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MS180 Adjustable Carb

Discussion in 'Chainsaw' started by blsnelling, Aug 27, 2008.

  1. cjcocn

    cjcocn Tree Freak

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  2. angelo c

    angelo c Chooch

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  3. cjcocn

    cjcocn Tree Freak

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    Well then I guess i will order it up and see. :D

    It's been sitting in an online checkout for a while now and I might as well complete the order.

    Thanks for the response. :)
     
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  4. CJH

    CJH ArboristSite Member

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    Read this thread from the start, only question is the throttle linkage modification:

    Install a small screw behind the throttle linkage, blocking the slot, so that linkage will have enough travel to go WOT. Do not bend the linkage or the carb may not fully return to idle.

    Any photos of this modification? Is it made at the carb's linkage connection or in the handle (trigger) area?

    Working on a MS170, runs great, but it sounds like this upgrade can wake it up a bit.

    Thanks!
     
  5. strawmyers

    strawmyers ArboristSite Lurker

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    Are you saying that, minus swapping the snouts, that this is a fully-adjustable carb is also a direct swap? http://www.ebay.com/itm/31072077478...NX:IT&_trksid=p3984.m1497.l2649#ht_1763wt_943

    I don't mind getting and modding a wt215 as described in this thread if needed; but I'd much rather have a "plug and play" option since this is not my saw and I'm messing with it for free out of the kindness of my heart. LOL

    Sorry to drag up a really old thread. Just bought a used ms180 on behalf of a friend of mine. He has zero small engine experience; so I was going to give it a once-over for him and do any necessary maintenance. Running lean at WOT. Went to adjust carb and found out that's not possible... which lead to doing the research that lead me to this thread.
     
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  6. likesaws

    likesaws ArboristSite Operative

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    Bump to the top
     
  7. Adirondackstihl

    Adirondackstihl Flyz, Fuel & Fotos

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    MS170/180 has different impulse passage than MS250.
    No problem. Just make sure to remove the tiny brass plug on the WT215 and block the 250 impulse passage. I use Yamabond to do that.
    Otherwise, the carbs are plug & play.
     
  8. Adirondackstihl

    Adirondackstihl Flyz, Fuel & Fotos

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  9. Tigdim

    Tigdim Got him...

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  10. Adirondackstihl

    Adirondackstihl Flyz, Fuel & Fotos

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    WALBRO WT-215
     
  11. Tigdim

    Tigdim Got him...

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    Thanks for the clarification.
     
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  12. Squatch

    Squatch ArboristSite Operative

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    I’m doing this mod now don’t understand this step either. Did you figure it out?
     
  13. Adirondackstihl

    Adirondackstihl Flyz, Fuel & Fotos

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    Wasn’t necessary on any I’ve seen
     
  14. HarleyT

    HarleyT Tree Freak

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    Both saws have the same "impulse" passage,
    don't they?
     
  15. HarleyT

    HarleyT Tree Freak

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    Don't they?
     
  16. Squatch

    Squatch ArboristSite Operative

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    Successfully did the swap to the WT-215.

    I would love to see some photos of others muffler mods. Or ideas on what you did. All the old photos don’t show up any longer on this thread.

    Tuning seemed optimal at 2600 rpms at idle and a steady 14200 max.

    Also went to a 7t rim sprocket.
     
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  17. Adirondackstihl

    Adirondackstihl Flyz, Fuel & Fotos

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    I’ll try to dig up the pics
     
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  18. HarleyT

    HarleyT Tree Freak

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    What about the impulse passages?

    How are they different?
     
  19. Squatch

    Squatch ArboristSite Operative

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    Unplug 6 0’ clock and plug 9.
     
  20. Henry E

    Henry E ArboristSite Lurker

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    I bought this off ebay. Doesn't have the envirosense. Bolted right up. NO need to plug anything. Drilling the adjustment holes wasn't too bad when you look from the side and top, you should be pretty close.
     

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