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Stihl MS 170 Mod Oh Yeah Baby!

Discussion in 'Chainsaw' started by tmessenger, Feb 17, 2014.

  1. Andrew Massey

    Andrew Massey New Member

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    can you please post a link to the carb you bought
     
  2. Ando81

    Ando81 ArboristSite Member

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  3. Huskybill

    Huskybill Addicted to ArboristSite

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    Is it worth the upgrade?
     
  4. Ando81

    Ando81 ArboristSite Member

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    I haven’t put the saw into a solid piece of wood yet but it sounds much sweeter just revving it without load. Like someone posted earlier, it may be a bit harder to start without having the half choke option like the original carby but I think I can live with it. I hope to use the saw on Saturday so I will be able to share my findings then, stay “tuned”
     
  5. Huskybill

    Huskybill Addicted to ArboristSite

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    Sounds a interesting read.
     
  6. Andrew Massey

    Andrew Massey New Member

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  7. Ando81

    Ando81 ArboristSite Member

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    The choke seems to jump off the second notch and goes straight to run. I didn’t take a lot of time to look at it enough but I’m thinking that the choke flap lever is slightly different to original carb and pulls the start lever straight up to run instead of stopping half way. It might need further inspection on the weekend.
     
  8. Andrew Massey

    Andrew Massey New Member

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    All good mate just trying to get a mental picture of what happens, Sounds like its definitely worth it though! I was looking at the wt215 as my ms170 was bogging down at wot, But pulled the carb apart and cleaned it out and now its all good but is running slightly too rich and no longer pulls the rpms it did and cuts no where as fast so might buy one and throw it on just for the adjustability and tuning benefits!

    Called the dealer near me and a genuine wt215 is $112.50, not worth it when I payed $150 for the saw
     
  9. Ando81

    Ando81 ArboristSite Member

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    Well after giving my setup a tune I tried it in some very damp greybox and it seemed to bog down a little. I had my 14” tungsten tipped chain so figured that it wasn’t a really practical test for it. I tried it in a piece of very dry ironbark with the tungsten chain and it performed well. I wouldn’t say a huge improvement in power but a small improvement. I actually got the choke to work on the half choke and it started up really well. I’ll try to get to the muffler mod and another tune tomorrow to see if anything changes.
     
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