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  1. #1
    Bronze Member Birch Hill Farm's Avatar
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    Jun 2011
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    88
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    Kentucky
    Tractor
    International 444

    Default Help with a stihl chainsaw

    I have a Stihl MS210 chainsaw that is probably around 5 years old and is causing me problems. It will not stay running, If I follow the starting procedure and choke it with locked trigger, crank it a couple times and then switch it to half choke and crank it, it fires tight up and with in a second it dies. It will do this over and over always starting as long as its choked first then it dies with in a second. So far I have replaced the spark plug, air filter, fuel filter and gave it a tank of fresh gas as well as removing carburetor and cleaning what parts I could reach by removing the side covers of the carb. and it has made no difference. I thought I had solved it when I removed the little vent device at the end of the vent hose, which I assume is what regulates fuel flow by restricting vacuum on the gas tank, it will run and idle with this removed but, it boggs when you give it some throttle. So, I replaced the vent device with a new one and it still wont run. I am out of ideas short of throwing a $50 plus new carb on it, Any suggestions would be greatly appreciated!
    thanks-jon

  2. #2
    Bronze Member
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    May 2012
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    86
    Location
    Southwest Florida, North of Atlanta, Georgia
    Tractor
    kubota B7100

    Default Re: Help with a stihl chainsaw

    When you replaced the spark plug, did you replace it with a stihl plug. I have heard, many times that it must be one for it to work correctly.

  3. #3
    Veteran Member s219's Avatar
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    Dec 2011
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    Virginia USA
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    Kubota L3200

    Default Re: Help with a stihl chainsaw

    Did you actually rebuild the carb? That's probably the next thing to do, and then tune it afterwards. Most carb kits are $5-10.

    Is it possible the saw sat with gas in it for a while?

  4. #4
    Veteran Member s219's Avatar
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    Virginia USA
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    Kubota L3200

    Default Re: Help with a stihl chainsaw

    Quote Originally Posted by JPRambo View Post
    When you replaced the spark plug, did you replace it with a stihl plug. I have heard, many times that it must be one for it to work correctly.
    That shouldn't matter -- my Stihls all came with a Bosch plug, and they have NGK and Champion equivalents.

  5. #5
    Bronze Member Birch Hill Farm's Avatar
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    Jun 2011
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    88
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    Kentucky
    Tractor
    International 444

    Default Re: Help with a stihl chainsaw

    Thanks for the replys! The new plug was a Bosch. I did not rebuild it just took apart the parts that had screws and blew out with carb cleaner. My old air filter had a broken tab on one side and had let a bit of saw dust past so, I though maybe the carb had gotten clogged. So, is a rebuild kit the next best step in this repair?

  6. #6
    Veteran Member
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    Jul 2005
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    Southwest VA

    Default Re: Help with a stihl chainsaw

    i would start with the fuel line and the fuel filter. i've replaced a bad fuel line a couple of times.

  7. #7
    Silver Member lstinthot's Avatar
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    Sep 2011
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    145
    Location
    Spotsylvania, VA
    Tractor
    CT230

    Default Re: Help with a stihl chainsaw

    If the gas tank sat for some time with gas in it, I would take the carb apart and soak it in a carb cleaner solution you can get at an auto parts place. Not just spray with carb cleaner. The dip is about a gallon size container that I have used on many of carbs and have a lot better success than just spray. After it soaks for 20 mins or so then blow out and rinse with water and blow again. Put back in saw and see what happens.

    How did the saw run the last time used?

    Do you always use an air filter? Any chance of dust getting in saw and messing up cylinder?

    Mike
    CT230 with backhoe attachment. 84" rake, bucket bite on FEL.

  8. #8
    Gold Member B8FISH's Avatar
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    Jan 2004
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    494
    Location
    West Bloomfield, NY
    Tractor
    JD 3320

    Default

    Agree on replacing fuel line, check to see if it is squishy.
    3320 300CX w/teeth, 448BH, MX-5 ,5' BB, 6' rear blade, JD 757ZTR, MS261, MS211

  9. #9
    Platinum Member tkappeler's Avatar
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    Jun 2012
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    Location
    Hainesport, NJ
    Tractor
    TYM T293

    Default Re: Help with a stihl chainsaw

    Quote Originally Posted by JPRambo View Post
    When you replaced the spark plug, did you replace it with a stihl plug. I have heard, many times that it must be one for it to work correctly.
    Mine came with a Bosch and it now has a Champion equivalent. It works just fine.
    Tom

    "Opportunity is missed by most people because it is dressed in overalls and looks like work" - Thomas A. Edison

  10. #10
    Bronze Member Birch Hill Farm's Avatar
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    Kentucky
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    International 444

    Default Re: Help with a stihl chainsaw

    The fuel filter is new, I will check on the fuel line condition. It is possible some dust got in around the filter due to a broken tab on one side of the filter. I also removed the fuel line from carb to see if fuel would flow out, nothing came out but, when I removed the little vent thing from the end of the fuel tank vent, gas came rushing out of the fuel line. This is another reason I replaced the part on the end of the fuel line but, it did not fix the problem.

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