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  1. #1
    novaboy's Avatar
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    50:1 premix on A GP1200

    Was wondering if it would be wise to run 50:1 or should i stay with 40:1. Also is there any kind of trouble I might run into?


  2. #2

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    addicted knows

  3. #3
    cheatin' piston popper addicted's Avatar
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    50:1 is stock.

  4. #4
    novaboy's Avatar
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    would you recommend running 50:1 on a premix ski. What about WO runs, is it still safe?

  5. #5
    JonnyB's Avatar
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    Quote Originally Posted by novaboy View Post
    would you recommend running 50:1 on a premix ski. What about WO runs, is it still safe?
    I believe the way the ratio rating on the ski works is the oil pump is rated at 50:1 at WOT

  6. #6
    cheatin' piston popper addicted's Avatar
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    you are talking about a 97-99 non powervalve gp1200, right? if so, 50:1 is the max that the variable oil pump puts out. starts around 100: at low speed. if you motor is stock or pretty close 50:1 premix is fine.

    I had a ported, bored out high compression '99 gp. i ran amsoil dominator at 50:1 no problem.

  7. #7
    novaboy's Avatar
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    Yeah its a completely stock 98 gp1200. I run the amsoil dominator to .......yeah I know its overkill. So 50:1 premix is OK.

  8. #8

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    I run 50:1 premix with my '97 GP1200. Previous owner ran the same for 6 years without a problem.

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