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Stihl carb upgrade

Discussion in 'Modded Work Saws' started by BlackCoffin, Nov 26, 2018.

  1. BlackCoffin

    BlackCoffin ArboristSite Operative

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    Now I know some parts between saws are interchangeable like this jug fitting on this saw or this clutch fits this other saw and so on, what I’m curious about is if anybody knows what carburetors are interchangeable between stihl saws? Specifically for example could I fit a 066 carb on a 044? A larger carb for more airflow is what I’m after. I don’t have the knowledge of grabbing any old carb off the shelf and making it work. Also I know some people mill out their carbs larger but don’t want to mess with that either. A friend of mine has taken a 084 carb and fitted it to a 066 and made a screamer with it...but it entailed some modifying I’m not looking to do. Even if the carb wasn’t a stihl unit and as long as it could be bolted on and tuned that would be great. Any help is appreciated!
     
  2. Chainsaw Jim

    Chainsaw Jim CJ Saws, LLC

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    Swapping out from an 044 to an 066 carb will definitely take some work. I think the best option would be to have your 044 carb bored out a little bit. It's a quick and simple process that will leave you with a perfect carb without a bunch of messing around with throttle and choke rods.
    I see you're in the pnw as I am. Maybe you're close enough to come pay a visit.
     
  3. Rick Stephens

    Rick Stephens ArboristSite Operative

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    I did mod a 440 carb to fit my 361. It went well swapping over a bunch of the parts, like the shafts and top bottom covers. I looked at the 660 and 440 carbs and the design is too different. The entire mounting system is arranged wrong for the 660 to fit the mount stud arrangement on the 440. Chainsaw Jim is right on unless you can find a different carburetor that uses the same basic body dimensions.
     
  4. weimedog

    weimedog Addicted to ArboristSite

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    I think a relevant tag on to this thread is in the Stihl guys opinions, what are the BEST options for saws like the 660/066's and related saws. :) Be curious to hear opinions..
     
  5. BlackCoffin

    BlackCoffin ArboristSite Operative

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    Chainsaw Jim whereabouts are you located? I’m up in Lynden knocking on Canada’s door.
     
  6. Chainsaw Jim

    Chainsaw Jim CJ Saws, LLC

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    I'm in Springfield Oregon.
     
  7. Chainsaw Jim

    Chainsaw Jim CJ Saws, LLC

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    I think your topic of interest is very worthy of having its own thread.
     
    weimedog likes this.
  8. trappermike

    trappermike ArboristSite Guru

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    The 064/066 carb will slide right on an 044,you will have to turn the fuel and impulse fittings,adjust the throttle rod,but it's probably not best for a stock saw. For 066/660 saws the 064 carb bored out is the best setup. All HS and WJ carbs can be bored larger for a nice increase in flow.
     
  9. mikerudder

    mikerudder Chainsaw Enthusiast

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    I’m just in the other side of he border from ya! I come down to Blaine quite often. Playing golf at North Bellingham on Tuesday!
     

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