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Gas-Oil mix for McCulloch

Discussion in 'Chainsaw' started by pigsticker, Oct 23, 2006.

  1. pigsticker

    pigsticker ArboristSite Lurker

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    Can somebody please tell me the proper gas-oil mix for a McCulloch Pro Mac 610? Thanks to any responses.
     
  2. twoodward15

    twoodward15 ArboristSite Operative

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    I've got a timberbear, the next size down from yours and it runs 40:1. I'd run the same in yours.
     
  3. pigsticker

    pigsticker ArboristSite Lurker

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    Thanks for the feedback twoodward. That's the mix I'll use.
     
  4. blis

    blis Addicted to ArboristSite

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    2,5% mix for all saws...
     
  5. mbopp

    mbopp ArboristSite Operative

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    The old 610 owners manual I have says 40:1 with McCullough oil or 20:1 with anybody else's oil.

    That said, I run 32:1 and 89 octane in all my 2-strokes.
     
  6. twoodward15

    twoodward15 ArboristSite Operative

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    I run that "all mixxes covered" oil and a gallon of premium. I guess someday if I have a saw failure do to my mix I will change my ways, but I haven't had any problems with it in about 6 years now. I run the same mix on my CSM saw as well, though I just started using premium instead of regular gas.
     
  7. SouthernLA

    SouthernLA ArboristSite Member

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    I was thinking my Timberbear was 32:1 and I ran that in the 610 I had too. That'd be 10-12 years ago. They both ran great.
     
  8. belgian

    belgian Addicted to ArboristSite

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    Mac owner manual says 40:1
     
  9. ozflea

    ozflea Good ol' BP Zoom 25-1

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    Well read and weep the correct mixture ratio is 40-1 with 32-1 reserved for the high performance saws like the SP81 / PM800 / 805 / 8200 and the SP105 and SP125.

    THIS REDUCED RATIO WAS USED TO REDUCE CARBON BUILDUP IN THE DECOMPRESSOR PORTS.

    Mc Bob.
     

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