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partner S50

Discussion in 'Chainsaw' started by catskillhermit, Oct 21, 2007.

  1. catskillhermit

    catskillhermit New Member

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    i have a partner S50 which i finally got running. :chainsaw: :greenchainsaw: I have 2 questions: What is the gas/oil mix for this saw? I need a air filter where can i get one? :help:
     
  2. SawTroll

    SawTroll Information Collector

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    Don't worry, just run it at 50:1, with premium gas and synth oil - I do with my much older Jreds 621, that are speced at 25:1....

    ..oil has become a lot better....

    S50
     
    Last edited: Oct 21, 2007
  3. Poley4

    Poley4 AboristSite Guru

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    +1, the engine will run cleaner and last longer on 50:1.
     
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  4. catskillhermit

    catskillhermit New Member

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    partner S50 chainsaw

    ok you both say 50 to 1 but wouldn't that make the gas/oil mix to thin and not lubricate the saw properly? i used to have a really old McCullough chain saw and if the gas mix was not correct it would boil in the tank




     
  5. Poley4

    Poley4 AboristSite Guru

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    Today's oils are far superior to the oils that were available even a few years ago. This allows you to use much less oil with the same or even better lubrication then before. As far as the boiling issue, my 306A Poulan will do that in hot weather, but only if I try to start it after it has shut down hot, but it did that even when we used to run it at 16:1. I would think that the opposite would be the case, where oil has more BTUs of heat than gasoline, more oil, more heat? I'm just speculating now.:confused:
     
  6. Nortryder

    Nortryder ArboristSite Lurker

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    The more oil you mix with the gas the leaner (hotter) the engine is running. It doesn't make much sense until you think about it. More oil= less gas. Oil doesn't burn but lubricates. Gas burns = heat. I burnt up a couple of race bikes until an oldtimer clued me in.
     
  7. Iron man

    Iron man ArboristSite Operative

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    This thread is 5 years old LOL..Just to ad my partner p70 runs fine on a synthetic 50:1 mixture.
     

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