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How do I tune this saw?

Discussion in 'Chainsaws and Power Equipment' started by bobdog2o02, Jan 26, 2016.

  1. bobdog2o02

    bobdog2o02

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    Soooo, i got the Blue Max on sale from Home Depot $100. I thought it would be a good tool to learn 2-stroke carb tuning on. Id also like to do a MM to it but am up the creek on tuning so here goes.

    MasterMech mdavlee millermodsaws and other 2-stroke gurus, is there a definitive procedure to tuning a 2-stroke? I am familiar with 4-stroke cycles and am very mechanically skilled, just never learned a 2-stroke. So here are some pics of the victim after the covers were removed.

    20160126_152050.jpg


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    20160126_152922.jpg


    20160126_152927.jpg
     
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  2. bobdog2o02

    bobdog2o02

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    So my first order of business is goin to be getting to the L/ H screw. they look like there are caps over them.... Next will be a MM. Ill take pics of things as i go, and i'm all ears for advice, i dont know my azz from a trash truck on 2stokes....
     
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  3. papadave

    papadave

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  4. RCBS

    RCBS

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    I too have always been leary of making adjustments on 2-cycle engines. Have done plenty of reading and watched a ton of Youtube stuff...still a little hesitant. I need a tach. Not sure if what sounds good to my ear is really good or not.

    Tuners...school us noobs!
     
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  5. old 040

    old 040

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    Those carb screws most like will need special adjusting screwdrivers, look closely at the heads of the screws, most likely not capped. They look like single v style screw heads.
     
  6. Barcroftb

    Barcroftb

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  7. Barcroftb

    Barcroftb

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  8. saskwoodburner

    saskwoodburner

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    I wish I was more articulate and/or could type quicker, I'd try to get you there. I'm relatively new to saws (only got into wood burning last fall), but I have a good head on my shoulders. Here's a basic tune sheet.

    Adjustment and Tuning of a Chainsaw Carburetor
     
  9. concretegrazer

    concretegrazer

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    Looks like it. I'd slot the heads. Needing to carry multiple tools to tune different saws would be annoying.
     
  10. bobdog2o02

    bobdog2o02

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    Being the tinkerer i am i yanked the carb to get a better view of the L/H screws. They appear to have just one small indented key in them and the idle screw appears to be the same thing. Barcroftb is that one of the tools in that pack you posted? I also took the liberty of yanking the muffler.... I believe my next step there is to unfold the crimp and see whats inside there.

    20160126_173136.jpg 20160126_171213.jpg 20160126_171944.jpg 20160126_171952.jpg 20160126_172000.jpg 20160126_172005.jpg
     
  11. bobdog2o02

    bobdog2o02

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    Ok, i looked at the tools a little closer, the one that looks like a pie is the one that would fit. Just curious, does anyone know what tools my CS-400, and CS-670 would need?
     
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  12. bobdog2o02

    bobdog2o02

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    Oh yea, before i forget to mention this.

    Working on something free of crud and other random debris is awesome.
     
  13. Elderthewelder

    Elderthewelder

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    yeah, but is that your wife's mixing bowl from the kitchen you are soaking that carb in:heidi:
     
  14. bobdog2o02

    bobdog2o02

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    Nope, it's a stand mixer bowl. I picked it up from a thrift store for $2, and is stainless. Mrs.Muffinhead doesn't run the kitchen here anyway, it's a man's kitchen:p
     
    Last edited: Jan 26, 2016
  15. Adirondackstihl

    Adirondackstihl

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    Mitch did a great job here.....


     
  16. bobdog2o02

    bobdog2o02

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    So this isnt my finest work but the crimp was damm tight. Looks like i found a CAT in there, think it'll fit in the Princess.

    Seriously though, what is the best plan of attack from here? Knock out the cat completely, drill a few holes, open up the exit ports?

    20160126_182314.jpg
     
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  17. HoneyFuzz

    HoneyFuzz

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    I love that blue...congrats !!!
     
  18. bobdog2o02

    bobdog2o02

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    Ty
     
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  19. Mrs.Muffinhead

    Mrs.Muffinhead

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    I cook sometimes! And I do all the other inside housework like ur laundry!

    FYI I love the blue!
     
  20. bobdog2o02

    bobdog2o02

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    Yes you do.:cool: