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Jonsered 2258, chain won't stay tight????

Discussion in 'Chainsaws and Power Equipment' started by NYH1, Aug 5, 2025.

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  1. cezar

    cezar

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    Some but not all of my saws, for whatever reason require a 2-step process to tension.

    > Install chain
    > tension chain
    > blip throttle, it magically loosens back up
    > re-tension chain

    My M18 saw is the worst with this, it does it 100% of the time. My MS251 never does this.
     
    cezar, Aug 23, 2025
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  2. NYH1

    NYH1

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    Ours comes loose within a minute or so every time it's retightened. It's not even worth using it because we spend more time tightening the chain then cutting wood.

    Thanks, NYH1.
     
    NYH1, Aug 23, 2025
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  3. cezar

    cezar

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    Definitely a bad tensioner then.
     
    cezar, Aug 24, 2025
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  4. John D

    John D

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    That’s what I said only thing it wasn’t my 395 it was my 394
    I won’t say I have a lot of saws more like the right amount
     
    John D, Aug 25, 2025
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