MS661C Teardown and Failure Analysis

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  • Опубліковано 13 січ 2025

КОМЕНТАРІ • 35

  • @marriedwithsmallengines
    @marriedwithsmallengines Місяць тому +1

    Great video Richard! You are full of excellent information! 😊

  • @luvingfully
    @luvingfully Місяць тому +2

    I mix 40:1 for the reasons you state in this video. I switched to Honda HP2 oil as a result of your testing and opened up my third pint last week. I like it. Thank you very much!

  • @westcoastsaw1368
    @westcoastsaw1368 Місяць тому +2

    Never understood why they made that intake boot so stiff on 661 they always seem to ter down around that clamp
    Another good video Richard

  • @74willy81
    @74willy81 Місяць тому

    Another great video Richard, always so nice to have you share your knowledge and insight.
    I realize that producing these videos takes a lot of time and effort, greatly appreciated. Thank you!
    I honestly can't understand why you haven't broken the 100,000 subscriber threshold yet. Your channel is an undiscovered gem!

  • @patrickvennard838
    @patrickvennard838 Місяць тому +1

    If I lived in the US I would definitely bring my saws to you you always do a great job.

  • @Mike_Mike_0
    @Mike_Mike_0 Місяць тому

    Rich good maintenance tips 😊😊😊
    Great experience with these engimes ❤❤❤

  • @coreyhorrocks3504
    @coreyhorrocks3504 Місяць тому

    Thanks for the vids Richard I love your level of detail

  • @chrischiampo7647
    @chrischiampo7647 Місяць тому +3

    I’ve Replaced A Few Of Those Boots on The 661’s The AV Mounts Get Worn and The Tank/Carb And The Crankcase Pull Apart And Rip The Boot Especially If The Saw Gets Stuck in a Cut and The Owner Pulls Hard on The Handle To Get The Saw Out 😬😬😬

  • @alanwatts9232
    @alanwatts9232 Місяць тому

    Great stuff, thanks for the video, glad you could save the cylinder.

  • @steveriggenbach90
    @steveriggenbach90 2 місяці тому +2

    Red armour works great. Hate to see that happen. Glad some things were salvageable.

  • @kbittorf335
    @kbittorf335 Місяць тому

    I know I am fortunate to buy Schaeffer‘s in this area retail for 30 cents per ounce. I use the boat oil 32:1 with 91 E-free. That cylinder cleaned up great! I guess that‘s one downside to using a different piston once something happens down the road and you‘re SOL. Great job!👍

  • @aaronpowell4885
    @aaronpowell4885 2 місяці тому +7

    For the average operator under most circumstances, i know m-tronic and autotune are a godsend. But their ability to mask leaks so well is one downside IMO. Glad the cylinder cleaned up beautifully!

    • @oakiewoodsman
      @oakiewoodsman Місяць тому +1

      This cylinder cleaned up really well AP!

  • @KevinMaxwell-o3t
    @KevinMaxwell-o3t 3 дні тому

    I've gone back to using a 32:1 mix with Stihl two-stroke oil. It just doesn't make any sense to run these engines so close to the limit with 50:1 and barely adequate lubrication. I suppose if you're rich you can afford to burn up saws but my saws are keepers.

  • @ricksanchez7459
    @ricksanchez7459 Місяць тому

    You gotta treat the new av bushings gentle, they making em light and comfortable as possible.

  • @johngardner3020
    @johngardner3020 Місяць тому

    Is that torn intake boot issue more prevalent on the 661 than other saws or is the issue common in all larger saws subjected to heavy use?

  • @crazyfeller5704
    @crazyfeller5704 2 місяці тому +1

    👍👍👍

  • @steveriggenbach90
    @steveriggenbach90 2 місяці тому +1

    Please show you do your flush. Thanks

  • @902hand7
    @902hand7 2 місяці тому +1

    Crazy that she'd even run with the big a tear in the boot. Score 1 for m-tronic and 0 for the piston. 😉😉

  • @christianh5839
    @christianh5839 Місяць тому

    Hey Richard, can you try out some Aspen 2?

  • @sergep4965
    @sergep4965 2 місяці тому

    hello richard
    Another very interesting video thank you
    I wanted to ask you for a husqvarna 550 xp I do not find in france amsoil saber that you recommend as well as the red armor
    but echo power blind yes semi-synthetic that does not carbon
    oil husqvarna jaso FD the piston side escape is horrible black not so clean that it oil xp + with gasoline pump
    by aspen it is great even with a dirty oil , but it costs expensive to use so I panache
    can be trusted to echo power blind semi synthesis oil for the 550 xp?
    Thank you in advance for future response

    • @richardflagg3084
      @richardflagg3084  Місяць тому

      Yes. 25ml per liter. Echo Power blend should do a very good job.

    • @sergep4965
      @sergep4965 Місяць тому

      Hello Richard thank you very much for the answer

  • @Eganperformancesaws
    @Eganperformancesaws Місяць тому

    I’ve got a weisco 661 piston if you want/need it

    • @richardflagg3084
      @richardflagg3084  Місяць тому

      Thanks Jason, I appreciate the offer. Port work was originally done with a factory piston. I never got around to the additional mods after the Wiseco was installed.

  • @saltrock9642
    @saltrock9642 2 місяці тому +1

    Is that CT3’s 400 you workin on?

  • @larrywarner9314
    @larrywarner9314 Місяць тому +1

    32:1 is how I mix

  • @tedneitzel
    @tedneitzel 2 місяці тому +1

    So all I know is shit happens! What I also know is it will be right before it leaves your shop!

  • @MOTA_KRAMPUS
    @MOTA_KRAMPUS Місяць тому

    I do 45:1, hope you restore it to old glory.

  • @jimssawsnstuff8903
    @jimssawsnstuff8903 Місяць тому

    Yeh, good to add a limiter to the spring travel so guys don’t rip boots when they reef on the saw when it gets pinched.
    Would you run just the top ring? Lots of guys do that…

    • @richardflagg3084
      @richardflagg3084  Місяць тому +1

      If I had to, yes. There's enough of the cylinder wall there to run both.

  • @dujeamizic3588
    @dujeamizic3588 Місяць тому

    I mix 50:1