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Thread: MS 200t problems

  1. #1
    TreeHouser Nutball's Avatar
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    Default MS 200t problems

    A guy I work for wants me to fix his 200t, it's doing something two of his other saws occasionally do, and what two Husqvarna weedeaters my dad owns did 2 weeks after coming out of the shop from having the same problem. It only runs between half and full choke. What are the usual causes of such an issue? The air filter looks pretty dirty, so tuning it shouldn't be the right option since the dirty filter should already help richen it.

    Possible solutions I can think of:

    New gas filter
    New spark plug
    New diaphragm kit if carb cleaner and cleaning dust out of the vents doesn't help

    What other simple maintenance should I do on this saw? Keep in mind we're trying to save some money or it would go to the dealer.

    If I get it running well, are there any easy worth while modifications? I have not ever owned one before, but the exhaust area looks kind of weird, is the muffler on the side or bottom? If it is on the side, then it is missing half of the muffler.

  2. #2
    TreeHouser Sponsor Sgriff's Avatar
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    Im no expert by any means but I don't see fuel lines on your list,which if theres any kind of flaw in,can cause some finicky results....

  3. #3
    TreeHouser Nutball's Avatar
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    I thought about fuel lines in terms of clogging, but not in terms of air leaks, great idea, that would make it lean.

  4. #4
    TreeHouser Sponsor Sgriff's Avatar
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    They are notorious for pinhole leaks. Ethanol could eat at em also if they are the original lines. I think they changed material to be able to withstand the alcohol.

  5. #5
    TreeHouser Jomo's Avatar
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    Your problems will vanish once new fuel lines n carb rebuild are completed, and you take a solemn vow to never again let ethanol contaminated fuel fug up your expensive saws.

    I use 100+ octane racing fuel at 9 bucks a gallon, in all my saws.

    Ethanol fugs up chainsaws, it's that simple IME.

    Be kind to your tools.

    Jomo

  6. #6
    TreeHouser Nutball's Avatar
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    I've gone to 100% 93, I doubt the guy who owns the saw does, who knows, he might not even use 93. I'll ask. I'd buy him some 100% 93.

  7. #7
    TreeHouser Sponsor Bounce's Avatar
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    Could simply be a clogged up spark arrestor.
    "The trouble is, you think you have time." - Buddha

  8. #8
    TreeHouser Jomo's Avatar
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    You can always get the premixed canned stuff from your saw shop mate,

    Simply being 93 octane's no guarantee there's no ethanol in the premium pump.

    It's everywhere, and fuggin up lotsa chainsaws n other two stroke engines.

    Jomo

  9. #9
    TreeHouser Sponsor Sgriff's Avatar
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    With the proper fuel line/material and some good stabilizer/mix ethanol isn't so bad. Somthing like this

  10. #10
    TreeHouser Sponsor Sgriff's Avatar
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    I got a new carb in my 201 and a lil porting,I must say im using ethanol free in 95 rating @ $7.60 a gallon 😖

    Where you get yours Jomo?

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