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  1. #1

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    Saito to Magnum

    I have a Saito 91 installed in a plane. I am going to replace it with a Magnum 91 4-stroke.

    The reason the Saito is just plain tired and i already have a NIB Magnum. I am running a slimline 4007 muffler on the Saito. The thread on the Saito is different from the Magnum.
    1 Does anyone know of a adapter that will thread into the Magnum so i can still use the same muffler?
    2 Does anyone know if the YS 120 thread is the same so i can use a slimline muffler from that?

    Thanks
    I want my Six Dollars!!!!

  2. #2

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    RE: Saito to Magnum

    Idon't know the exact Satio treads off the top of my head, but they are ususally standard metric threads. I had no trouble finding a tap to match the 120-150-180 exhaust size. 14 x 1 if I remember corectly. The O.S. engines and therfore the Magnums have special threads. I was not able to find a matching tap for them. I'm not sure about the Y.S engines. I've never owned one of them.

    The master of stripped threads,Clarence Lee would be the first place I would look to to make an adaptrer to mate the twothread forms. It may be pricely though. I'm sure it isn't a stock item.

    Good luckand let us knowwhat you end up with.

    Don

  3. #3
    SrTelemaster150's Avatar
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    RE: Saito to Magnum

    FA91S mufler thread is 12 X 1.

    FA65 through FA100 all use 12 X 1 thread.
    Club Saito #785 - FA91S, FA150, FA180, FA180HC/BBC, FA200TI, FA300TTDP: All with CH Ignitions CDI/Glow fuel
    SIG BH #41
    - 1/3 Spacewalker, Rascal 110
    CUB BH #231 - Wings Maker 1/5 J-3 Cub

  4. #4
    Old Fart's Avatar
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    RE: Saito to Magnum

    Nothing wrong with the magnum engines i've seen run,good value for money.
    Watch out for the ground eh?

  5. #5

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    RE: Saito to Magnum



    That is true. I have one of the Mag 91's and it has outlasted two 4*60's. and is still running strong.

    D_bodary, you could probably get a Slimline muffler foran OS 91 four strokefor less than the adaptorwill cost. I Have one on one of my Mag 91's

    That is if this is the setup you are looking for.

    Don

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  6. #6

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    RE: Saito to Magnum

    yes that is the set up i am looking for. I e-mailed slimline and they said they will send me one. As of right now i do not know the cost.
    I want my Six Dollars!!!!


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