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  1. #1
    Gold Member Avondale's Avatar
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    Sep 2008
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    Apple Hill, Ont
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    Kioti DK 35; IH 574, Ranger 700 XP, Arctic Cat 500 TRV, Arctic Cat 400 FIS, Kawasaki 250 Bayou, Yamaha 200 BW.

    Default Stihl MS 270 Running On

    Can anyone offer any thoughts why my MS 270 continues to rev at full rpm after releasing throttle? It (eventually) returns to idle and will slow down if chain touched to saw log as a load. Any tips for fixing this would be appreciated. Thanks
    "Life is tough. It's tougher when you are stupid". John Wayne

  2. #2
    Platinum Member
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    Mar 2010
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    715

    Default Re: Stihl MS 270 Running On

    Quote Originally Posted by Avondale View Post
    Can anyone offer any thoughts why my MS 270 continues to rev at full rpm after releasing throttle? It (eventually) returns to idle and will slow down if chain touched to saw log as a load. Any tips for fixing this would be appreciated. Thanks
    I have the 260 Pro and am not familiar with your saw but you either have a problem with the throttle return spring[or similar] or the chain may just be too loose,the saw chain needs to be able to be pulled around the bar but it shoulded be able to free wheelDave

  3. #3
    Gold Member Avondale's Avatar
    Join Date
    Sep 2008
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    324
    Location
    Apple Hill, Ont
    Tractor
    Kioti DK 35; IH 574, Ranger 700 XP, Arctic Cat 500 TRV, Arctic Cat 400 FIS, Kawasaki 250 Bayou, Yamaha 200 BW.

    Default Re: Stihl MS 270 Running On

    Thank You for your thoughts. I am going to check the spring linkages but am unsure what they "should" be and how to tell the difference. I've had this saw for about 6 years and it's possible that, with time, the tension has slipped away. Maybe I'll go see a new one at the shop though that can be a big threat to my wallet. I am sure the chain tension is correct. I think that the loading of the saw by applying the high reving blade to a log is just an indication of poor adjustment with the carb or possibly governor ???
    "Life is tough. It's tougher when you are stupid". John Wayne

  4. #4
    Bronze Member
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    Sep 2010
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    83
    Tractor
    MM M5

    Default Re: Stihl MS 270 Running On

    If the linkage is ok I'd think a bad fuel line which would make it run lean, don't be running it like that. Other things would be a air leak ( carb boot, seals, loose carb bolts) clogged filter or carb, tank vent. Steve

  5. #5
    Silver Member amaxwell's Avatar
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    Sep 2008
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    tennessee
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    Cub Cadet-Yanmar ex450 -Ford 1300-Mahindra 2415

    Default Re: Stihl MS 270 Running On

    Agree on the air leaking in somewhere. I had one that the screws on the carb had vibrated loose and it did the same thing.
    amaxwell

  6. #6
    Gold Member Avondale's Avatar
    Join Date
    Sep 2008
    Posts
    324
    Location
    Apple Hill, Ont
    Tractor
    Kioti DK 35; IH 574, Ranger 700 XP, Arctic Cat 500 TRV, Arctic Cat 400 FIS, Kawasaki 250 Bayou, Yamaha 200 BW.

    Default Re: Stihl MS 270 Running On

    Many thanks for suggestions. I will look over this weekend.
    "Life is tough. It's tougher when you are stupid". John Wayne

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