Amsoil ratio question

Discussion in 'Motorized Bicycle General Discussion' started by borntofli, Aug 11, 2012.

  1. borntofli

    borntofli Member

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    I used to use amsoil in snowmobiles in years past and only had to mix at half ratio as other oils... worked great........

    What ratio are you guys running w/ this in the china motors??? Regular oil calls for 32:1... So are you running 50:1?
     
  2. JonD

    JonD New Member

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    I'm new to these bike motors, but I've been a 2 stroke outboard boat motor mechanic for 12 years... You can lean out your oil mix a little bit with better oil but I don't know how much I would lean this motor out. The cylinder is very soft aluminum and built nothing as strong as a snowmobile which has steel sleeves that can take the wear of a leaner mix. I'm personally not going to go much leaner than 16;1 when my motor is broken in. These china motors don't burn much fuel so they won't use very much oil at all even if you do run on a rich mix.
     
  3. Al.Fisherman

    Al.Fisherman New Member

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    I was running 32:1...That was until all my bikes burned up in a house fire. I was going to go to 50:1, as many members do.
     
  4. cmanns

    cmanns New Member

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    from what I read here I'd run 32:1 or 40:1 after break in.

    I don't have a china bay motor but my 33cc I ran with about 45:1 and now 32:1 ish and doesn't seem to run much cooler or hotter, just sounds more peppy and doesn't smoke as much.
     
  5. biknut

    biknut Active Member

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    I run Red Line synthetic 2 stroke oil. Red Line recommends 50:1, up to 100:1. I run it 50:1 because I live in a hot climate. After 2 years, and 2000 miles, I just removed a motor that was still running great. The only reason I changed it was because it was 48cc, and I wanted to go 80.
     
  6. Goat Herder

    Goat Herder Gutter Rider

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    You put a 80cc engine?:confused:
     
  7. TheOtherChris

    TheOtherChris New Member

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    I have two China girls and am running them hard (WOT commute to work)
    I run something between 40:1 and 50:1 and have not had a issue yet.
    I carry one of the Amsoil packets in the saddle bag for emergency fill ups. In the two quart tank, the packet is just shy of 50:1
     
  8. biknut

    biknut Active Member

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    It's really only 66cc, but it's equal to 80, 4 stroke cc's. That's the real secret to how the chinese figure the size of these engines. Not many people know that.
     
  9. scotto-

    scotto- Custom 4-Stroke Bike Builder

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    Ummm, wrong. They consider it 80cc incuding the squishband in the combustion chamber along with the actual cc of the piston travel. I thought most knowledgeable people knew that? It has nada to do with 4-strokes, but that's a cute summary ;)

    I've got an old Amsoil DVD of their product I can post with their permission.......let me know.

    dnut
     
    #9 scotto-, Aug 11, 2012
    Last edited: Aug 11, 2012
  10. cmanns

    cmanns New Member

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    ^ haha agree'd was sort of cute.

    Lots of engines can be rated two CC's, it makes you sound like you got a bigger engine xD
     
  11. scotto-

    scotto- Custom 4-Stroke Bike Builder

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    In Texas, everything is bigger laff
     
  12. biknut

    biknut Active Member

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    See what I mean, even you didn't know it.

    .ride7a
     
  13. biknut

    biknut Active Member

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    Of course, 66cc is a lot bigger than 4ci
     
  14. Goat Herder

    Goat Herder Gutter Rider

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    Yeah it is just that it ain't no 80 cc....laff
     
  15. biknut

    biknut Active Member

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    That all depends on if you're talking about cubit centimeters, or chinese centimeters lol.
     
  16. scotto-

    scotto- Custom 4-Stroke Bike Builder

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    Would you even know the difference ? laff
     
  17. Drewd

    Drewd New Member

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    If you putz around at less than 20mph then 50:1 is perfectly fine and if you get that optima stuff, than 100:1 is ok too (optima has less solvent in its blend so you end up getting same amount of oil as 50:1)

    If you ride hard, ride in hot weather, ride fast, or your throttle is like mine, at WOT 99% of the time, then 32:1 is preferred and you should seriously consider using a castor blended oil too. Right now I'm running 2 oz degummed 1st press castor oil blended with cheap walfart 2 stroke oil for a ratio of 32:1 in an engine that has gotten so much abuse over the years that I'm surprised it still runs and runs like new.
     
  18. Pilotgeek

    Pilotgeek New Member

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    Oil type matters a lot, too. You can easily run a full-synthetic in these engines at 50:1. I would never run as much at 16:1. That's way too much. Maybe if you're using regular motor oil or something, but that's completely unnecessary with two-stroke oil. They're also not just bare aluminum cylinders, they're usually chrome lined.
     

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