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Ms261 question?

Discussion in 'Chainsaw' started by Lowhog, Feb 7, 2020.

  1. Lowhog

    Lowhog ArboristSite Guru

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    How well will a 3/8 20” bar & chain work on one?
     
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  2. jltrent

    jltrent ArboristSite Guru

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    It will be a load if buried....a 16" would be better and no more than an 18"...I would put a full skip chain on to help with chain speed and clean out for sure....
     
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  3. full chizel

    full chizel ¯\_(ツ)_/¯

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    It’s not ideal but I will do it
     
  4. vortec325

    vortec325 ArboristSite Operative

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    Mine pulls a 18” 3/8 but is all it wants in hard wood


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  5. hseII

    hseII Addicted to ArboristSite

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    What’s your reasoning for running a 3/8” 20” bar?

    I run a 81dl .325” on my MS261CM: I prefer it this way.


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  6. MountainHigh

    MountainHigh Selective Tree whacker

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    16" max bar length for me running .325 ... even maxed out, my oiler struggles if I run this saw into anything where I have to bury the full bar length in wet wood for some time. Saw oils fine in anything under 14".
     
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  7. hseII

    hseII Addicted to ArboristSite

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    Must be real cold up there or there’s an issue with your Oiler.

    Mine is great @ 20” of .325” here in Georgia.


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  8. EchoRomeoCharlie

    EchoRomeoCharlie ArboristSite Operative

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    I would say no.

    Stick to 16" if you're going to go 3/8" chain. Longer than that and .325 is better.
     
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  9. MountainHigh

    MountainHigh Selective Tree whacker

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    A few degrees above freezing ... Limbed and bucked 3/4 of the way down through a 4o' long maple where it was widening to about 20" across and saw chain jammed - refused to move. Had to pull and thoroughly clean bar 2 times to finish off the log butt. To your point, thinning down the bar oil might have helped, I was pushing it pretty hard for a 50cc saw. Just never seen this with any other saw before, even my 346 and my little EA4300. Before next outing, I'm going to compare bar oiler hole sizes.
     
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  10. full chizel

    full chizel ¯\_(ツ)_/¯

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    Once the case gets warm the oil will thin out anyways
     
  11. Oldsawnut

    Oldsawnut Addicted to ArboristSite

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    Honestly mine pulls it just fine 3/8 20"... Just don't push it. And I use skip chain. I doubt if the free spin resistance is much more on a 20 vs 16 bar. My oiler puts out plenty for a 20" bar. Its nice to have the extra few inches when you need it. Although you can just make 15" cuts and pretend you have a 16" bar if you want.
     
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  12. Orangeinthebarn

    Orangeinthebarn ArboristSite Member

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    I had 1 with 18es bar and semi skip chain. I don’t think I’d go 20. Actually I think .325 18 is best overall for saw
     
  13. sbhooper

    sbhooper Addicted to ArboristSite

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    Why push a small saw that hard? Use a bigger saw, if a 16-inch, .325 is not enough. That size of saw is a great small wood and limbing saw, but anything past a 16-inch and you are pushing it past what it was designed for. Your money, your saw, but I have larger saws for heavier stuff.
     
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  14. Oldsawnut

    Oldsawnut Addicted to ArboristSite

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    I can stall a chain on a 16" 325 bar just fine... Maybe you can put a 12" picco on it so you can take the operator part out of the equation all together.. ;) I to have larger saws but don't always feel like pulling them all out every time. Just use a lighter hand keep your chain sharp and let the chips fly...
     
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  15. MountainHigh

    MountainHigh Selective Tree whacker

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    Good advice, but not always practical for me in my neck of the woods. In most cases when I'm using a small saw it's because I'm hanging off the edge of a hillside amidst windfalls, branches and bushes, and want/need light weight. If I'm lucky enough to have a log on the flat near my truck, then I always reach for my 562xp (or larger if needed). Even when I was in my early sixties, I preferred a light saw when working on steep slopes. Some years later I always grab the light saw and try to have a little more patience with it. Thank my lucky stars that I can still work a full day, but now, if I'm packing a heavy saw on the slopes, I'm done by noon ;)

    Note: Cleaned up my 261 cm today and found some fine wet moss bits stubbornly plugging up edges of the bar oil holes. It's messy out there and need a strong gushing oiler at times! So far, the 261 cm seems a little miserly in wet mossy wood conditions. This is the temperate rain forest (think Jurassic Park North) and things get pretty gummy.
     
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  16. Spoon Carving With Tom

    Spoon Carving With Tom Addicted to ArboristSite

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    My 260 is happy with .325 and 16” and my ms 039 With 3/8 and 20”. That 039 pulls and pulls happily with 20” and even then I can apply some pressure and it just keeps going. 15cc is a big difference, although the ms 260 is far more pleasurable to handle.

    I’m not sure what my 034av would do well with out of those two. I’ll probably get a .325 sproket and use the 16” bar and chain on it but I’ll pose the question like you have, on a new post :)

    I’d go with 16” .325 for your 261.
     
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  17. Icedogs28

    Icedogs28 ArboristSite Operative

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    it really depends on what you're cutting... out here on the west coast with our "soft" woods, 20 inch is the standard bar for an ms261. but i know guys who cut alot of hardwood back east don't like to go above 16-18 inch
     
  18. Spoon Carving With Tom

    Spoon Carving With Tom Addicted to ArboristSite

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    That seems like sound advice.
     
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  19. Jkstihl

    Jkstihl Chainsaws make me fap.

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    Im in the south east and 3/8 20" is the standard for the 261. Pulls it just fine in hardwood. Lol at people recommending 16" for a 261. Guess they dont do too much cutting or they have a robotic back.
     
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  20. Spoon Carving With Tom

    Spoon Carving With Tom Addicted to ArboristSite

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    I don’t do much cutting, but like the feel, balance and response of a 16” .325 on My 260 :)
     

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