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MS241cm mods

Discussion in 'Chainsaw' started by Matt Hogden, Jul 9, 2018.

  1. Matt Hogden

    Matt Hogden ArboristSite Operative

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    Well, my new 241cm has 10 tanks through it now and i would say that it is run in.
    Just wondering what you guys are doing to squeeze more power out of these little gems

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  2. blsnelling

    blsnelling Site Contributor

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  3. Matt Hogden

    Matt Hogden ArboristSite Operative

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    Hey Brad I can't get the link to work

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  4. SCHallenger

    SCHallenger ArboristSite Guru

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    I have run Brad's ported 241. The torque is amazing. He definitely has the answer if you want super performance out of yours!
     
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  5. blsnelling

    blsnelling Site Contributor

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    Just search "MS241C", title only, posted by me.
     
  6. Matt Hogden

    Matt Hogden ArboristSite Operative

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    Ok . Thanks mate.
    Any chance you can work mine over?

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  7. Matt Hogden

    Matt Hogden ArboristSite Operative

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    Would a muffler mod and base gasket delete work on the MS241cm ?

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  8. Matt Hogden

    Matt Hogden ArboristSite Operative

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    .?

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  9. blsnelling

    blsnelling Site Contributor

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    I'm not taking any saw work. Sorry.
     
  10. Matt Hogden

    Matt Hogden ArboristSite Operative

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    No worries mate.
    What's your thought on a base gasket delete on these saws?

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  11. ericm979

    ericm979 ArboristSite Operative

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    Measure the squish clearance and see. Due to manufacturing tolerances removing the gasket could result in good squish clearance on one engine and not enough on another.
     
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  12. Matt Hogden

    Matt Hogden ArboristSite Operative

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    Okies. Thanks mate

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  13. blsnelling

    blsnelling Site Contributor

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    As already mentioned, you'll just have to measure your squish. Count on the gasket being about .017".
     
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  14. Matt Hogden

    Matt Hogden ArboristSite Operative

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    I have always been skeptical of base gasket deletes. Even when a tighter squish is achieved, due to the fact that "Lowering" the cylinder changes the height of the ports, possibly changing the power curve of the saw.
    Is this true? Or is it generally accepted that the benefit of the increase in compression and tighter squish of a "base gasket delete" far outweighs the changed timing of "lowering" the port timing.????
    I would love some clarification on this, as i have always been confused about this topic.
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  15. blsnelling

    blsnelling Site Contributor

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    Port timing change is totally negligible. Intake duration is increased which is a good thing. Exhaust and transfers are decreased a tiny bit, but blowdown is unchanged. It's a non-issue.
     
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  16. Matt Hogden

    Matt Hogden ArboristSite Operative

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    Sweet. Thanks Brad. That's what i wanted to hear! Lol
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  17. Overkill338

    Overkill338 Wear clean sprockets incase ur in an accident.

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    The muffler mod made a noticeable difference in mine. I'm about to do a small timing advance as well.
     
  18. Matt Hogden

    Matt Hogden ArboristSite Operative

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    How do you do a timing advance?

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  19. ericm979

    ericm979 ArboristSite Operative

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    Usually the timing pickup can be adjusted. If not you need to move the rotor on the crank. Advancing timing makes it more likely to overheat or detonate, both of which often kill pistons and cylinders.
     
  20. Matt Hogden

    Matt Hogden ArboristSite Operative

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    Let us know how it goes

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