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61 Mis-match

Discussion in 'The Repair Shop' started by M2theB, Jan 12, 2020.

  1. JohnnyBlade

    JohnnyBlade JUST GONNA SEND IT

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    Good deal! I also was doing some mis matching and I think u could use a 365 piston in it as well. Dont know if a windowed piston would help or hurt an open port saw though?
     
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  2. Motorhead

    Motorhead Pinnacle OPE Member

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    The full skirt on that particular windowed piston is why I think the 625 runs so well.
     
  3. huskyboy

    huskyboy Sorta a Husqvarna guy.

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    You’d get more gain from installing a 266/268/272 topend and intake tract that better suits the chassis rather than grinding on the cases for a 61cc open port cylinder. Imho.
     
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  4. M2theB

    M2theB Super OPE Member

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    I was really wondering if there was a factory case that matched that cylinder. Not looking to replace the dog for tail I have necessarily.
    Interesting it seems like a factory solution in some cases.
    Just seems like there’s potential there not being used.
     
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  5. Dub11

    Dub11 Some body poisoned the watering hole!

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    Base gasket delete for the win! If you're just going back stock.
     
  6. M2theB

    M2theB Super OPE Member

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    That’s pretty much where I’m at.
    Just making sure I knew what stock is for this saw.
    Thanks!
     
  7. Tugg

    Tugg Well-Known OPE Member

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    Where did you find the piston? Is it a little red barn or whatever that seller is called or is it OEM?
     
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  8. Motorhead

    Motorhead Pinnacle OPE Member

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    Yes LRB has them,I think my saw has a golf in it.
     
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  9. J. Dirt

    J. Dirt Super OPE Member

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    Sorry for the hi-jack here, but I just got a 61 to work on today. Can anyone figure out what I’m seeing on the flywheel? Is it pitting, someone drop it or is something going on with the coil blowing holes in it? 6719391A-7C3C-43A5-87E3-9AE2C3D896C2.jpeg
    The magnet side seems fine... 8998F3DE-C283-4842-92FA-D20DCC110CEC.jpeg
     
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  10. smokey7

    smokey7 Pinnacle OPE Member

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    I was just bout to say the jonsered saws are the same way as far as case blocking the lower transfers as well as the gasket. I've tried several piston options and never noticed much difference except using a windowed 61 piston in a 630. That makes a dang good runner.
     
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  11. Motorhead

    Motorhead Pinnacle OPE Member

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    The windowed single ring 61 piston is what is in the 630 super 2.I put those in all the 630s I’ve built there is a very noticeable improvement in Performance.
     
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  12. Motorhead

    Motorhead Pinnacle OPE Member

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    You can get these in other brands 0ED918AA-656B-4CB3-BD9B-AC891F002CC0.png
     
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