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GS 550E gear ratios

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    GS 550E gear ratios

    Does anyone know the primary ratio and the gear ratios for a 1978 GS550E?

    #2
    Yes. I have them at home. I'm fairly sure the primary is 2:1. Final drive is 3.33:1

    the rest... well I looked at parts diagrams and counted teeth.
    You'd have to be crazy to be sane in this world -Nero
    If you love it, let it go. If it comes back....... You probably highsided.
    1980 GS550E (I swear it's a 550...)
    1982 GS650E (really, it's a 650)
    1983 GS550ES (42mpg again)
    1996 Yamaha WR250 (No, it's not a 4 stroke.)
    1971 Yamaha LT2 (9 horsepower of FURY.)

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      #3
      The primary reduction is 1.978
      The final reduction is 3.333
      1st gear 2.666
      2nd gear 1.777
      3rd gear 1.380
      4th gear 1.173
      5th gear 1.045
      6th gear .956

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        #4
        Thanks much

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