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  1. #1
    New Member
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    Jul 2009
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    5

    Default stihl ms290 wont run

    I have a stihl ms290 It will start with the choke on but it won't stay running. Any ideas of what I need to do?

  2. #2
    Veteran Member
    Join Date
    Jul 2005
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    1,651
    Location
    Southwest VA

    Default Re: stihl ms290 wont run

    is the air filter clogged?

  3. #3
    New Member
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    Jul 2009
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    5

    Default Re: stihl ms290 wont run

    the air filter is clean-the saw is 3 yrs. old and has worked flawlessly.Earlier today,I cut wood for about 15 min. and it quit.It will start for a second with the choke on then quit when I open the choke.It has new gas,the spark plug is fine and the fuel filter in the fuel tank is clean-I have not screwed with any settings on the carb.very puzzling....

  4. #4
    Member
    Join Date
    Oct 2005
    Posts
    42
    Location
    calif.
    Tractor
    tym 450

    Default Re: stihl ms290 wont run

    I have the same chainsaw and that happened to me this past winter. Someone told me there is a small rubber hose that runs from the crankcase to the carb that acts as a vacumn to suck fuel into the carb and it can crack. I haven't checked it yet since I have another saw.

  5. #5
    Veteran Member Treemonkey1000's Avatar
    Join Date
    Jan 2008
    Posts
    1,894
    Location
    Renton, Washington
    Tractor
    Kubota L3750

    Default Re: stihl ms290 wont run

    Check the tank filter for one. You may have some old gas clogging up the diaphragm. In that case pull the carb off which isn't all that hard to do. If it is a Walbro carb it may be one large screw on the bottom of the carb. Unscrew that and check for microscopic stuff in the needle hole or gummed up gas. When you take the diaphragm off pay attention to which side goes back against the top half of the carb. Not too likely but the carb may be sucking air between the carb and cylinder head boot. That is rare though. Tightening the carb nuts would fix that.
    Also as mentioned look for cracked fuel lines from the tank and a return line to the tank...
    Been down this road before fixing other folks saws. The MS290 is a nice little saw.
    1st Peter 1:6-9

  6. #6
    Platinum Member
    Join Date
    Sep 2004
    Posts
    583
    Location
    south/central Va.
    Tractor
    Deutz Fahr Agrofarm 100, Stoll loader, bucket, forks & root grapple

    Default Re: stihl ms290 wont run

    More than likely the feul line. Have a farmboss that does the same thing every 2 years. The fuel line cracks and lets air in so it doesn't suck enough fuel to keep it running. Last one I replaced I put a good coat of grease on the line. Don't use the saw much now. The biggest fix was to buy a 7900 Dolmar saw. Now I don't have to bother with the Stihl. I need to sell it.
    Charolais

  7. #7
    Silver Member
    Join Date
    Jul 2008
    Posts
    171
    Location
    Boise, ID
    Tractor
    JD 2320

    Default Re: stihl ms290 wont run

    Yea, check the hoses, I had the same problem with my ms290. The best fix I did was sell the Stihl and buy a Husky. No problems ever since.
    JD 2320 with 200CX loader, 655 tiller, 62" MMM
    Husqvarna 372 24" full chisel chain
    I miss the Oliver 77 and 770

  8. #8
    Bronze Member
    Join Date
    Jun 2007
    Posts
    71
    Location
    NE Missouri
    Tractor
    BX1800 & Deere 770

    Default Re: stihl ms290 wont run

    Quote Originally Posted by robertk View Post
    I have the same chainsaw and that happened to me this past winter. Someone told me there is a small rubber hose that runs from the crankcase to the carb that acts as a vacumn to suck fuel into the carb and it can crack. I haven't checked it yet since I have another saw.
    You basically have an air leak from the impulse hose. It's a common problem on the 029/290 saws. Very easy to change. Your dealer will have it, it's pretty cheap.
    BX1800
    Deere 770

  9. #9
    Veteran Member rback33's Avatar
    Join Date
    May 2003
    Posts
    1,453
    Location
    Kansas

    Default Re: stihl ms290 wont run

    I will add one more vote to the fuel line. I have the same saw and had the same issue at the same age...

  10. #10
    Elite Member ToadHill's Avatar
    Join Date
    Oct 2005
    Posts
    2,711
    Location
    Catt county New York
    Tractor
    Kioti DK35, Ford 8N, Oliver Cletrac

    Default Re: stihl ms290 wont run

    I had the same problem with a ms250. I replaced the hose in the tank from the filter to the carb and it eended the problerm. Saw was the same age 3 years, I guess thats the life of the $14 hose.
    I can't control my day but I can control my attitude.

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