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  1. #51

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    RE: Saito 91 on Gasoline

    *
    Hi w8ye, that was a timely post!

    Is your "regular pump gas" straight 92 unleaded? Here in Ozzie Land we have E10, 92, 95 and 98 Premium.

    The 92, by law, can have up to 5% ethanol. The Pennzoil 2 stroke oil is available here too.

    Is "the Saito carb" the standard Saito 150 glow fuel carby?

    Regards RossG
    radial1951
    _______________

  2. #52
    Moderator w8ye's Avatar
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    RE: Saito 91 on Gasoline

    Yes it is the regular Saito 150 glow carby

    Our regular pump gasoline is listed as being 89 octane but it is the same as your 92. It is E10. The octane ratings are measured different

    I have about 10 hours on it.
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
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  3. #53

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    RE: Saito 91 on Gasoline


    ORIGINAL: w8ye

    Yes it is the regular Saito 150 glow carby

    Our regular pump gasoline is listed as being 89 octane but it is the same as your 92. It is E10. The octane ratings are measured different

    I have about 10 hours on it.
    What brand of oil are you using and the Ratio? Thanks Capt,n
    I never met a engine I did not like !

  4. #54

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    RE: Saito 91 on Gasoline

    *
    Hi captinjohn

    See Page 2 , second last post #49.

    Regards RossG
    radial1951
    ________________

    ORIGINAL: captinjohn

    What brand of oil are you using and the Ratio? Thanks Capt,n
    __________________

  5. #55
    wingspan99's Avatar
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    RE: Saito 91 on Gasoline

    In reply to RossG (Radial) ,
    E85 is closer in fuel mixture to methanol than straight gas and should give a steadier needle setting and better power in a Saito engine than straight gas. I think my plug was fouling because of the castor oil I used, I'm going to try some synthetic. Sadly, I don't spend much time tinkering with my RC stuff since I got an RV-4. -Tom in CO
    Tom in Yoder, CO

  6. #56
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    RE: Saito 91 on Gasoline

    Jezmo, would you please tell me where I can buy the parts to convert my Saito engines to gas...or, where I could send engines for conversions? Thank you!

    Jerry

  7. #57

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    RE: Saito 91 on Gasoline

    Hi can anyone tell me what size hardened dowel and bearing you use to convert to needle roller bearing?

  8. #58
    Moderator w8ye's Avatar
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    RE: Saito 91 on Gasoline

    The Saito 91 doesn't have enough room in it to convert the rod bottom end to needle bearings
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
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  9. #59

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    RE: Saito 91 on Gasoline

    Ah sorry didnt explain properly as brain wasnt working, earlier in the post someone was on about the st g90 which is what i have and have already converted it to gas but want to lower the oil content. Not highjacking thread but seems some people on this thread know more about it then me

  10. #60

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    RE: Saito 91 on Gasoline

    I am building a twin with 2 ST G90 on it. I would like to put ignition and a CM6 plug on them and still run glow fuel. Will this work? The reason I want to do this is I want to mount tacks in the wing behind the engines.
    Ken
    Ken
    Wherever conversion engines are outlawed, only outlaws will have conversion engines.

    ULTA SPORT BROTHERHOOD #8

  11. #61
    Moderator w8ye's Avatar
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    RE: Saito 91 on Gasoline


    ORIGINAL: noginblue

    Ah sorry didnt explain properly as brain wasnt working, earlier in the post someone was on about the st g90 which is what i have and have already converted it to gas but want to lower the oil content. Not highjacking thread but seems some people on this thread know more about it then me
    16:1 gas/oil when running the bushed connecting rod

    You will need to search for the needle bearing the others are using and select the proper size drill rod for the crank pin to run less oil.

    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
    Recipient, Mangledhand award August 2008
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    Original AMA #31261

  12. #62
    Moderator w8ye's Avatar
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    RE: Saito 91 on Gasoline


    ORIGINAL: box car

    I am building a twin with 2 ST G90 on it. I would like to put ignition and a CM6 plug on them and still run glow fuel. Will this work? The reason I want to do this is I want to mount tacks in the wing behind the engines.
    Ken
    Should run fine but there will be a problem with the reach on the CM-6 plug. You will need to shim the plug up with two washers under the threads

    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
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    Original AMA #31261

  13. #63

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    RE: Saito 91 on Gasoline

    Thank you for the info.
    Ken
    Wherever conversion engines are outlawed, only outlaws will have conversion engines.

    ULTA SPORT BROTHERHOOD #8

  14. #64

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    RE: Saito 91 on Gasoline

    how bad does the spark plug may affect the engine tunning?

    Iยดm using cheap chinese 1/4-32 on my ST90 and it is great on high speeds, but a little unstable on lower speeds.

    Mauricio

  15. #65
    Moderator w8ye's Avatar
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    RE: Saito 91 on Gasoline

    My Saito 150 idles real well on gas with a RCEXL 1/4-32 plug and the original carb

    You may have some other problem like an air leak somewhere?
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
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  16. #66
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    RE: Saito 91 on Gasoline

    The little RCEXL plug works great in my ST51, ST90, Saito 91 and Saito 180. No idle problems at all with any of them.
    Spektrum DX8i, DA DLE SuperTigre OS FOX Saito Enya Jett TT: John 3:16

  17. #67
    Moderator w8ye's Avatar
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    RE: Saito 91 on Gasoline

    I have a Saito 125 or SG20 with a RCEXL 1/4-32 plug also and it runs fine at idle.
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
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    Original AMA #31261

  18. #68

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    RE: Saito 91 on Gasoline

    I am instilling Rcexl on 2, ST- 90 with 1/4-32 plugs. How do you lock the drive washer in place after the timimg is set?
    Ken
    Ken
    Wherever conversion engines are outlawed, only outlaws will have conversion engines.

    ULTA SPORT BROTHERHOOD #8

  19. #69
    Moderator w8ye's Avatar
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    RE: Saito 91 on Gasoline

    I just tighten the prop
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
    Recipient, Mangledhand award August 2008
    Club Saito Member #7
    Original AMA #31261

  20. #70

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    RE: Saito 91 on Gasoline

    Thank you, just wanted to make sure they did not use a set screw some how.
    Ken
    Ken
    Wherever conversion engines are outlawed, only outlaws will have conversion engines.

    ULTA SPORT BROTHERHOOD #8

  21. #71
    Moderator w8ye's Avatar
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    RE: Saito 91 on Gasoline

    On some engines they may slip a couple times before they settle down and you will have to re-adjust the timing but I never had this problem.

    If seen the prop drive washers that were split and these will never hold a permanent setting. If you have trouble, examine the hub carefully.
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
    Recipient, Mangledhand award August 2008
    Club Saito Member #7
    Original AMA #31261


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