered Pat Bates's Avatar
    Join Date
    Jan 2010
    Location
    Louisville KY
    Posts
    30
    Took the boat out for the first time this year. When I got back I had a lot of transom soot. It started to do this at the end of last season, and I decided to wait until this spring to check into it. Spark plugs look good, and the motor sounds fine, but it's running very rich.

    How do I adjust the carb to lean it out just a small amount?

    All help is GREATLY appreciated!
    Reply With Quote
     

  2. Collapse Details
     
    #2
    blown power valve(s)
    does Santa's sleigh have a blower ?
    Reply With Quote
     

  3. Collapse Details
     
    #3
    yep, probably. If it ever backfired fairly hard, the diaphrams in the PV's are toasted.
    Reply With Quote
     

  4. Collapse Details
     
    #4
    Registered Pat Bates's Avatar
    Join Date
    Jan 2010
    Location
    Louisville KY
    Posts
    30
    So I'm looking at a carb re-build?
    Reply With Quote
     

  5. Collapse Details
     
    #5
    Charter Member
    Join Date
    Oct 2008
    Location
    Georgetown, TX
    Posts
    426
    go buy some new power valves and spin them in. When you take them out you will find some stamped #s to let you know what size they are. Make sure you get the same ones. You will likely need a set of bowl gaskets, too. Cheap fix that will probably take all of 30mins
    Boat-less...
    Reply With Quote
     

  6. Collapse Details
     
    #6
    Registered Pat Bates's Avatar
    Join Date
    Jan 2010
    Location
    Louisville KY
    Posts
    30
    Quote Originally Posted by Griswald View Post
    go buy some new power valves and spin them in. When you take them out you will find some stamped #s to let you know what size they are. Make sure you get the same ones. You will likely need a set of bowl gaskets, too. Cheap fix that will probably take all of 30mins

    Cool. Anybody got a schematic of a Holley 850, so I can see exactly what I am getting into?
    Reply With Quote
     

  7. Collapse Details
     
    #7
    remove fuel lines. remove 4 screws holding on float bowl. remove power valve screwed in to the center of the metering block. rear size on valve. get new one. thread back in. install new bowl gaskets and remount bowls and fuel lines. Parts in hand, 5 minutes per bowl tops.
    Reply With Quote
     

  8. Collapse Details
     
    #8
    Registered Pat Bates's Avatar
    Join Date
    Jan 2010
    Location
    Louisville KY
    Posts
    30
    Quote Originally Posted by Airpacker View Post
    remove fuel lines. remove 4 screws holding on float bowl. remove power valve screwed in to the center of the metering block. rear size on valve. get new one. thread back in. install new bowl gaskets and remount bowls and fuel lines. Parts in hand, 5 minutes per bowl tops.


    Thanks! Sounds easy enough.

    Appreciate the help fellas!
    Reply With Quote
     

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •