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Mculloch 610 carb problem

Discussion in 'Mechanic and Repair' started by AuthenicStihlEquipment, May 4, 2010.

  1. AuthenicStihlEquipment

    AuthenicStihlEquipment LawnSite Member
    Posts: 27

    I have a mcculloch 610 chainsaw. there seems to be a problem with the carb. when I took it apart there was some gummie stuff on the little alumium jet cover thats next to the needle valve float. I cleaned with carb cleaner. also tried spraying cleaner in all the jets. for some reason it does not want to prime when you use the choke. no fuel at all is going thru the fuel line when I try to start. the line and fuel filter are new. will soaking the carb in carb cleaner clean it out. is there a better kind of cleaner I should use for a gummed carb. any advise would sure help. :confused:
     
  2. AuthenicStihlEquipment

    AuthenicStihlEquipment LawnSite Member
    Posts: 27

    The carb looks like new inside and out dispite the problem
     
  3. The Lawn Ranger CT.

    The Lawn Ranger CT. LawnSite Member
    Posts: 194

    There might be a small thin metal screen under the primer bulb, check that when you take it apart and make sure that is not gummed up~!
     
  4. The Lawn Ranger CT.

    The Lawn Ranger CT. LawnSite Member
    Posts: 194

    The metal screen should be under those thin gaskets ( make sure you put them back the same way they came off .
     
  5. mowerknower

    mowerknower LawnSite Senior Member
    Posts: 766

    Have you done a leakdown test yet. You could have a bad impulse or fuel line. When checking the impules, it may pass a leakdown but may be plugged instead. Put a little bit of grease on the impulse and pull the rope and make sure the grease moves.
     

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